ESP32 WIRING BUILDER
Pick the parts.
Get the pins.
Choose a board and the parts in your project. The builder suggests a clean GPIO layout and flags the important things to double-check.
● Built locally — no project data is uploaded
- 1Board
- 2Parts
- 3Wiring
STEP 1
Choose your ESP32.
STEP 2
What are you connecting?
Select everything in the project. Shared buses such as I²C use the same pins automatically.
STEP 3
Your suggested wiring.
GPIO numbers are suggestions, not physical header positions. Match each GPIO to the labels printed on your exact board.
| Part | Signal | GPIO | Note |
|---|
Ready.
Power notes you should not skip
3.3 V is for logic, not heavy loads.
Do not power LED strips, servos, motors or large relays from an ESP32 3.3 V pin. Use a suitable external supply and connect grounds together when the signal requires a common reference.
Do not power LED strips, servos, motors or large relays from an ESP32 3.3 V pin. Use a suitable external supply and connect grounds together when the signal requires a common reference.