RKTM WiFi Thermometer

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Building a DIY WiFi Thermometer with the ESP12E Module Are you looking to create a low-cost, high-tech thermometer that can send temperature readings directly to your smartphone? Look no further than this easy-to-make DIY WiFi thermometer project. With the help of the ESP12E module, you'll be able to connect your thermometer to your home network and monitor the temperature in real-time from anywhere. The first step is to gather all the necessary components for this project. You will need an Arduino Uno board, a DS18B20 digital temperature sensor, a WiFi shield (such as the ESP12E), a USB cable, and a breadboard. Once you have all the parts, it's time to start building your DIY thermometer. To begin, connect the DS18B20 temperature sensor to the analog pins on your Arduino board. Next, plug in the WiFi shield and attach it to the top of your Arduino board using a small screwdriver. Make sure the connections are secure before moving on to the next step. Now that all the components are connected, it's time to write the code for this project. Using the Arduino IDE, create a new sketch and upload the following code: #include <DallasTemperature.h> #include <WiFiEsp.h> // Define the temperature sensor pins const int tempPin = A1; // Define the WiFi shield pins const int SSID_PIN = 2; const int KEY_PIN = 3; void setup() { // Initialize the serial communication Serial.begin(9600); // Connect to the WiFi network WiFi.begin("yourSSID", "yourPASSWORD"); // Wait for the connection to establish while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.println("Connecting to WiFi..."); } // Print a message when connected to the WiFi network Serial.println("Connected to WiFi"); } void loop() { // Read the temperature from the sensor float temp = readTemperature(tempPin); // Send the temperature reading to your smartphone via WiFi sendTemperatureReading(temp); delay(1000); // Wait for 1 second before taking another reading } // Function to read the temperature from the sensor float readTemperature(int pin) { // Read the raw data from the temperature sensor float rawTemp = analogRead(pin); // Convert the raw data to a temperature reading in degrees Celsius return (rawTemp / 1024.0) * 100; } // Function to send the temperature reading via WiFi void sendTemperatureReading(float temp) { // Create a new WiFi client and connect to your smartphone WiFiClient client; // Send the temperature reading to your smartphone as a JSON object String json = "{\"temperature\":" + String(temp) + "}"; client.println(json); } This code will upload the temperature readings directly to your smartphone, allowing you to monitor the temperature in real-time. To test this project, simply connect your Arduino board to your computer and open the serial console. You should see the temperature reading being sent to your smartphone every second. Tips and Variations * If you want to send the temperature readings to multiple smartphones, you can modify the code to use a WiFi server instead of a client. * To increase the accuracy of the temperature readings, you can use a more accurate temperature sensor such as the DS18B20 or the TMP36. * If you want to add more features to your DIY thermometer, you can modify the code to include functions for sending email alerts or SMS notifications. With this easy-to-make DIY WiFi thermometer project, you'll be able to monitor the temperature in real-time from anywhere using your smartphone. So why wait? Get started today and take your home automation projects to the next level!