After trying to distract me with other work I had to come back to the problem and got it running by now. I think the main problem was timing. Also, the master seems to stop working once it tried to read without the slave having sent anything. One big issue I found was, that I had the ground connecti...

hey, thanks for the reply, sry I should have mentioned that: I am using esp-idf (https://github.com/espressif/esp-idf) tag: v3.2 I am using a BMP180 pressure sensor that works great. But there the ESP32 as master writes and reads maximum 2 Bytes at a time and I read from registers. With the 2nd ESP3...

Hey, for some days I am trying to get an i2c connection between two ESP32 running. After having serious issues with reliability in my main project, I wanted to try around with a simple project. I adapted the example from espressif (https://github.com/espressif/esp-idf/tree/master/examples/peripheral...

thank you so much, the small things...

hey, could you resolve the issue. If so, please share... I am stuck, too