A sketch that turns any Arduino into an I2C Slave whose pins can be manipulated by a master.
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Updated
May 18, 2026 - C++
A sketch that turns any Arduino into an I2C Slave whose pins can be manipulated by a master.
Based on my Generic I2C Slave, this adds useful commands in place of reads to pin numbers that are too large to be found on a real device. Commands to control pins, EEPROM, and communicate via serial.
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