In this article we will interface Nextion Display with ESP32, we will see how to configure the display for the first time, download the needed resources, and how to integrate it with the ESP32 microcontroller board. The Nextion display is a powerful Human Machine Interface (HMI) solution that lets you create interactive graphical user interfaces (GUIs) for your embedded projects. When combined with the ESP32 microcontroller, you can develop user-friendly interfaces for various applications, including IoT devices, automation projects, and data visualization dashboards.

Hardware & Software Requirements to Interface Nextion Display with ESP32

Hardware:

• ESP32 Dev Board (e.g., ESP32-WROOM-32)

• Nextion Display

• Jumper wires

Software:

• Nextion Editor

• Arduino IDE 

Nextion Display Setup

Nextion Editor is a development software used for visual building of graphic interface for embedded/IOT/GUI-intensive devices with various types of TFT displays and Touch Panels. Using this software, we can start creating user interfaces for TFT based devices in a faster and easier way.

You can download Nextion Editor from this link

https://nextion.itead.cc/resources/download/nextion-editor/

After downloading the editor install the nextion editor .

Nextion Editor General Overview

Here’s a quick overview of the different sections of the Nextion Editor.

1. Main Menu

2. Canvas – this is where you add your components to build the User Interface.

3. Toolbox – this is where you have a wide variety of components you can add to the user interface, like pictures, progress bar, buttons, sliders, and much more.

4. Picture/Fonts list – this shows the fonts and pictures imported to your projects. Here you can also add new fonts and pictures.

5. Page area – you can manage your pages here, like add more pages, copy and delete pages.

6. Attributes area – this part shows your component’s attributes. You can edit the component’s attributes here.

7. Compiler output window – this will show any errors occurred during compiling.

8. Event window – here you can add code to be run when an event is met.

Interfacing ESP32 with Nextion Display

• Connect the Nextion display to the ESP32:

• Connect the TX pin of the Nextion display to the RX pin of the ESP32 (e.g., ESP32 Tx0 to Nextion Rx).

• Connect the RX pin of the Nextion display to the TX pin of the ESP32 (e.g., ESP32 Rx0 to Nextion Tx).

• Use the jumper wires to connect the GND pins of both devices.

Configure the Nextion display:

• Open the Nextion Editor and create a new project.

• Select the model of your Nextion display.

• Design your desired interface using the built-in components like buttons, text boxes, images, and progress bars.

• Assign unique IDs to each component for interaction with the ESP32 code.

Example User Interface designed in Nextion Editor:

The above image shows the connection diagram of ESP 32 wifi four relay board with the nextion display.From the ESP 32 board J1 and J2 connect 5v and Ground(G) to the nextion display as show below.Connect Tx of nextion to the Rx0 of the ESP32 board and Rx of nextion to the Tx0 of the ESP32 board .This will establish Uart communication.

Example Code to Show Temperature, Humidity and State of Button on Nextion Display

#include "Nextion.h"

#include "DHT.h"

#define DHTPIN 4     // what digital pin we're connected to

// Uncomment whatever type you're using!

#define DHTTYPE DHT11   // DHT 11

//#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321

//#define DHTTYPE DHT21   // DHT 21 (AM2301)

// Initialize DHT sensor.

DHT dht(DHTPIN, DHTTYPE);

// LED pins

const int led1 = 8;

const int led2 = 9;

// Declare your Nextion objects - Example (page id = 0, component id = 1, component name = "b0") 

NexText tState = NexText(0, 4, "tState"); 

NexButton bOn = NexButton(0, 2, "bOn");

NexButton bOff = NexButton(0, 3, "bOff");

NexSlider h0 = NexSlider(0, 5, "h0");

NexText tSlider = NexText(0, 6, "tSlider");

NexText tTempC = NexText(1, 5, "tTempC");

NexText tTempF = NexText(1, 4, "tTempF");

NexProgressBar jHumidity = NexProgressBar(1, 8, "jHumidity");

NexText tHumidity = NexText(1, 9, "tHumidity");

NexButton bUpdate = NexButton(1,10, "bUpdate");

// Register a button object to the touch event list. 

NexTouch *nex_listen_list[] = {

 &bOn,

 &bOff,

 &h0,

 &bUpdate,

 NULL

};

/*

 * Button bOn component pop callback function. 

 * When the ON button is released, the LED turns on and the state text changes. 

 */

void bOnPopCallback(void *ptr) {

 tState.setText("State: on");

 digitalWrite(led1, HIGH);

}

/*

 * Button bOff component pop callback function. 

 * When the OFF button is released, the LED turns off and the state text changes. 

 */

void bOffPopCallback(void *ptr) {

 tState.setText("State: off");

 digitalWrite(led1, LOW);

}

/*

 * Slider h0 component pop callback function. 

 * When the slider is released, the LED brightness changes and the slider text changes. 

 */

void h0PopCallback(void *ptr) {

 uint32_t number = 0;

 char temp[10] = {0};

 // change text with the current slider value

 h0.getValue(&number);

 utoa(number, temp, 10);

 tSlider.setText(temp);

 // change LED brightness

 analogWrite(led2, number); 

}

/*

 * Button bUpdate component pop callback function. 

 * When the UPDATE button is released, the temperature and humidity readings are updated. 

 */

void bUpdatePopCallback(void *ptr) {

 // Reading temperature or humidity takes about 250 milliseconds!

 // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)

 float h = dht.readHumidity();

 // Read temperature as Celsius (the default)

 float t = dht.readTemperature();

 // Read temperature as Fahrenheit (isFahrenheit = true)

 float f = dht.readTemperature(true);

 // Check if any reads failed and exit early (to try again).

 if (isnan(h) || isnan(t) || isnan(f)) {

 return;

 }

 // Update temperature in Celsius

 static char temperatureCTemp[6];

 dtostrf(t, 6, 2, temperatureCTemp);

 tTempC.setText(temperatureCTemp);

 // Update humidity percentage text and progress bar

 char hTemp[10] = {0}; 

 utoa(int(h), hTemp, 10);

 tHumidity.setText(hTemp);

 jHumidity.setValue(int(h));

 // Update temperature in Fahrenheit

 static char temperatureFTemp[6];

 dtostrf(f, 6, 2, temperatureFTemp);

 tTempF.setText(temperatureFTemp);

}

void setup(void) { 

 dht.begin();

 Serial.begin(9600);

 // You might need to change NexConfig.h file in your ITEADLIB_Arduino_Nextion folder

 // Set the baudrate which is for debug and communicate with Nextion screen

 nexInit();

 // Register the pop event callback function of the components

 bOn.attachPop(bOnPopCallback, &bOn);

 bOff.attachPop(bOffPopCallback, &bOff);

 h0.attachPop(h0PopCallback);

 bUpdate.attachPop(bUpdatePopCallback, &bUpdate);

 // Set LEDs as outputs

 pinMode(led1, OUTPUT);

 pinMode(led2, OUTPUT);

}

void loop(void) { 

 /*

 * When a pop or push event occured every time,

 * the corresponding component[right page id and component id] in touch event list will be asked.

 */

 nexLoop(nex_listen_list);

}

Working of the Project

Once the hardware is connected and the software is programmed, the ESP32 communicates with the Nextion display through serial communication. The ESP32 sends commands to the display, telling it what to display and how to respond to user input. The Nextion display then updates its GUI and sends back any user interactions to the ESP32 for further processing.

You May Also Like To Read: AT Commands, Call and SMS Using A7672S 4G GSM with Nuvoton Microcontroller

Conclusion

In this post we have seen the interfacing of Nextion display with ESP32, following the above tutorial you can explore multiple dimensions of Nextion Display and as well of ESP32. Nextion is a great display that makes the process of creating user interfaces simple and easy. Campus Component offer a diverse range of components to fuel your innovation. If you're ready to elevate your projects with the seamless synergy of Nextion Displays and ESP32, and many other electronic components, visit Campus Component today and buy electronic components online in India.

In this blog, we will build an IOT based smart kitchen using ESP8685. Our purpose from this project is to automate the basic Kitchen loads and real time monitor them using ESP8685. A home's kitchen holds significant importance, serving as a central hub for daily activities. Ensuring safety remains paramount during any kitchen-related tasks. Swift identification and resolution of issues such as gas leaks, uncontrolled fires, high temperatures, and excessive moisture are critical. Additionally, the remote monitoring and control of kitchen appliances such as lighting, refrigerators, ovens, etc., become imperative. The primary objective of this blog is to develop a prototype for a Smart Kitchen leveraging IoT (Internet of Things) technologies.

In this project we will control a kitchen load through a relay connected to ESP8685, so you can connect multiple loads in the kitchen like refrigerator, water purifier, ventilation system, kitchen lights, etc. 

We’ll take a look at how to connect the relay to the ESP8685 and build a web server to control a relay remotely (or as many relays as you want).

Hardware Requirements and Software Requirements

Hardware Requirements:

• ESP8685 Microcontroller Module

• 5V-2 Channel Relay Module

• Jumper Wires

• Bulb as Load

Software Requirements:

• Arduino IDE

Wiring a Relay Module to the ESP32

Connect the relay module to the ESP8685 as shown in the following diagram. The diagram shows wiring for a 2-channel relay module,

We’re connecting the IN1 pin to GPIO 26, you can use any other suitable GPIO. Here we are using Lamp, for trial, after proper testing you can connect multiple kitchen loads with multiple relays.

After successful connection, upload the following code in ESP8685. Through this we will send a LOW signal to let the current flow, and a HIGH signal to stop the current flow. Also we will control this relay with help of ESP8685 web server.

Code:

#include "WiFi.h"

#include "ESPAsyncWebServer.h"

// Set to true to define Relay as Normally Open (NO)

#define RELAY_NO    true

// Set number of relays

#define NUM_RELAYS  5

// Assign each GPIO to a relay

int relayGPIOs[NUM_RELAYS] = {2, 26, 27, 25, 33};

// Replace with your network credentials

const char* ssid = "CampusComponent";

const char* password = "CampusComponent";

const char* PARAM_INPUT_1 = "relay"; 

const char* PARAM_INPUT_2 = "state";

// Create AsyncWebServer object on port 80

AsyncWebServer server(80);

const char index_html[] PROGMEM = R"rawliteral(

<!DOCTYPE HTML><html>

<head>

 <meta name="viewport" content="width=device-width, initial-scale=1">

 <style>

 html {font-family: Arial; display: inline-block; text-align: center;}

 h2 {font-size: 3.0rem;}

 p {font-size: 3.0rem;}

 body {max-width: 600px; margin:0px auto; padding-bottom: 25px;}

 .switch {position: relative; display: inline-block; width: 120px; height: 68px} 

 .switch input {display: none}

 .slider {position: absolute; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; border-radius: 34px}

 .slider:before {position: absolute; content: ""; height: 52px; width: 52px; left: 8px; bottom: 8px; background-color: #fff; -webkit-transition: .4s; transition: .4s; border-radius: 68px}

 input:checked+.slider {background-color: #2196F3}

 input:checked+.slider:before {-webkit-transform: translateX(52px); -ms-transform: translateX(52px); transform: translateX(52px)}

 </style>

</head>

<body>

 <h2>ESP Web Server</h2>

 %BUTTONPLACEHOLDER%

<script>function toggleCheckbox(element) {

 var xhr = new XMLHttpRequest();

 if(element.checked){ xhr.open("GET", "/update?relay="+element.id+"&state=1", true); }

 else { xhr.open("GET", "/update?relay="+element.id+"&state=0", true); }

 xhr.send();

}</script>

</body>

</html>

)rawliteral";

// Replaces placeholder with button section in your web page

String processor(const String& var){

 //Serial.println(var);

 if(var == "BUTTONPLACEHOLDER"){

 String buttons ="";

 for(int i="1;" i<=NUM_RELAYS; i++){

 String relayStateValue = relayState(i);

 buttons+= "<h4>Relay #" + String(i) + " - GPIO " + relayGPIOs[i-1] + "</h4><labelswitch\""><input type="\"checkbox\""to"ggleCheckbox(this)\""" + String(i) + "\" "+ relayStateValue +"><spanslider\""></span></label>";

 }

 return buttons;

 }

 return String();

}

String relayState(int numRelay){

 if(RELAY_NO){

 if(digitalRead(relayGPIOs[numRelay-1])){

 return "";

 }

 else {

 return "checked";

 }

 }

 else {

 if(digitalRead(relayGPIOs[numRelay-1])){

 return "checked";

 }

 else {

 return "";

 }

 }

 return "";

}

void setup(){

 // Serial port for debugging purposes

 Serial.begin(115200);

 // Set all relays to off when the program starts - if set to Normally Open (NO), the relay is off when you set the relay to HIGH

 for(int i="1;" i<=NUM_RELAYS; i++){

 pinMode(relayGPIOs[i-1], OUTPUT);

 if(RELAY_NO){

 digitalWrite(relayGPIOs[i-1], HIGH);

 }

 else{

 digitalWrite(relayGPIOs[i-1], LOW);

 }

 }

 // Connect to Wi-Fi

 WiFi.begin(ssid, password);

 while (WiFi.status() != WL_CONNECTED) {

 delay(1000);

 Serial.println("Connecting to WiFi..");

 }

 // Print ESP32 Local IP Address

 Serial.println(WiFi.localIP());

 // Route for root / web page

 server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){

 request->send_P(200, "text/html", index_html, processor);

 });

 // Send a GET request to <ESP_IP>/update?relay=<inputMessage>&state=<inputMessage2>

 server.on("/update", HTTP_GET, [] (AsyncWebServerRequest *request) {

 String inputMessage;

 String inputParam;

 String inputMessage2;

 String inputParam2;

 // GET input1 value on <ESP_IP>/update?relay=<inputMessage>

 if (request->hasParam(PARAM_INPUT_1) & request->hasParam(PARAM_INPUT_2)) {

 inputMessage = request->getParam(PARAM_INPUT_1)->value();

 inputParam = PARAM_INPUT_1;

 inputMessage2 = request->getParam(PARAM_INPUT_2)->value();

 inputParam2 = PARAM_INPUT_2;

 if(RELAY_NO){

 Serial.print("NO ");

 digitalWrite(relayGPIOs[inputMessage.toInt()-1], !inputMessage2.toInt());

 }

 else{

 Serial.print("NC ");

 digitalWrite(relayGPIOs[inputMessage.toInt()-1], inputMessage2.toInt());

 }

 }

 else {

 inputMessage = "No message sent";

 inputParam = "none";

 }

 Serial.println(inputMessage + inputMessage2);

 request->send(200, "text/plain", "OK");

 });

 // Start server

 server.begin();

}

void loop() {

}

After uploading the code to ESP8685 will try to connect to the WIFI, it will provide you with an IP address, after connecting with the IP on your smartphone, you will get a screen like this:

Now for testing you can press any button for turning ON and OFF the relay.

Now, you can use the onscreen buttons to control your Kitchen loads remotely using your smartphone, making your kitchen smart.

Conclusion

This is how you can design your own IoT Based Smart Kitchen using ESP8685 with Automation & Monitoring System using the ESP8685 web server. Further in this project you can try to incorporate multiple relays and multiple loads from the kitchen. Also you can interface sensors like Gas sensors to detect gas leaks in the kitchen, to make the system more advanced. 

If you are an embedded engineer working in the electronic industry, and somewhere in the project you are required to determine the moving object's position or calculate the altitude and velocity for a specific location. In such instances, the integration of a GPS module becomes invaluable.

In this article you will understand how to get GPS coordinates(longitude, latitude, altitude), GPS speed, date-time information from the Allystar GEM1205 module.

So let’s get started!

Hardware Requirements to Interface GPS with ESP 32

1. ESP-Wroom 32 Dev Module

2. Allystar GEM1205-2516AS0

3. Jumper Wires

4. Breadboard

Software Requirements

1. Arduino IDE

2. GPS Libraries

Introduction to Allystar GEM1205 Module

Allystar GEM1205 is a high-performance dual-band (L1/L5) multi-system GNSS positioning module. It supports the global civil navigation systems, including GPS, IRNSS, BDS, GLONASS, Galileo, and QZSS. Embedded antennas ensure GEM1205 to work at L1 and L5 bands simultaneously to increase the number of visible satellites assisting by GPS, BDS, Galileo, and IRNSS signals, which makes this module achieve high positioning accuracy and short TTFF, especially in a rough urban environment. 

GEM1205 supports external active antennas featured with auto-detecting and auto-switching. With a compact body and high performance, GEM1205 is widely applied to tracking applications, like automotive, consumer, and industrial tracking.

GEM1205-2516AS0 Specifications

• Supports GPS, BDS, IRNSS, Galileo and QZSS systems covering L1 and L5 bands 

• Supports AGPS/DGPS/SBAS (WAAS/EGNOS/MSAS/GAGAN) 

• Built-in LNA & SAW for better sensitivity 

• Integrated with dual-feed (L1&L5) antenna 

• Supports Geo-Fence function 

• Supports message broadcast service for IRNSS 

• Ultra-low power consumption around 40mA in dual-band tracking mode 

• Supports external active antenna featured with auto-detecting and auto-switching 

• Compact size: 26.7mm*18.5mm*7.0mm

Interfacing Allystar GEM1205 Module with ESP32

Make the connections according to the schematic shown below:

• Connect ESP32’s 3V pin to Vcc of module and Ground to Ground.

• Connect 34 pin to TXD of the module.

• Connect the 35 pin to the RXD of the module.

ESP32 Code

// After interfacing the Allystar GEM1205 module with ESP32 upload the following code in ESP32.

#include <TinyGPS++.h>

#define GPS_BAUDRATE 9600  // The default baudrate of Allystar GEM1205 module is 9600

TinyGPSPlus gps;  // the TinyGPS++ object

void setup() {

 Serial.begin(9600);

 Serial2.begin(GPS_BAUDRATE);

 Serial.println(F("ESP32 - GPS module"));

}

void loop() {

 if (Serial2.available() > 0) {

 if (gps.encode(Serial2.read())) {

 if (gps.location.isValid()) {

 Serial.print(F("- latitude: "));

 Serial.println(gps.location.lat());

 Serial.print(F("- longitude: "));

 Serial.println(gps.location.lng());

 Serial.print(F("- altitude: "));

 if (gps.altitude.isValid())

 Serial.println(gps.altitude.meters());

 else

 Serial.println(F("INVALID"));

 } else {

 Serial.println(F("- location: INVALID"));

 }

 Serial.print(F("- speed: "));

 if (gps.speed.isValid()) {

 Serial.print(gps.speed.kmph());

 Serial.println(F(" km/h"));

 } else {

 Serial.println(F("INVALID"));

 }

 Serial.print(F("- GPS date&time: "));

 if (gps.date.isValid() && gps.time.isValid()) {

 Serial.print(gps.date.year());

 Serial.print(F("-"));

 Serial.print(gps.date.month());

 Serial.print(F("-"));

 Serial.print(gps.date.day());

 Serial.print(F(" "));

 Serial.print(gps.time.hour());

 Serial.print(F(":"));

 Serial.print(gps.time.minute());

 Serial.print(F(":"));

 Serial.println(gps.time.second());

 } else {

 Serial.println(F("INVALID"));

 }

 Serial.println();

 }

 }

 if (millis() > 5000 && gps.charsProcessed() < 10)

 Serial.println(F("No GPS data received: check wiring"));

}

Applications Using Allystar GEM1205 Module with ESP32

1. Real time location tracking

2. Geofencing

3. Outdoor navigation, etc and many more.

Conclusion

From the above tutorial on interfacing the Allystar GEM1205 module module with the ESP32, you now possess a valuable skill set to create diverse applications. As an embedded engineer in the electronic industry, the ability to determine object positions, calculate altitudes, and measure velocities becomes seamless with this integration.

For your hardware needs, trusted brands like Allystar GEM1205 module and ESP32 microcontrollers can be found at Campus Component. If you are looking for electronic components by Espressif and modules like GPS, GSM, reach out to the Electronics components suppliers- Campus Component today!

The application of Internet of Things(IOT) is becoming increasingly beneficial in our everyday lives. One area where the IOT is beginning to have a major impact is in Electric vehicles, Electric Vehicle Charging, and its Infrastructure. With the introduction of IOT technology, EV Charging Stations become more efficient and convenient not only for drivers but also for service workers.

The application of IOT in electric vehicle charging infrastructure enables remote control and management, enabling charging stations to offer personalized services to EV drivers and communicate in real-time to unexpected events.

In this special article, we will explore the diverse application of IOT in EV chargers and how this synergy is propelling the Electric Mobility Revolution.

Benefits of IoT in the EV Industry

The integration of IoT technology in EV charging stations has become a hot topic in the industry because of its multiple applications, generating massive interest among companies seeking to adopt innovative solutions. This technology offers a range of notable benefits:

Improved User Experience:

• Drivers gain access to real-time information about their vehicle’s charging status, battery range, and maintenance needs through smartphone apps or vehicle dashboards.

• Empowers users to plan journeys effectively, find nearby charging stations, and monitor vehicle performance.

Enhanced Efficiency:

• Real-time data collection by sensors in various vehicle components, including batteries, motors, and charging guns.

• Analysis of data to identify patterns, anomalies, and areas for improvement.

• Optimization of vehicle systems and energy usage, leading to improved energy efficiency and accurate range estimation.

Minimized Downtime:

• Sensors continuously collect and analyze data from vehicle components to identify potential issues or malfunctions.

• Timely maintenance or repairs based on the analyzed data minimizes extended downtime.

• Proactive maintenance ensures EVs remain on the road for longer, reducing disruption to operations and enhancing productivity.

Cost-Efficient Operations:

• IoT sensors analyze data from various vehicle components to detect anomalies or signs of potential failures.

• Proactive addressing of issues before they lead to breakdowns or major repairs.

• Reduction in downtime, minimized repair costs, and increased overall cost-effectiveness of EV operations.

IoT Applications in Electric Vehicles

Vehicle Connectivity:

• Real-time data collection through IoT technology regarding various vehicle performance parameters such as battery health, tire pressure, and engine condition.

• Continuous monitoring and analysis of data to ensure optimal vehicle operation.

• Early detection of potential issues using advanced analytics and machine learning.

• Predictive maintenance based on data analysis to reduce downtime and repair costs.

Predictive Maintenance:

• Direct connectivity between EVs and charging stations through IoT, streamlining charging procedures and automating vehicle identification and billing.

• Efficient charging processes and seamless payment procedures for EV owners.

• IoT facilitates communication between EVs and traffic management systems, enabling intelligent traffic management.

• Real-time information exchange about traffic light changes to optimize speed, reduce stop times, and enhance road safety.

• Real-time data sharing about vehicle location and nearby facilities.

Energy Management:

• Real-time data analytics through IoT to monitor and adjust energy usage in various vehicle components.

• Fine-tuning energy consumption to extend the vehicle’s range efficiently.

• Smart charging systems optimize the charging process, potentially reducing charging time.

• IoT systems detecting idle states and adjusting power usage to conserve energy.

• Improved range and convenience for EV owners through optimized energy consumption.

Fleet Management:

• Real-time tracking of vehicle location and performance metrics using IoT technology.

• Optimization of vehicle routing based on location, traffic conditions, and vehicle status.

• Early identification of issues to prevent breakdowns and improve vehicle utilization.

• Data-driven optimization of routing, minimizing unnecessary travel and reducing fuel consumption.

• Significant cost savings and environmental responsibility in fleet operations.

Personalized User Experience:

• IoT in electric vehicles provides custom in-car experiences for enhanced user satisfaction.

• Automatic adjustment of user preferences such as music and climate settings.

• Personalized driving environment promoting brand loyalty and positive word-of-mouth referrals.

• Increased user satisfaction crucial in the competitive EV market.

EV Charging Management:

• Remote monitoring and management of EV charging infrastructure through IoT.

• Ensuring charging stations are available and functioning correctly when needed.

• Real-time data on energy usage for accurate billing information and efficient energy management.

• Dynamic load balancing to manage power demand effectively and prevent grid overloading.

• Integration of renewable energy sources for sustainable EV charging.

Battery Management:

• Real-time monitoring of EV battery health and performance through IoT.

• Tracking temperature, voltage, current, and charge level for optimal battery operation.

• Predictive maintenance through advanced data analytics to identify potential issues.

• Optimization of the battery charging process, managing the charging rate for efficiency.

• Scheduled charging during off-peak hours to reduce charging costs.

Challenges of Implementing IoT in Electric Vehicle Charging Stations

High Implementation and Maintenance Costs:

• Installation of the IoT system poses a significant financial challenge.

• Ongoing maintenance costs add to the overall expense, making implementation economically demanding.

Security Concerns:

• Ensuring protection against hackers and potential security threats is a critical challenge.

• Establishing robust security measures becomes imperative to safeguard sensitive data and user information.

Reliability Issues:

• Ensuring proper charging of batteries is paramount, requiring a reliable system.

• Challenges arise when the battery cannot be plugged in until fully charged, impacting the efficiency of the charging process.

Necessity for Regular System Updates:

• Regular upgrades are essential for the charging station to accommodate the latest technologies.

• Ensuring compatibility and functionality with evolving technologies is a continual challenge.

Lack of Flexibility:

• The charging station's lack of flexibility hampers its adaptability to new technologies.

• Regular updates are crucial to maintaining compatibility and ensuring optimal performance.

Addressing these challenges is necessary for the successful integration and sustained effectiveness of IoT in electric vehicle charging stations. Overcoming these obstacles will contribute to the seamless operation and evolution of smart charging infrastructure.

Conclusion

IOT in EV charging infrastructure have applications from optimizing energy consumption and vehicle performance to enabling personalized driving experiences and real time monitoring of charging processes, the IoT enhances operational efficiencies and the overall user experience. However, its challenges, such as cybersecurity and flexibility should be taken care of. Electric vehicles are an innovative step towards better control over air pollution, and the IoT solution plays a critical part.

We at Campus Component, provides a one-stop destination for all IoT modules and electronic components from top brands, you can explore a wide range of cutting-edge components and solutions. Empower your projects with quality electronic components available at Campus Component, your trusted partner in the world of electronics." 

In today's fast-paced world, communication is key. Traditional notice boards are getting a tech-savvy upgrade with the integration of ESP32-C6 and dot matrix LED displays. In this blog post, we'll create a Smart Notice Board that combines the power of ESP32-C6 with the dot matrix LED display. Get ready to transform your notice board into an intelligent, interactive board!

The traditional methods of writing the notice on paper, and having a person deliver the information to the respective groups, are prone to errors. The person delivering could deliver it to the wrong group, or tamper with the information being sent, etc.

With the electronics industry moving at a fast pace, we are able to solve many such problems with digital replacements. Our project aims at eliminating the use of paper in offices, schools & colleges, and other institutions which are used for the purpose of notice boards. It also minimizes the risk of errors, by replacing paper with Dot Matrix LED displays.

In this tutorial, we will understand how to make a Web Controlled Smart Notice Board with ESP32-C6 & Dot Matrix LED Display.

Project Overview

In this project, the ESP32-C6 WiFi Module can be interfaced with an 8-in-1 MAX7219 Dot Matrix LED Display. The ESP32-C6 connects to a WiFi Network and generates a Web page. We can access the web page using the local IP Address of ESP32-C6. Using the Web Dashboard, we can send any message and display it on Dot Matrix LED Display.

Material Requirements:

In the ever-evolving landscape of embedded systems and IOT, the integration of 4G GSM communication has become important for diverse applications. This article aims to provide a detailed tutorial on utilizing AT commands of the A7672S 4G GSM module with Nuvoton microcontroller. In this tutorial we will interface A7672S 4G GSM module with Nuvoton MS51FB 8051 and perform basic  AT commands, Calling and sending SMS.

Hardware Requirements

Interfacing Nuvoton Microcontroller with SIM7672 4G GSM Module

GSM modules, such as the A7672S, come with a USART adapter that can be directly connected to a computer via a MAX232 module or via the Tx and Rx pins to a Nuvoton MS51FB 8051 .  Other pins, such as MIC+, MIC-, SP+, SP-, and so on, can be used to connect a microphone or a speaker. A 12V adapter can be used to power the module through a standard DC barrel connector.

After completing the aforementioned steps, place the SIM card into the module's slot and turn it on; a power LED will light up. 

After a few moments, you should notice a red (or any other color) LED flashing once every three seconds. This indicates that your Module was successful in connecting to your SIM card.

You can also take reference from the circuit diagram given below to interface A7672S GSM module with Nuvoton MS51FB 8051:-

After successfully interfacing the NUVOTON MS51FB 8051 with A7672S, upload the following code, so that you will be able to send A7672S AT commands using the Nuvoton controller and perform any Network Operations.

Code

#include "NuMicro.h"

#define UART_PORT    UART0

#define UART_BAUDRATE 115200

void UART0_Init() {

 /* Enable peripheral clock */

 CLK_EnableModuleClock(UART0_MODULE);

 /* Select UART clock source */

 CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART_MASK, CLK_CLKDIV_UART(1));

 /* Reset IP */

 SYS_ResetModule(UART0_RST);

 /* Configure UART0 and set UART0 Baudrate */

 UART_Open(UART_PORT, UART_BAUDRATE);

}

void SendATCommand(const char *command) {

 /* Send AT command through UART */

 int i;

 for (i = 0; command[i] != '\0'; i++) {

 UART_WRITE(UART_PORT, command[i]);

 while (UART_IS_TX_EMPTY(UART_PORT) == 0);

 }

}

int main() {

 /* Unlock protected registers */

 SYS_UnlockReg();

 /* Init System, peripheral clock and multi-function I/O */

 SYS_Init();

 /* Initialize UART0 for communication with SIM7672 */

 UART0_Init();

 /* Enable interrupt and set priority */

 NVIC_EnableIRQ(UART0_IRQn);

 NVIC_SetPriority(UART0_IRQn, (1 << __NVIC_PRIO_BITS) - 2);

 /* Lock protected registers */

 SYS_LockReg();

 /* Example: Sending AT command "AT\r\n" */

 SendATCommand("AT\r\n");

 while (1) {

 // Your main code here

 }

}

In this code, the UART0_Init function initializes the UART0 module, and the SendATCommand function sends the specified AT command through UART. The main function demonstrates sending the "AT\r\n" command, which is a basic AT command to test communication.

AT commands are sent to the modem as plain text over a serial (UART) connection comprising two wires, one for receive (RX) and one for transmit (TX), or via USB.

Now let’s start by sending the AT commands and understand their use.

You May Also Like To Read :   Difference Between 8051 Vs AVR Microcontrollers

Basic A7672S AT Commands

AT - Attention Command

AT command, fundamental command to check if the module is responsive.

AT+CGMI

AT+CGMI retrieve the manufacturer information of the SIM7600X module.

AT+CSQ

AT+CSQ Check the signal quality to gauge the network connection strength.

AT+CREG

AT+CREG Check the network registration status to ensure the module is connected to a cellular network.

AT+CGATT

AT+CGATT, Determine whether the module is attached or detached from the GPRS network.

SMS Handling Commands

AT+CMGF=1 Configure the SMS message format. Setting it to 1 enables text mode.

AT+CMGS

AT+CMGS="+123456789" send an SMS to the specified phone number. Replace "+123456789" with the recipient's phone number.

AT+CMGL

AT+CMGL="ALL"  List all SMS messages stored on the SIM card, providing details such as sender, timestamp, and message content.

AT+CMGR

AT+CMGR=1 Read a specific SMS message by index. Replace 1 with the index of the desired message.

```ATD+123456789;``` Initiate a call to the specified phone number. Replace "+123456789" with the recipient's phone number. 

ATH

```ATH``` Terminate an ongoing call. 

ATA

```ATA``` Answer an incoming call.

Conclusion

Finally we have successfully performed AT commands operations through NUVOTON MS51FB 8051 and A7672S 4G GSM module, we also covered a wide range of functionalities from basic module information retrieval to advanced features like SMS handling,and call management. Further you should  refer to the Sim7672 module documentation for more AT commands for specific details and further optimizations.

If you're an IoT developer and need reliable electronic components, including the A7672S module, and other GSM modules from SIMCOM, consider exploring options at Campus Component. Also you can get a wide range of microcontrollers from Nuvoton. If you are looking for Best in standard GSM modems and Microcontrollers and other electronic components, reach out to Campus Component- electronic component supplier today!

With the use of GSM data can be sent to a web server via HTTP using POST/GET. This allows us to connect any Embedded or IOT applications and other sensors to the Internet at a reasonable price if Ethernet, LoRa or WiFi is not available at the site. In This article we will learn how to send a HTTP request with the A7672S using AT commands.

The AS7672 GSM module is a powerful tool that enables seamless integration of Global System for Mobile Communications (GSM) technology into electronic projects. In this blog post, we'll deep dive into the step-by-step process of performing HTTP GET requests using the A7672S GSM module, unlocking a world of possibilities for your IoT (Internet of Things) applications.

Project Overview

In this project the GSM module i.e A7672S is interfaced with Microcontroller, and the server connection is established by the AT commands passed by microcontroller to the GSM module. By performing GET requests we can get the information stored on our server and also download files, or images, etc.

Hardware Requirements

SIM7672S is the LTE Cat 1 module which supports wireless communication modes of LTE-FDD/GSM/GPRS/EDGE.It supports maximum 10 Mbps downlink rate and 5 Mbps uplink rate. 

Meanwhile A7672S integrates abundant industrial standard interfaces with powerful expansibility, such as UART, USB, I2C and GPIO, which makes it perfectly suitable for main IOT applications such as telematics, surveillance devices, industrial routers, and remote diagnostics etc.

Hardware Connection

1. Connect the A7672S to ESP32 via UART pins i.e RX pin to TX and TX pin to Rx.

2. Connect a proper power supply to ensure the module turns on.

After successfully making the connections we will code the ESP32 so the whole process gets automated.

Copy the following code and paste in Arduino IDE and select ESP32 Dev Module, further compile the code and upload it:

1. Initialize the GSM Module:

Write a simple Arduino sketch to initialize the GSM module. This includes configuring the necessary parameters such as baud rate, communication pins, and other settings

#include <SoftwareSerial.h> 

SoftwareSerial gsmSerial(7, 8); // RX, TX 

void setup()

{ Serial.begin(9600); 

gsmSerial.begin(9600); // Initialize the GSM module 

gsmSerial.println("AT"); 

delay(1000); 

while(gsmSerial.available()) 

{ Serial.write(gsmSerial.read()); } } 

2. Configure Internet Settings:

Configure the APN (Access Point Name) settings for your cellular network provider. This information is crucial for establishing an internet connection through the GSM module.

void setup() {

// Set the APN for your cellular network provider gsmSerial.println("AT+CGDCONT=1,\"IP\",\"your_apn\""); 

delay(1000); 

while(gsmSerial.available()) 

{ Serial.write(gsmSerial.read()); } } 

//Replace "your_apn" with the correct APN for your cellular network provider.

3. Perform HTTP GET Request:

Now, it's time to send an HTTP GET request. This example sends a request to a server with an endpoint "/data" and displays the response.

void setup() 

{ 

// Perform HTTP GET request 

gsmSerial.println("AT+HTTPINIT"); 

delay(1000); 

while(gsmSerial.available()) 

{ Serial.write(gsmSerial.read()); } gsmSerial.println("AT+HTTPPARA=\"URL\",\"http://your_server.com/data\""); 

delay(1000); 

while(gsmSerial.available()) 

{ Serial.write(gsmSerial.read()); } 

gsmSerial.println("AT+HTTPACTION=0"); 

delay(10000); // Adjust delay based on server response time 

while(gsmSerial.available()) 

{ Serial.write(gsmSerial.read()); } 

gsmSerial.println("AT+HTTPTERM"); 

delay(1000); 

while(gsmSerial.available()) 

{ Serial.write(gsmSerial.read()); } 

} 

//Replace "http://your_server.com/data" with the actual URL you want to request.

After Successfully compiling and Uploading you will get the following response on Serial Monitor for the performed GET requests.

Conclusion

By following these steps, you can successfully perform HTTP GET requests using the A7672S GSM module. This opens up opportunities for creating IoT devices, remote monitoring systems, and much more. Experiment with different commands and explore the capabilities of the GSM module to your specific project requirements.

The Internet of Things (IoT) is rapidly changing the world around us from smart homes to self-driving cars, IOT devices are becoming increasingly common in our everyday lives. With the ability of connecting a wide range of devices and sensors to the internet, IOT has transformed industries like transportation, healthcare, defense, and many more. With increasing connectivity of devices IOT has paved the way for innovative applications and opened up new possibilities. In this blog, we will explore top IOT trends that are shaping the future and unlocking the potential of this technology.

Let’s Look at Some of the Current IoT Trends Ahead

1. IoT in Healthcare

During the COVID-19 pandemic, there was a significant increase in the use of online healthcare consultations due to safety concerns. Higher-risk patients turned to virtual consultations, digital diagnostics, and remote treatment from the comfort of their homes.The healthcare field emerged as a leading sector in the Internet of Things (IoT) during the crisis, and it may be referred to as the Internet of Medical Things (IoMT) in the future. 

IoT-enabled applications, such as wearables and connected devices, can track patients' vitals throughout the day, providing valuable data-driven insights.

IoT devices like wearables are preferred tools in healthcare branches such as elderly care or assisted living, as they enable constant monitoring of patients' health and safety. They also assist people with heart disease by monitoring vitals efficiently and improving their quality of life.

IoT has greatly benefited the healthcare sector by enabling remote patient monitoring and facilitating the development of innovative solutions like wearable technology, smart hospitals, and telemedicine.

The opportunities offered by IoT devices in healthcare are vast, including personalized medicine, real-time monitoring, and remote treatment. IoT devices continue to evolve and have become an integral part of our digitized world. They play a crucial role in healthcare, not only for convenience and speed but also in saving lives.

The terms "Internet of Healthcare Things" (IoHT) or "Internet of Medical Things" (IoMT) are used to describe smart healthcare gadgets and the interconnected systems utilized in healthcare information technology.

The IoMT has diverse applications across healthcare domains such as:

• Remote Patient Monitoring: Allowing patients with chronic diseases to connect with healthcare providers.

• Telemedicine: Where doctors receive IoMT data to make informed decisions, including personalized medication prescriptions.

Other applications of IoMT include medication adherence, where electronic pillboxes ensure timely medication intake, and emergency response systems that automatically notify emergency rooms of alarming changes detected by wearable gadgets. IoMT also supports preventive healthcare by empowering individuals to take charge of their health and receive early alerts about potential issues.

Recent developments in the IoMT, such as wearable technology, advanced hospital design, and real-time health data analytics, are revolutionizing the healthcare sector by enabling remote monitoring and enhancing patient experience.

2. IoT in Logistics

There are several applications and rapid development of IOT in Logistics as this is the most growing field in future:

Shipment Tracking and Monitoring

Wireless tech Devices such as Radio-frequency identification (RFID)tags, eSIM, GSM, GPRS and Global positioning system (GPS), sensors- provides logistics companies the ability to track shipments' location and to monitor container temperature, relative humidity and other real-time conditions. With IoT technology with the help of AI algorithms can process this data to assist route management and improve security, which will be predicting emerging issues, such as maintenance, to prevent problems.

Inventory Management

IoT technology is used to automate inventory management. For example, logistics companies can place RFID tags on items stored in warehouses to track the products' location and inventory levels in real time. This helps the inventory manager to efficiently keep the track of stocked items and levels.

Fleet Management

IOT enabled fleet management offers real-time vehicle location, vehicle current status and speed. This way, businesses can optimize routes and scheduling, helping improve fleet performance. These solutions can help reduce fuel costs and assist in monitoring drivers' so that they can manage and utilize their time well.

Predictive Maintenance

The data collected from different IoT devices, like connected sensors, can help identify patterns, automatically predict the failures in equipment and schedule maintenance.

3. IoT Connectivity - 5G, Wi-Fi 6, LPWAN, and Satellites

One of the main challenges faced by IoT networks is the need for faster wireless data rates.

The advancement of wireless technologies is crucial to enhance various aspects of IoT, including sensors, edge computing, wearables, and smart homes.

5G: Advanced IoT Networks

5G networks offer significant advantages for IoT solutions, especially in terms of speed and data processing capabilities.

Compared to 4G LTE, 5G provides faster and more efficient connectivity, making it ideal for IoT networks.

Wi-Fi 6: Enhanced Indoor Connectivity

Wi-Fi 6 operating in the 6 GHz band greatly improves the potential bandwidth for IoT technology, particularly in indoor settings.

Faster communication among devices ensures a more reliable IoT system, and Wi-Fi 6 is especially beneficial for smart home IoT networks.

LPWAN: Low-Power Wide-Area Network

LPWAN is an emerging technology suitable for connecting low-bandwidth IoT devices over larger areas.

With low bit rates and increased energy efficiency, LPWAN is cost-effective and ideal for machine-to-machine communication in IoT networks.

Satellite: Geographically Separated Networks

Satellites can power IoT technology in geographically separated networks.

Traksat, for example, utilizes Globalstar satellites to enable satellite-powered IoT devices for emergency reporting and assistance requests, providing immediate GPS information to headquarters for rescue preparations.

4. AI and IoT Technology

The combined applications of Internet of Things (IoT) and Artificial intelligence (AI) can revolutionize commercial solutions. AI algorithms have advanced to the point where they can deliver reliable results with minimal data input. By combining IoT and AI, we can create Intelligent Machines capable of automating tasks and making autonomous decisions.

Benefits of Combining IoT and AI in Various Industries

Automation: These technologies enable the automation of big and large tasks, freeing up human resources for more valuable work.

Decision-Making: Intelligent Machines powered by IoT and AI can make informed decisions without human intervention, leading to faster and more efficient processes.

Cost Reduction: Automating processes through IoT and AI can help reduce operating costs by optimizing resource utilization and streamlining workflows.

Downtime Reduction: IoT devices can collect real-time data, allowing AI algorithms to detect faults and predict maintenance needs, minimizing downtime.

Increased Productivity: Intelligent Machines can handle repetitive tasks with precision and speed, resulting in improved productivity for businesses.

5. IoT Security

Security is a major concern for IoT, as these devices are often connected to the internet and can be vulnerable to cyberattacks. Once the malware accesses the whole system, big malicious activity can be conducted. User’s privacy and sensitive corporate information will also be at risk. Both types of users will have to take extra precautions when it comes to having an array of connected devices that could possibly compromise their personal data. 

In 2023, we can expect to see increased focus on IoT security, with new technologies and best practices emerging to help protect these devices. The rise in unsecured connected devices emphasizes the continuous threat they pose. Consequently, IoT security has become an evolving trend, prompting numerous businesses worldwide to develop IoT security solutions using a variety of technologies.

Future of IoT

The Internet of Things (IoT) has seamlessly permeated various aspects of our global economy and way of life. It encompasses interconnected consumer products like appliances, security systems, and automobiles, as well as extensive manufacturing applications in agribusiness and power sectors. Projections indicate that the expenditure on IoT will continue to rise steadily, reaching an estimated $1.1 trillion in 2023, with sustained year-over-year growth.

Conclusion

In conclusion, the future of IoT is bright, with many emerging trends and applications set to transform industries and improve our daily lives. IoT will continue to revolutionize various sectors and create new opportunities. As we embrace these IoT trends, we must also address the associated challenges and ensure the ethical and responsible deployment of this powerful technology.

If you are building an IoT device and looking for guidance and best in class microcontrollers, wireless modules, and electronic components from brands like SIMCOM, Allystar, Espressif, Ai-Thinker, Hope-Rf, Lora, Digi, then reach out to us at Campus Component today!

The Internet of Things (IoT) is greatly revolutionizing the industrial sector. By connecting physical devices and systems to the internet, IoT is enabling a new wave of smart industrial applications that are improving efficiency, productivity, and safety.

By integrating IoT devices with data and automation it has been leveraging this technology to enhance operational efficiency, optimize resource utilization, and drive innovation in large manufacturing industries. In this blog post, we will explore the role of IoT technology in powering smart industrial applications and the benefits it brings to the industrial sector.

What is Industrial IOT?

The industrial internet of things (IIoT) refers to the utilization of intelligent sensors and actuators to virtualized manufacturing and industrial processes. Also recognized as the industrial internet or Industry 4.0, IIoT makes use of the capabilities of intelligent machines and real-time analysis to leverage the information generated by conventional machines in industrial environments over the years. The fundamental principle driving IIoT is that intelligent machines excel at collecting and analyzing data instantaneously compared to humans but also possess good communication skills.

By deploying interconnected sensors and actuators networks, automated industries can easily detect inefficiencies and issues, resulting in time and cost savings. In the context of manufacturing, IIoT has immense potential in areas such as quality control, sustainable and eco-friendly practices, traceability in the supply chain, and overall supply chain efficiency.

What Is IoT In Industrial Automation?

IoT devices are smart devices connected to the internet which take data from connected sensors, which also communicates with other IOT devices. 

Industrial IoT or IIoT refers to IoT solutions fuelling the potential of artificial intelligence, machine learning, and robotic process automation in manufacturing, supply chains, management systems, industrial security and other industrial applications.

IoT Technology in Industrial Automation:

• Enhances operational efficiency

• Saves costs and improve margins

• Optimizes raw material and energy consumption

• Reduces time-to-market

IoT platforms are important in taking full advantage of IoT devices. An IoT platform is cloud-based and manages vast amounts of operational data extracted from IoT sensors in real-time. This capability makes it easier to access all industrial data, run analytics, and draw useful insights for decision-making.

Applications of Industrial Internet Of Things

1. Industrial Automation

Industrial automation is becoming a common norm, and IoT is the fuel which is driving that growth. By connecting devices, sensors, and machinery, IoT enables real-time monitoring and control of industrial processes. This connectivity allows industries to automate routine tasks, gather critical data, and make informed decisions based on accurate and up-to-date information. IOT helps in optimizing production lines, managing inventory, or monitoring equipment conditions, overall IoT-driven industrial automation offers increased efficiency, reduced downtime, and improved productivity.

2. IIOT Improves Asset Management and Maintenance

IoT technology plays an important role in asset management and maintenance within industrial environments. By deploying IoT sensors on equipment, industries can monitor various parameters such as temperature, pressure, vibration, and energy consumption. This data can be analyzed in real-time to identify faults and potential failures, allowing for predictive maintenance strategies. As a result, companies can minimize unplanned downtime, extend asset lifespan, and optimize maintenance schedules, leading to substantial cost savings and improved overall operational efficiency.

3. Optimal Resource Utilization

Efficient resource utilization is important for industrial operations, and IoT helps achieve this goal. By integrating IoT devices throughout the production process, businesses can closely monitor and manage resource consumption. For example, IoT-enabled smart meters can track energy usage, which enables companies to identify areas of high consumption and implement energy-saving measures. Similarly, IoT sensors can monitor water usage, and other resources. With IoT-driven optimization, companies can achieve sustainability goals, reduce costs, and minimize their environmental impact.

4. IIOT Improves Supply Chain Management

The integration of IoT technology in the industrial sector has revolutionized supply chain management. IoT devices, such as RFID tags and sensors, provide real-time data from movement of goods, from raw materials to finished products. This end-to-end visibility enables industries to track inventory, monitor storage conditions, and streamline logistics operations. With accurate and real-time data, companies can optimize inventory levels, track storage quantity. IoT-driven supply chain management ensures enhanced customer satisfaction.

5. Enhanced Safety and Security

Safety is a top priority in industrial settings, with help of IoT technology it’s possible to increase workplace safety and security. IoT devices, such as wearable sensors and connected surveillance systems, enable real-time monitoring of environmental conditions, equipment performance, and employee health. Additionally, IoT-based security systems provide continuous monitoring of premises, preventing unauthorized access and ensuring prompt response to incidents. By leveraging IoT for safety and security, industries can create a safer working environment and avoid potential risks.

Conclusion

As IoT technology continues to develop, we can expect to see even more innovative and groundbreaking applications. For example, IoT could be used to create self-driving factories, or to monitor and manage complex supply chains and operations. As IIoT continues to evolve, it will undoubtedly shape the future of smart industrial applications, opening up new possibilities for businesses across various sectors.

In the rapid development of Embedded systems and IoT (Internet of Things), the ESP8266 series of Wi-Fi modules has become popular for its ease of use and affordability. Recently Espressif launched its successor, i.e., the ESP8685 Wi-Fi module, which is a powerful upgrade to revolutionize the world of connected devices. In this blog post, we'll discuss in depth details of the ESP8685, exploring its features, advantages, and its potential impact on the IoT.

What is ESP8685?

ESP8685 is an ultra-low-power and highly-integrated MCU-based SoC solution that supports 2.4 GHz Wi-Fi and Bluetooth® Low Energy (Bluetooth LE). It is a powerful and versatile chip that can be used in a wide variety of applications, including smart home devices, industrial automation, and wearables and all types of IoT application. The block diagram of ESP8685 is shown below.

Pin Layout of ESP8685:

Below diagram shows the Pin Definition of ESP8685

It comes with Ultra Low Power SoC with RISC-V Single-Core CPU Supporting IEEE 802.11b/g/n (2.4 GHz WiFi) and Bluetooth® 5 (LE) 2MB(ESP8685H2) or 4MB(ESP8685H4) flash in the 4×4mm QFN package.

Refer ESP8685 datasheet for more details on Architecture.

Let’s See the Features of ESP8685:

WIFI

1) ESP8685 has IEEE 802.11b/g/n-compliant WiFi.

2) It Supports 20MHz, 40MHz bandwidth in the 2.4 GHz band.

3) 1T1R mode with data rate up to 150 Mbps 

4) Wi-Fi Multimedia (WMM).

CPU and Memory

 1) 32-bit RISC-V single-core processor, up to 160MHz..

 2) Core Mark® score:–1 core at160 MHz, 407.22 Core Mark, 2.55 Core Mark/MHz.

 3) 384KB ROM.

 4) 400KB SRAM (16KB for cache).

 5) 8KB SRAM in RTC.

 6) Access to flash accelerated by cache 

 7) Supports flash In-Circuit Programming (ICP).

Advanced Peripheral Interfaces

1) 15 × programmable GPIOs 

2) Digital interfaces:

– 3× SPI (SPI0 and SPI1 are used to connect the SiP flash. Only SPI2 is available).

– 2×UART

– 1×I2C

– 1×I2S

– Remote control peripheral, with 2 transmit channels and 2 receive channels

– LED PWM controller, with up to 6 channels

– Full-speed USB Serial/JTAG controller

– General DMA controller (GDMA), with 3 transmit channels and 3 receive channels

– 1×TWAI®controller compatible with ISO 11898-1(CAN Specification 2.0) 

3) Analog interfaces:

–2×12-bit SAR ADCs, up to 6 channels

–1× temperature sensor

4) Timers:

–2×54-bit general-purpose timers

–3×watchdog timers

–1×52-bit system timer

Low Power Management

•Power Management Unit with four power modes.

Security

1) Secure boot 

2) Flash encryption 

3) 4096-bit OTP, up to 1792 bits for use 

4) Cryptographic hardware acceleration:

–AES-128/256 (FIPSPUB197) 

5) Permission Control 

6) SHA Accelerator (FIPSPUB180-4) 

7) RSA Accelerator 

8) Random Number Generator (RNG) 

9) HMAC 

10) Digital signature

Applications of ESP8685

• Smart Home

– Light control

– Smart button

– Smart plug

– Indoor positioning.

• Industrial Automation

– Industrial robot

– Mesh network

– Human machine interface (HMI)

– Industrial field bus.

• Health Care

– Health monitor

– Baby monitor.

• Consumer Electronics

– Smart watch and bracelet

– Over-the-top (OTT) devices

– Wi-Fi speaker

– Logger toys and proximity sensing toys.

• Smart Agriculture

– Smart greenhouse

– Smart irrigation

– Agriculture robot.

• Retail and Catering

– POS machines

– Service robot.

• Audio Device

– Internet music players

– Live streaming devices

– Internet radio players.

• Generic Low-power IoT Sensor Hubs 

• Generic Low-power IoT Data Loggers

Conclusion

ESP8685 combines advanced features, low power consumption, and affordability. Its robust connectivity, powerful processing, offer developers endless possibilities for creating innovative smart applications. If you are looking for a Wi-Fi and Bluetooth LE-enabled chip with ultra-low power consumption from Espressif, ESP8685 Wifi Module is a great option to consider.