Hello,
I'm trying to connect an MPR121 Touch Sensor to the MKR1010 but am having a bit of trouble figuring out the pin layout. I've done this before using an Uno but don't know where to find the proper wiring diagrams for what I am looking for in regards to this board.
Where are the I2C SDA and I2C SDL pins? On an Uno, they are A4 and A5.
Thank you.
Also, not sure what's going on, but when I upload my working code (tested on the Uno) to this board.. I lose my COM port connection via the Arduino IDE. I have to double-click the reset button to get it back and re-upload a separate sketch (such as the default blink to get it back).
Is this an incompatibility with the MPR121 library?
I2C pins are 12 for SCL and 11 for SDA.
It seems like the sketch is making the board crash if you need to double tap the reset button.
UPDATE:
Figured it out... My issue was that A) I had a ported/modified MPR121 library I was reusing (not the latest, official Adafruit MPR121 repo) and B) I had to swap out some definitions for bit-shifting using this SAMD architecture. I'm now able to re-build my sketch and it's reading the sensor values.
Thank you for confirming the I2C SCL/SDApins. The Uno also has separate SCL/SDA pins but the I2C lines are on A4/A5.