DFR0342 W5500 with POE cannot use I2C

userHead Account cancelled 2018-11-06 20:59:20 2045 Views0 Replies
I have the DFR0342 Board and wanted to use a GY-30 / BH1750 light sensor.

I tried it using just the wire Library that comes with the Arduino IDE and a library for the BH1750 from here

However the sensor does not work.
When sending any mode it responds with code 3 (NACK).

I tested the sensor with a "normal" Arduino and there it works using the same code.
I also tested the sensor on multiple DFR0342 boards and none of them worked.

How can I get the sensor to work with the DFR0342 board?