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ESP32-C3 DevKit
EspressifESP32-C3-WROOM-02
Espressif's ESP32-C3 dev board (DevKitC-02): a single-core RISC-V with Wi-Fi + BLE 5 and native USB. Organized by GPIO with key functions below; ADC1 is on GPIO0-4. 3.3V logic.
In stock
Specifications
0No specs listed.
Pinout
19| Pin | Name | Functions | Notes |
|---|---|---|---|
| 3V3 | 3V3 | POWER | 3.3V out |
| 5V | 5V | POWER | 5V (USB) |
| GND | GND | GND | Ground |
| EN | EN | GPIO | Reset/enable |
| 0 | GPIO0 | ADCGPIO | ADC1_CH0; strapping |
| 1 | GPIO1 | ADCGPIO | ADC1_CH1 |
| 2 | GPIO2 | ADCGPIO | ADC1_CH2; strapping |
| 3 | GPIO3 | ADCGPIO | ADC1_CH3 |
| 4 | GPIO4 | ADCSPI | ADC1_CH4; SPI |
| 5 | GPIO5 | ADCSPI | ADC2; MISO |
| 6 | GPIO6 | SPI | SCK |
| 7 | GPIO7 | SPI | MOSI |
| 8 | GPIO8 | GPIO | Onboard LED; strapping |
| 9 | GPIO9 | GPIO | BOOT button; strapping |
| 10 | GPIO10 | GPIO | GPIO |
| 18 | GPIO18 | GPIO | USB D- |
| 19 | GPIO19 | GPIO | USB D+ |
| 20 | GPIO20 | UART | U0 RXD (console) |
| 21 | GPIO21 | UART | U0 TXD (console) |
Interactive pinout
Highlight:
ESP32-C3-WROOM-02
Click a pin to copy its name · tap a tag above to spotlight a bus.
Logic level & voltage
The ESP32-C3 is a 3.3 V part with non-5 V-tolerant GPIOs; power it from 5 V USB (onboard 3.3 V regulator). It is a single-core RISC-V SoC with Wi-Fi and BLE 5.
Typical uses
- Low-cost Wi-Fi/BLE IoT endpoints
- USB-serial CircuitPython/Arduino projects
- Smart-home switches and sensors
Wiring notes & gotchas
- Fewer GPIOs than the WROOM-32 — plan pin budget early.
- USB-Serial/JTAG is on dedicated pins; avoid repurposing them if you need flashing/debug.
- Level-shift any 5 V signal lines.