Seeed Studio XIAO ESP32-S3
Seeed Studio XIAO ESP32-S3 has a 5-10 day lead time before dispatch. Order will only be sent once all items are available for delivery.
Seeed Studio XIAO ESP32-S3 is a dual-core Wi-Fi and Bluetooth development board built around the ESP32-S3 chip, packed into the classic 21 x 17.8mm XIAO form factor. It runs a Xtensa LX7 dual-core 32-bit processor at up to 240 MHz and is supported by Arduino and MicroPython, giving it plenty of headroom for more demanding IoT and wireless projects.
Unsoldered for Custom Builds
This is the base version of the XIAO ESP32-S3, supplied without headers soldered on. That makes it a better fit if you're planning to solder it directly into a custom PCB, use it in a low-profile or space-constrained enclosure, or simply prefer to choose your own header type and orientation. If you'd rather skip the soldering step entirely, we also stock a pre-soldered version, ready to plug straight into a breadboard.
Wi-Fi and Bluetooth with Long Range
The board includes a complete 2.4GHz Wi-Fi subsystem alongside Bluetooth Low Energy 5.0, and supports communication over 100m or more when connected to a U.FL antenna. Power management offers four modes, with deep sleep consumption as low as 14 μA, plus built-in lithium battery charge management for portable projects.
Thumb-Sized and Production-Ready
At 21 x 17.8mm, it keeps the classic XIAO footprint with single-sided component mounting, and its breadboard-friendly SMD design with no components on the back makes it easy to work with on the bench or integrate into a finished product.
Specifications
| Processor | ESP32-S3R8, Xtensa LX7 dual-core 32-bit, up to 240 MHz |
| Wireless | 2.4GHz Wi-Fi, Bluetooth Low Energy 5.0, Bluetooth Mesh |
| On-chip Memory | 8MB PSRAM, 8MB flash |
| Interface | 1x UART, 1x I2C, 1x SPI, 11x GPIO (PWM), 9x ADC, User LED, Charge LED, Reset Button, Boot Button |
| Dimensions | 21 x 17.8mm |
| Power | 5V via Type-C, 3.7V via BAT, 50mA (fast) / 3.8mA (trickle) charging |
| Low Power Modes | 27mA modem-sleep, 2mA light-sleep, 14 μA deep sleep |
| Wi-Fi Active Power | 220mA |
| BLE Active Power | 217mA |
| Working Temperature | -40°C to 65°C |
Pinout

Resources
- Seeed Studio Wiki, full setup guides, pinout diagrams, and project examples
- ESP32-S3 Datasheet
- Browse our full range of XIAO Expansion & Breakout Boards
An onboard antenna is included, though if you need extra range for your project, our 2.4GHz Wi-Fi Antenna is compatible with the XIAO ESP32-S3. Prefer plug-and-play? Grab the pre-soldered XIAO ESP32-S3 instead.
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