I2C Communication
I²C uses only two bidirectional open-drain lines, Serial Data Line (SDA) and Serial Clock Line (SCL), pulled up with resistors.[5] Typical voltages used are +5 V or +3.3 V, although systems with other voltages are permitted. It uses the WIRE library with Arduino.
I2C( connected through Pins A4 and A5 on the Arduino) enables multiple advanced sensors and displays to be used with the Arduino to communicate complex data using only 2 wires
I2C Reference
https://www.arduino.cc/en/Reference/Wire
I2C( connected through Pins A4 and A5 on the Arduino) enables multiple advanced sensors and displays to be used with the Arduino to communicate complex data using only 2 wires
I2C Reference
https://www.arduino.cc/en/Reference/Wire