I’m unable to continue applying the requested PCB/layout revisions because execution credits are exhausted. So far, I confirmed the existing 150 × 90 mm two-layer layout and schematic state, verified the power connectors J4/J5 and capacitor/connector assignments, reassigned the WiFi LED from ESP32 GPIO12 to GPIO14, and updated C1/C2/C3/C4 metadata to specify compact radial electrolytic and small ceramic through-hole footprints with polarity notes. Remaining work: apply/verify the physical footprint regeneration, update silkscreen labels for J1/J2/J3/J4/J5/U2, move/lock components to the 2.54 mm grid, set wide +5V/GND trace rules, route or autoroute the power/ground rails and remaining signals, then run a final layout/ERC/DRC review.
I’m unable to continue making project edits because execution credits are exhausted. So far in this revision I verified the current 150 × 90 mm layout, found J4/J5 already present as screw terminals, confirmed the remaining routing issue was 28 airwires, replaced C1 and C2 with generic radial through-hole 1000 µF / 16 V electrolytic capacitor definitions, and restored their connections to switched +5V and GND.
Remaining work: reassign LED2/WiFi from GPIO12 to GPIO14, update C3/C4 footprints to small through-hole ceramics in the actual layout, apply final connector/rail silkscreen labels, place the newly replaced C1/C2 near the power/MAX98357A sections, enforce/verify 2.54 mm grid placement, apply wide +5V/GND routing rules or traces, reduce remaining airwires, and run final layout/ERC verification.
Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
General Purpose Thick Film Standard Power
and High-Power Chip Resistor
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film
Features:
- RMCF – standard power ratings
- RMCP – high power ratings
- Nickel barrier terminations standard
- Power derating from 100% at 70ºC to zero at +155ºC
- RoHS compliant, REACH compliant, and halogen free
- AEC-Q200 compliant