Hm. Now on the Betz board, I'm getting a recurrence of the original problem I had when I first got it:

- Regardless of whether the board is connected to my assembly and getting 5v from its 5v pin or whether the board is fully disconnected from everything and getting 5v from its built in USB connector...
- When I apply power to the Betz board.
- Instead of its LED lighting up and blinking randomly as it is expected to,
- Its LED blinks a steady slow blink indicating the chip is asleep.
- Pressing the board's RESET button wakes up the board and the chip and everything works then.

Originally this was fixed by setting the built-in switch to the up/left position so that it connects the "BATT" voltage. But the switch is set correctly and I've tested its continuity/resistance and it all looks correct for that switch.