From 0ffb02baf3d7a9b0287f42a1f93c3850274140fa Mon Sep 17 00:00:00 2001
From: Rob <1+ledadmin@noreply.localhost>
Date: Thu, 8 Oct 2026 20:17:05 -0400
Subject: [PATCH] Document data pin: GPIO 2

---
 README.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 95bdcfb..6052a29 100644
--- a/README.md
+++ b/README.md
@@ -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.
 
 ## 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.
 - 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
-- **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.
 - 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.