I2C CONNECTION WEMOS D1 R1 <---> ARDUINO 1



  • Hi guys,
    I'm trying to connect via i2c a wemos D1 R1 and a Arduino 1, I've tried the sketch using 2 arduino and it run correctly , but when I use a D1 R1 instead the second arduino 1 never happens. For the i2c in wemos D1 I use gpio04 and gpio05.
    Any suggestion is appreciated

    thanks



  • It's very difficult to say anything with the information you provided. We don't know what your connections are, we don't know what code you are running, we don't even know what environment and libraries you are using on the D1 Mini.

    What I would recommend in this situation is to get one of those cheap logic analyzers and try to see what signals there are on the bus lines.


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