Once that message is received, it can then be viewed in the Arduino serial window. Arduino 1, the Master, is programmed to request, and then read, 6 bytes of data sent from the uniquely addressed Slave Arduino. Several functions of Arduino's Wire Library are used to accomplish this. In this example, two Arduinos are programmed to communicate with one another in a Master Reader/Slave Sender configuration via the I2C synchronous serial protocol. In some situations, it can be helpful to set up two (or more!) Arduino boards to share information with each other. Digital Input -How to use the button with Arduino.Learning Examples | Foundations | Hacking | Links.How to install ESP8266/NODEMCU support to Arduino IDE.Single-channel Relay Motor control – Arduino.Install the CH340C Drivers Tutorials For SMD Arduino Uno Board provided with Arduino Multipurpose Kit.If you have any query please write us at and Regards You will need to make sure that you have mentioned correct I2C address in the sketch as highlighted in the following image. Ref- Nick Gammon // I2C Scanner #include void setup ( ) You may download i2c scanner Arduino sketch from here. I2C Scannerĭownload and upload the following code to your Arduino, after uploading open serial monitor and you will find the address of attached i2c devices. The potentiometer on the LCD backpack is to adjust LCD contrast.īefore we go ahead we will need to know the i2c address of our backpack, if you don’t know the same use following step to know. Then make the following connections with Arduino Board. Mount LCD on the i2c LCD backpack as shown above. This tutorial is helpful in using I2C backpack available for LCD. This tutorial explains how to use I2C LCD on Arduino.
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