Logical module connections only. No PCB footprints. Check module pad labels. >NAME >VALUE >NAME >VALUE LTEK AUDIO SYNC SENSOR - DIY v1 RP2040-ZERO ONLY. GPIO labels, not physical pad positions. USB powers RP2040-Zero. GP29 switches one low-power microphone module. Never connect microphone VDD to 5V. No external power. INMP441 module must include local 100nF VDD-GND decoupling. Built-in Zero RGB on GP16. Keep microphone acoustic opening clear. Module wiring schematic only; no PCB manufacturing data. Verify in EAGLE.