I have several Qwiic modules that I’m trying to use with the ESP32 Thing Plus WROOM and I’m not having any success getting the modules to init. I have the [Qwiic joystick and the [CCS811/BME280 combo board. I followed the hookup guides there and nothing is working. I essentially get the same problem with both the env. combo board and the joystick, where it fails running the begin() functions.
For example, if I use the example included in the joystick library “Example4_Joystick_Serial_Output”, I get output of “Joystick does not appear to be connected. Please check wiring. Freezing…”.
Yes, it’s quite a simple setup. I really just plugged them together to load the example codes and learn about the libraries before including these modules in a project.
It’s just the Thing Plus WROOM with a Qwiic wire to either of the modules. I even tried a different wire and still the same problem.
Not sure if this is the issue since I don’t have the boards to play with.
Per the schematic, the ESP32 Thing has SDA on IO23 and SCL on IO22. Per https://randomnerdtutorials.com/esp32-i … duino-ide/, the default pins are SDA = IO21 and SCL on IO22, so you need to specify the different pins directly in the Wire.begin() function. Try Wire.begin(23, 22);
I had this exact same issue with the SparkFun Thing Plus - ESP32 WROOM. Literally was pulling my hair out when I could not get anything in the I2C bus to work.
Why is this not mentioned anywhere on the SparkFun Thing Plus - ESP32 WROOM pages?
I am surprised - I have the new version of the ESP32 Thing Plus WROOM - WRL-15663. I did not have to specify the pin numbers. Is your WROOM the previous version - https://www.sparkfun.com/products/retired/14689? I am wondering why I did not run into this problem.
