((better)) Download — Wire.h Library For Arduino

: Begins a transmission to the I2C slave device with the specified 7-bit address.

To write efficient code, you need to understand the primary functions provided by the Wire library: download wire.h library for arduino

: Allows your Arduino to talk to sensors, LCDs, and other microcontrollers using just two wires (SDA and SCL) . : Begins a transmission to the I2C slave

Ends a transmission to a slave device that was opened by beginTransmission() and transmits the bytes that were queued by write() . 5. Wire.requestFrom(address, quantity) quantity) For more advanced communication patterns

For more advanced communication patterns, such as using multiple I2C devices simultaneously or implementing a target (slave) device, additional functions such as Wire.beginTransmission() , Wire.endTransmission() , and Wire.onReceive() and Wire.onRequest() callback handlers are essential tools.