I recently started preparing to teach Unit 6. I have been having a lot of trouble reliable connecting my Adafruit Circuit Playground Express to the Maker App. I did try download and updated the circuit with the firmata found at this link:
The board worked for one day and now on setup fails the board connectable step. I tried everything - reinstalling the firmata again, a new circuit, a new wire - no luck.
I was planning on starting Unit 6 next week. Any help would be appreciated!