Seeed Studio XIAO nRF52840 Development Board Bluetooth 5.0

The Seeed Studio XIAO nRF52840 is a compact development board featuring the powerful Nordic nRF52840 MCU, based on the ARM® Cortex™-M4 32-bit processor with FPU, operating at 64 MHz. This Arduino-compatible board supports Bluetooth 5.0, NFC, and ZigBee module with an on-board antenna, making it an ideal choice for TinyML, smart wearable devices, and IoT projects.

Its ultra-small size of 21 x 17.5mm maintains the classic XIAO series form-factor, perfect for wearable and space-constrained applications. The board supports a deep sleep model with 5 μA current consumption and includes lithium battery charge management. The integrated Type-C connector provides convenient power and data transfer.

This development board offers a rich set of interfaces: 1x reset button, 1x UART, 1x IIC, 1x SPI, 1x NFC, 1x SWD, 11x GPIO, 6x ADC, a 3-in-1 LED, and an additional LED. The breadboard-friendly SMD design ensures no components on the back, simplifying prototyping.

Note: All I/O pins operate at 3.3V. To avoid CPU damage, do not apply voltages exceeding 3.3V to any pin.

Specifications

• Processor: ARM Cortex-M4F, 64 MHz
• Wireless: Bluetooth 5.0, NFC, ZigBee module (on-board antenna)
• Operating Voltage: 3.3V (all I/O pins)
• Deep Sleep Current: 5 μA
• Battery Management: Lithium battery charge management
• Dimensions: 21 x 17.5 mm (board only)
• Breadboard-friendly: SMD design, no back components

Ideal for makers and professionals, the Seeed Studio XIAO nRF52840 delivers high performance in a miniature footprint, empowering your next innovative project.