Seeed Studio · ESP32
Seeed XIAO ESP32-C3
A thumbnail-sized Wi-Fi/BLE board with a proper LiPo charger and external-antenna connector. Small, tidy and battery-friendly.
Wi-FiBLE3.3 V logicTiny
Typical price
$5
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Specifications
| Maker | Seeed Studio |
|---|---|
| Chip | ESP32-C3 |
| CPU | RISC-V single-core |
| Clock speed | 160 MHz |
| Wi-Fi | Wi-Fi 4 (802.11 b/g/n) |
| Bluetooth | Bluetooth 5 (LE) |
| Zigbee / Thread radio | No |
| GPIO pins | 11 usable |
| ADC | 4 channels, 12-bit |
| DAC | None |
| Flash | 4 MB |
| RAM | 400 KB |
| Logic level | 3.3 V |
| Power input | 5V USB-C / LiPo |
| Deep sleep (typ.) | ~43 µA |
| Active current (typ.) | ~60 mA |
| Form factor | Tiny |
| USB | USB-C (native) |
| Programming | Arduino, MicroPython, CircuitPython, ESP-IDF |
| Released | 2022 |
Typical values. Sleep current is approximate; whole-board numbers are higher than the bare chip's datasheet figure.
Pros
- Tiny, with a LiPo charger on board
- External antenna connector for better range
- Very good price and documentation
Cons
- Only 11 GPIO
- Single core at 160 MHz
- Pads on the back are hard to solder
Best use cases
- 01Wearable and tiny IoT sensors
- 02Battery-powered Wi-Fi nodes
- 03BLE beacons and tags
- 04Smart-home add-ons
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