【MicroPython】ESP32开始支持硬件I2C方式了

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【MicroPython】ESP32开始支持硬件I2C方式了 [复制链接]

 

昨天，ESP32分支发布新的更新，开始支持硬件I2C方式了。

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    from machine import Pin, I2C


    # construct a software I2C bus
    i2c = I2C(scl=Pin(5), sda=Pin(4), freq=100000)


    # construct a hardware I2C bus
    i2c = I2C(0)
    i2c = I2C(1, scl=Pin(5), sda=Pin(4), freq=400000)

    i2c.scan()              # scan for slave devices

    i2c.readfrom(0x3a, 4)   # read 4 bytes from slave device with address 0x3a
    i2c.writeto(0x3a, '12') # write '12' to slave device with address 0x3a