Next steps shows how the master (Arduino) reads from the slave I2C device. Wire.requestFrom(address, 1) command expects to receive 1 byte of data from the TC74 sensor. Wire.available() waits for data ...

Now to the hardware setup that consists of an Arduino Uno and a 128 × 64 I 2 C OLED display. The OLED display used is a 5-V tolerant type with just four pins: VCC, GND, SDA, and SCL. You can, of ...

[Johngineer] found himself in need of an I2C sniffer, but didn’t have one available. Necessity is the mother of invention, so he put together this I2C sniffer sketch for Arduino. The arduino … ...