How can I establish communication between two Arduino boards?

How can I establish communication between two Arduino boards?

You can use several methods to communicate between two Arduino boards, such as I2C, SPI, or Serial communication. Which one are you interested in?

I'm interested in using I2C. How does that work?

I2C (Inter-Integrated Circuit) allows multiple devices to communicate using only two wires: SDA (data line) and SCL (clock line). You need to set one Arduino as the master and the other as the slave.

What code do I need to upload to each Arduino?

For the master, you'll use the Wire library to send data, and for the slave, you'll also use the Wire library to receive data. Would you like a sample code?

Yes, please provide the sample code for both.

Sure! Here's a simple example: For the master, use Wire.begin(); to start communication, and for the slave, use Wire.begin(slaveAddress); to set the address. I can provide more details if needed!