Seeed Studio · ESP32
Seeed XIAO ESP32-S3
A dual-core, 8 MB-PSRAM ESP32-S3 in a thumbnail — available as a Sense version with camera and microphone for tiny vision projects.
Wi-FiBLE3.3 V logicTiny
Typical price
$7.50
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Specifications
| Maker | Seeed Studio |
|---|---|
| Chip | ESP32-S3R8 |
| CPU | Xtensa LX7 dual-core |
| Clock speed | 240 MHz |
| Wi-Fi | Wi-Fi 4 (802.11 b/g/n) |
| Bluetooth | Bluetooth 5 (LE) |
| Zigbee / Thread radio | No |
| GPIO pins | 11 usable |
| ADC | 9 channels, 12-bit |
| DAC | None |
| Flash | 8 MB |
| RAM | 512 KB + 8 MB PSRAM |
| Logic level | 3.3 V |
| Power input | 5V USB-C / LiPo |
| Deep sleep (typ.) | ~14 µA |
| Active current (typ.) | ~80 mA |
| Form factor | Tiny |
| USB | USB-C (native) |
| Programming | Arduino, MicroPython, CircuitPython, ESP-IDF |
| Released | 2023 |
Typical values. Sleep current is approximate; whole-board numbers are higher than the bare chip's datasheet figure.
Pros
- Dual-core S3 in a tiny package
- Excellent deep-sleep current for its class
- Sense variant adds camera, mic and SD
Cons
- Only 11 pins on the headers
- Small board gets warm under Wi-Fi load
- Antenna is tiny — use the external connector for range
Best use cases
- 01Tiny camera and ML projects (Sense)
- 02Wearables
- 03Compact IoT nodes
- 04Voice triggers
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