How to Connect Two Arduino Boards Using I2C
What Is I2C? How Does I2C Communication Work? Each gear connected to the I2C bus has a unique address that identifies it during communication. Communication is initiated by the master unit, and incorrect addressing of slave devices can cause errors in transfer. Check out our in-depth guide onhow UART, SPI, and I2C serial communications workto give you some context. Devices that operate at different voltage levels can still communicate effectively with the help of voltage shifters....