The ESP32 Devkit V1 is a Wi‑Fi/Bluetooth-capable ESP32 development board that provides access to multiple GPIO pins for digital input/output and serial communication. It also exposes analog input pins (VP/VN) for ADC measurements and UART pins (e.g., TX0/RX0 and TX2/RX2) for serial data. Power is typically provided via VIN or the onboard 3V3 supply with a common GND, and EN is used for enabling/reset control.
| Pin | Signal | Description |
|---|---|---|
VIN |
power | top edge header hole, leftmost labeled VIN |
GND |
ground | top edge header hole labeled GND |
D13 |
digital | top edge header hole labeled D13 |
D12 |
digital | top edge header hole labeled D12 |
D14 |
digital | top edge header hole labeled D14 |
D27 |
digital | top edge header hole labeled D27 |
D26 |
digital | top edge header hole labeled D26 |
D25 |
digital | top edge header hole labeled D25 |
D33 |
digital | top edge header hole labeled D33 |
D32 |
digital | top edge header hole labeled D32 |
D35 |
digital | top edge header hole labeled D35 |
D34 |
digital | top edge header hole labeled D34 |
VN |
analog | top edge header hole labeled VN |
VP |
analog | top edge header hole labeled VP |
EN |
digital | top edge header hole labeled EN |
3V3 |
power | bottom edge header hole labeled 3V3 |
GND.1 |
ground | bottom edge header hole labeled GND |
D15 |
digital | bottom edge header hole labeled D15 |
D2 |
digital | bottom edge header hole labeled D2 |
D4 |
digital | bottom edge header hole labeled D4 |
RX2 |
TX | bottom edge header hole labeled RX2 |
TX2 |
TX | bottom edge header hole labeled TX2 |
D5 |
digital | bottom edge header hole labeled D5 |
D18 |
digital | bottom edge header hole labeled D18 |
D19 |
digital | bottom edge header hole labeled D19 |
D21 |
digital | bottom edge header hole labeled D21 |
RX0 |
RX | bottom edge header hole labeled RX0 |
TX0 |
TX | bottom edge header hole labeled TX0 |
D22 |
digital | bottom edge header hole labeled D22 |
D23 |
digital | bottom edge header hole labeled D23 |
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