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M8P V1.1 I2C

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Someone tried to connect something to the I2C interface to the klipper ?

I'm trying to connect the SHT sensor, but I have a mistake all the time:

MCU 'mcu' shutdown: soft_i2c NACK

[temperature_sensor Test]
#i2c_mcu: mcu
sensor_type: SHT21
i2c_address: 68
#sensor_pin: PA3
i2c_software_scl_pin: PC5
i2c_software_sda_pin: PB0

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