Pololu QTRX-MD-13RC I2C compatibility

Hi All,

I am having a bit of a problem trying to get a QTRX-MD-13RC to work with a ESP32 Wrover via a PCF8575. Has anyone had any success in doing this?

If not is there an I2C equivalent of the QTRX-MD-13RC?


Unfortunately, we do not have an I²C version of our QTR sensors and do not know of any resources specific to using them with the ESP32 Wrover or an I/O extender. Our Arduino library and examples might be a helpful reference. If you post the simplest version of your code that demonstrates the issue (i.e. simplify it to just the part that communicates with the sensor), we might be able to see if there are any obvious issues.