Document data pin: GPIO 2

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2026-10-08 20:17:05 -04:00
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@@ -27,12 +27,13 @@ Personal build of [Minecraft Ore Lamp (WLED / ESP32 D1 Mini USB-C)](https://make
- Strip 5 V ties to board 5V/VIN pin, common GND; no second power source. - Strip 5 V ties to board 5V/VIN pin, common GND; no second power source.
## Wiring ## Wiring
- Data: C3 GPIO (verify actual pin used) → first segment DIN (arrow/input end). - Data: C3 **GPIO 2** → first segment DIN (arrow/input end).
- Chain: each segment's DOUT → next segment's DIN; 5 V and GND daisy-chained hop to hop. - Chain: each segment's DOUT → next segment's DIN; 5 V and GND daisy-chained hop to hop.
- Layout: three segments (8+8+4) arranged to fit the printed LED bay of the base. - Layout: three segments (8+8+4) arranged to fit the printed LED bay of the base.
- Data pin: **ESP32-C3 GPIO 2** (confirmed), set in WLED LED Preferences.
## Build log ## Build log
- **2026-10-08** — Strip identified: 3-wire, individually addressable, cut lines every LED → 5 V WS2812B. - **2026-10-08** — Strip identified: 3-wire, individually addressable, cut lines every LED → 5 V WS2812B. Data pin: GPIO 2.
- First wiring (4×5): only LED 1 lit → wire overhung a solder pad and crossed an LED leg (short). Fixed. - First wiring (4×5): only LED 1 lit → wire overhung a solder pad and crossed an LED leg (short). Fixed.
- Random single-LED color changes → loose connection. Rebuilt as 2×8 + 1×4 with cleaner routing; 10-min soak test clean. - Random single-LED color changes → loose connection. Rebuilt as 2×8 + 1×4 with cleaner routing; 10-min soak test clean.
- No series resistor or capacitor needed at 20 LEDs; WLED defaults fine. Add 330 Ω data resistor only if glitches return. - No series resistor or capacitor needed at 20 LEDs; WLED defaults fine. Add 330 Ω data resistor only if glitches return.