I2C Slave

github.comsite

Uses the Pyboard's I2C slave mode to implement a full duplex asynchronous link. Principal use case is for ESP8266 which has only one UART.

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MicroPython

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2026-10-10

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MicroPython › Libraries > Communications > Serial: “Uses the Pyboard's I2C slave mode to implement a full duplex asynchronous link. Principal use case is for ESP8266 which has only one UART.”