For the first test, and by disconnecting all wires from the breadboard and leaving only the resistor, I do get 943Ω and 940Ω for yellow-to-green_line and yellow-to-red_line.
When I disconnect the bela from the breadboard, but the mic is connected, those values drop to 475Ω.
When I connect -everything- and turn on the bela, I did 2 measurements:
- Between GND (from the mic) and bela Micbias TP2 there are 0V (0.01V)
- Between the green wire (AUDIO IN L) and bela Micbias Tp2 there are also 0V (0.01V)
Edit: tested on both wires (red and green), same results on both.