
Entry-level development board based on ESP32-C3-MINI-1 or ESP32-C3-MINI-1U; 2.4GHz Wi-Fi and Bluetooth LE. Most I/O pins are broken out on both sides for breadboard or jumper-wire prototyping.
| Pin | Position | Type |
|---|---|---|
| 1 GND | 8 | Ground |
| 2 3V3 | 9 | Unknown |
| 3 3V3 | 10 | Unknown |
| 4 IO2 | 11 | GPIO |
| 5 IO3 | 12 | GPIO |
| 6 GND | 13 | Ground |
| 7 RST | 14 | Unknown |
| 8 GND | 15 | Ground |
| 9 IO0 | 16 | GPIO |
| 10 IO1 | 17 | GPIO |
| 11 IO10 | 18 | GPIO |
| 12 GND | 19 | Ground |
| 13 5V | 20 | Unknown |
| 14 5V | 21 | Unknown |
| 15 GND | 22 | Ground |
| 1 GND | 23 | Ground |
| 2 TX | 24 | GPIO |
| 3 RX | 25 | GPIO |
| 4 GND | 26 | Ground |
| 5 IO9 | 27 | GPIO |
| 6 IO8 | 28 | GPIO |
| 7 GND | 29 | Ground |
| 8 IO7 | 30 | GPIO |
| 9 IO6 | 31 | GPIO |
| 10 IO5 | 32 | GPIO |
| 11 IO4 | 33 | GPIO |
| 12 GND | 34 | Ground |
| 13 IO18 | 35 | GPIO |
| 14 IO19 | 36 | GPIO |
| 15 GND | 37 | Ground |
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