Hi all. I'm using the Wire library with an Arduino Nano Every, as I2C master. I realized that the byte sent count returned by the .write() method is incorrect. Example: Wire.beginTransmission(address); n = Wire.write(buffer, buffer_size); Wire.endTransmission(); the n variable, as documentation …

@gfvalvo is right, just ignore the return value by Wire.write(). // -------------------------------------------- // Write data over the I2C bus // -------------------------------------------- Wire.beginTransmission(address); Wire.write(buffer, buffer_size); int error = Wire.endTransmission(); if (e…

Wire library and no ack by I2C slave

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system Closed May 13, 2022, 8:56pm 5

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Wire library and no ack by I2C slave

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