ESP32-C3 USB-C Dev Board
1 Pack - ($8.99ea)
$8.99 NZD
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$8.99 NZD
ESP32-C3 USB-C Dev Board
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Urban $40
Rural $60
The ESP32-C3 SuperMini USB-C is an ultra-compact WiFi and Bluetooth 5 BLE development board built around Espressif's RISC-V ESP32-C3 chip. It is ideal for compact IoT projects, ESPHome, sensors, BLE beacons, smart home devices, and battery-powered wireless builds.
- ESP32-C3 RISC-V processor running up to 160MHz
- Built-in 2.4GHz WiFi and Bluetooth 5 BLE
- USB-C programming and power connection
- Compact SuperMini footprint, around 22.5 × 18mm
- Compatible with Arduino IDE, MicroPython, ESP-IDF, and ESPHome
Quick Start
1
Install Arduino IDE
Download and install the Arduino IDE if you do not already have it.
2
Install ESP32 board package
Add the ESP32 Board Manager URL and install “esp32 by Espressif Systems”.
3
Select board
Go to Tools → Board → ESP32 Arduino → ESP32C3 Dev Module.
4
Use a data USB-C cable
Charge-only cables will not upload sketches or detect the board.
Please note: GPIO pins operate at 3.3V logic only and are not 5V tolerant. Headers are supplied unsoldered so you can fit them to suit your project.
Specifications
ChipEspressif ESP32-C3
Architecture32-bit RISC-V single core
CPU SpeedUp to 160 MHz
SRAM400 KB
Flash Memory4 MB
WiFi802.11 b/g/n 2.4GHz
BluetoothBluetooth 5 BLE
GPIO11 exposed GPIO pins
ADC6 pins, 12-bit resolution
USB ConnectorUSB-C for programming and power
Logic Level3.3V, not 5V tolerant
Onboard LEDBlue LED on GPIO8
ButtonsBOOT on GPIO9 and RESET
DimensionsApprox. 22.5 × 18mm
Please note: All GPIO are 3.3V only. Use a level shifter when connecting to 5V sensors or modules.
Getting Started
1
Install Arduino IDE
Download and install the Arduino IDE if you do not already have it.
2
Add ESP32 Board Manager URL
Go to File → Preferences → Additional Board Manager URLs and add the Espressif ESP32 package URL.
3
Install ESP32 boards
Open Boards Manager, search “esp32 by Espressif Systems”, then install the package.
4
Select ESP32C3 Dev Module
Go to Tools → Board → ESP32 Arduino → ESP32C3 Dev Module.
5
Enable CDC on Boot
Set Tools → CDC on Boot → Enabled for USB-C serial monitor output.
6
Select port and upload
Use a data-capable USB-C cable and select the detected COM/serial port.
Please note: If uploading fails, hold BOOT, press RESET, then release BOOT to enter download mode.
What's Included
1×
ESP32-C3 SuperMini USB-C development board
Compact WiFi and Bluetooth 5 BLE development board for IoT, ESPHome, Arduino, and MicroPython projects.
2×
8-pin header strips
Supplied unsoldered so you can solder the headers in the orientation that suits your project.
Please note: USB-C cable is sold separately unless otherwise stated.
Common Uses
ESPHome and Home Assistant compact sensor nodes
IoT data logging for temperature, humidity, and environment monitoring
Bluetooth 5 BLE beacons, proximity sensors, and wireless controllers
MQTT-based remote monitoring and cloud-connected projects
Battery-powered sensors using deep sleep for low current draw
Replacing Arduino plus WiFi shield setups with one compact board
Please note: This board is best suited for compact 3.3V projects where WiFi, BLE, and small size matter.
Common Questions
Are the GPIO pins 5V tolerant?
No. All GPIO pins are 3.3V only. Do not apply 5V directly to any GPIO pin.
Why does my Serial Monitor show nothing?
Go to Tools → CDC on Boot and set it to Enabled. This is required for direct USB-C serial output.
Can I use this with ESPHome?
Yes. Select ESP32-C3 as the platform in ESPHome. It works well for compact smart home sensors and WiFi nodes.
Are the headers already soldered?
No. The headers are supplied unsoldered so you can fit them upright, downward, or omit them depending on your project.
Please note: GPIO8 is shared with the onboard blue LED, and GPIO9 is used by the BOOT button.
GPIO Pinout
All GPIO operate at 3.3V logic and are not 5V tolerant. All exposed GPIO support PWM.
Please note: Always check your wiring before powering the board, especially when using external sensors or modules.