biemster| Quantity | Component name | |
| 1 | × | Waveshare RP2040-Zero |
| 1 | × | INMP441 MEMS microphone |
| 1 | × | 470 Ohm resistor |
| 2 | × | 47 Ohm resistor |
| 1 | × | RJ45 connector, or POE 5v adapter |
Ethernet microphone with PoE (active or passive)
Single MEMS microphone with audio over UDP, using only RP2040 and INMP441 and just 3 resistors! (and an RJ45, plus some more for active PoE)