The XIAO ESP32S3 is a high-performance board powered by an Expressif ESP32-S3R8 chip. With support for 2.4GHz WiFi and low-power Bluetooth® BLE 5.0 dual-mode wireless communication, this board is perfect for high-performance, low-power IoT applications. When connected with the U.FL antenna, the remote communication distance can reach up to 100m. Equipped with a powerful Xtensa® 32-bit LX7 dual-core processor running at up to 240MHz, 8MB PSRAM, and 8MB Flash, the XIAO ESP32S3 is designed to handle multi-demanding tasks with ease. Additionally, the XIAO ESP32S3 supports lithium battery charging management and allows for deep sleep mode with power consumption as low as 14μA. With 4 adjustable power modes, the XIAO ESP32S3 can balance communication distance, data rate, and power consumption to meet the needs of various application scenarios. At just 21 x 17.5mm, the XIAO ESP32S3 is designed with the classic thumb-sized form factor, making it perfect for wearable devices. Its breadboard-friendly and surface-mount design make it ideal for production. Now available with loose headers or pre-soldered -select an option before adding to your cart. Features * Powerful MCU Board: Incorporate the ESP32S3 32-bit, dual-core, Xtensa processor running at up to 240MHz, mounted multiple development ports, Arduino / MicroPython supported * Outstanding RF performance: Supports 2.4GHz WiFi and BLE 5.0 dual wireless communication, supports 100m+ remote communication when connected with U.FL antenna * Elaborate Power Design: Lithium battery charge management capability, offer 4 power consumption model which allows for deep sleep mode with power consumption as low as 14μA * Thumb-sized Compact Design: 21 x 17.5mm, adopting the classic form factor of XIAO, suitable for space-limited projects like wearable devices * Perfect for Production: Breadboard-friendly & SMD design, no components on the back * Product number: * Loose headers: Seeed 113991114 * Pre-soldered: Seeed 102010634 Specifications Processor ESP32-S3R8 Xtensa LX7 dual-core, 32-bit processor running up to 240 MHz Wireless Complete 2.4GHz WiFi subsystem BLE: Bluetooth 5.0, Bluetooth mesh On-chip Memory 8M PSRAM & 8MB Flash Interface 1x UART, 1x IIC, 1x IIS, 1x SPI,11x GPIO(PWM), 9x ADC, 1x User LED, 1x Charge LED 1x Reset button, 1x Boot button Dimensions 21 x 17.5mm Power Input voltage (Type-C): 5V Input voltage (BAT): 4.2V Circuit operating Voltage (ready to operate): - Type-C: 5V@19mA - BAT: 3.8V@22mA Charging battery current: 50mA Low Power Consumption Model Modem-sleep Model: ~ 25 mA (Supply Power: 3.8V) Light-sleep Model: ~ 2mA Deep Sleep Model: ~ 14 μA WiFi Enabled Power Consumption Active Model: ~ 100 mA BLE Enabled Power Consumption Active Model: ~ 85 mA Working Temperature -40°C ~ 65°C Resources * Product Wiki * ESP32-S3 Datasheet Pinout Package Contents * 1x XIAO ESP32S3 (select header variant before adding to cart) * 1x Antenna * 1x Loose Header Set (unsoldered version only) https://elecena.pl/product/23250087/seeed-xiao-esp32s3 2023-04-18 https://elecena.pl/product/23250087/seeed-xiao-esp32s3 2023-06-07 https://elecena.pl/product/23250087/seeed-xiao-esp32s3 2023-12-27 https://elecena.pl/product/23250087/seeed-xiao-esp32s3 2024-09-18 https://elecena.pl/product/23250087/seeed-xiao-esp32s3 2024-11-29 https://elecena.pl/product/23250087/seeed-xiao-esp32s3 2024-11-30 https://elecena.pl/product/23250087/seeed-xiao-esp32s3 2025-11-28 https://elecena.pl/product/23250087/seeed-xiao-esp32s3 2025-11-29