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Microcontroller · Development Board
ESP32-C3-DevKitM-1
An entry-level Espressif RISC-V dev board with Wi-Fi and BLE for low-cost connected devices and firmware courses.
Processor
ESP32-C3-MINI-1 RISC-V
Logic
3.3 V GPIO
Power
USB, 5 V input, 3.3 V regulator
Format
Compact breadboard dev kit
Check before wiring
- Fewer pins than classic ESP32 development kits.
- Check USB/JTAG and boot behavior before assigning pins.
Interfaces
GPIOI2CSPIUARTADCPWMUSBWi-FiBluetoothJTAG
Source-backed connector
Interactive pin map
Pin map
Connector
ESP32-C3-DevKitM-1 J1/J3 headers
USB at the bottom, component side up, headers on both edges
Simplified technical illustration. Pin data is source-backed; verify against the linked documentation before wiring.
Hover, tap, or focus a pad to inspect a pin. Use arrow keys to move between pins.
- Official Espressif header tables list these J1 and J3 signals.
- GPIO2, GPIO8, and GPIO9 are strapping pins; avoid external pulls that alter boot mode.
- GPIO18 and GPIO19 carry native USB D- and D+.
All 30 pins (table)
| # | Signal | Role | Net | Also / notes |
|---|---|---|---|---|
| 1 | Ground | GND | ||
| 2 | Power | 3V3 | ||
| 3 | Power | 3V3 | ||
| 4 | System | Strapping | ||
| 5 | GPIO | |||
| 6 | Ground | GND | ||
| 7 | System | |||
| 8 | Ground | GND | ||
| 9 | GPIO | |||
| 10 | GPIO | |||
| 11 | GPIO | |||
| 12 | Ground | GND | ||
| 13 | Power | 5V | ||
| 14 | Power | 5V | ||
| 15 | Ground | GND | ||
| 16 | Ground | GND | ||
| 17 | UART | UART | ||
| 18 | UART | UART | ||
| 19 | Ground | GND | ||
| 20 | System | BOOT / Strapping | ||
| 21 | System | RGB LED / Strapping | ||
| 22 | Ground | GND | ||
| 23 | GPIO | |||
| 24 | GPIO | |||
| 25 | GPIO | |||
| 26 | GPIO | |||
| 27 | Ground | GND | ||
| 28 | Alt | USB_D- | ||
| 29 | Alt | USB_D+ | ||
| 30 | Ground | GND |
Why it matters
- Official documentation includes pin-header tables.
- Good inexpensive board for RISC-V microcontroller labs.
- Small module keeps layouts close to real products.
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