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#include // Include IR thermometer library #include // Include Wire.h - Arduino I2C library In that same global area, you may want to define an IRTherm object to be used throughout the rest of the sketch. To begin, include the SparkFunMLX90614 library and Wire.
#Download wire h library code
There are a few lines of code you'll probably stick in every MLX90614-interfacing code you'll write. Either a doctor visit is in my future, or I need to fuss with emissivity settings.
#Download wire h library serial
This may occur due to Serial communication delays.96.4☏. NOTE: If you get it to work and the LCD prints something weird it should fix it after a few seconds with the initialize function. If you print things like "connected" or any other thing the code will not work. Make sure you are only printing the values you want to share between the Arduino and the ESP8266 in the Serial Monitor.
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#Download wire h library how to
Read carefully how to upload code to Arduino UNO in this documentation, step 7.If still not working unplug, reconnect, try to upload and then try the previous solution again.If the code is still not uploading and giving you an error do this.READ THE CODE BEFORE UPLOADING AND MAKE ANY NECESSARY CHANGES.ĪLWAYS DISCONNECT THE ARDUINO CABLE BEFORE DISCONNECTING ANY WIRE. Now that you know how to upload and receive data, you can upload the actual code to the esp8266s connected to the Arduinos and the Arduinos. YOU SHOULD ONLY PRINT THE DESIRED STRING ON THE SERIAL MONITOR, ANY OTHER PRINT LINE WILL INTERRUPT THE COMMUNICATION. In this tutorial they send other sensor data to firebase, you can read it to get an idea of how it works or even try it out. STEP 5: Understand how Serial Communication works. ALSO, CHECK THE COMMENTS ON THE TUTORIAL. GO TO THE ERROR PART AT THE END IF IT DOESN'T WORK. They connect a NodeMCU to the ESP8266 but you can use the same connections to the Arduino UNO.Īs for advice, I would suggest you create a google sheet or excel with the colours you are using for the ESP8266 so you don't get confused. In this tutorial, they explain very well how to set it up.įollow this step-by-step video. STEP 4: Connect ESP8266 to Firebase to Send & Receive Data You can follow this tutorial to get it working. STEP 3: Connect the other Arduino to the DHT11 Sensor Understand that you are not connecting the Arduino to the internet, you are connecting the ESP8266 to the internet You can later send data between the two boards via the Serial terminal.įor this part, you can use either I2C communication as we did or normal communication. You use the Arduino UNO to communicate with the ESP8266. Note that they work as two different boards and have different codes. STEP 1: Understand how Arduino UNO and ESP8266 work together. Send this data to Firebase using an esp8266 module and then download the data in another Arduino UNO using an esp8266, to finally display it onto an LCD. In this cool IoT project, you read data from a humidity and temperature sensor connected to one Arduino UNO.