A very low cost board, I will consider using it as my new bread and butter for custom low cost solutions. And with platformio it got even better. Keep up the good work
Be careful of your sources.
I first bought a batch of 4 and couldn’t figure out why none of them lived…blamed myself. I ordered 4 more. Loaded blink and let it run. Within 48 hrs it was dead.
My suspicion is they were built with rejected parts.