It took a LOT of troubleshooting, and I hit so many dang blockers that I abandoned the project for a number of months.
Finally needing to use these in April this year, I got back to troubleshooting. It really took everything I could throw at it, but I got there in the end.
This video covers what issues I had, how I tested my theories and worked past each issue, and then finally my idea for v1.1 which will be the big finale of this four part series.
Watch in a new tab on Youtube here.
Buy the boards and/or modules from my online shop here.
Watch Inline Here