Seeed XIAO nRF52840 Plus

The Seeed Studio XIAO nRF52840 Plus is a compact Bluetooth development board built around the Nordic nRF52840 chipset. This Plus variant builds on the original XIAO nRF52840 by introducing an updated castellated layout and additional back-side pads, increasing the total GPIO count to 20 for use in more demanding Bluetooth-based projects. It retains all the core features of the standard version, including USB-C power/programming, integrated Li-ion battery charging, Bluetooth 5.0, NFC capability, low power consumption, and compatibility with Arduino, MicroPython, and CircuitPython. The board is ideal for compact wireless devices requiring high performance and extended I/O support through SMD integration. Please note that Seeed XIAO Plus boards don't come with pin headers as it's designed for SMD board-to-board soldering, however we sell a set of XIAO headers in the store if you need them. Features

* Nordic nRF52840 SoC with FPU support

* Bluetooth 5.0 and NFC connectivity

* 20 total GPIOs (with added rear SMD castellations)

* Ultra-low power design

* Compatible with Arduino, MicroPython, and CircuitPython

* Designed for compact Bluetooth projects

Specifications

Processor Nordic nRF52840, ARM® Cortex®-M4 32-bit processor with FPU, 64 MHz

Wireless Connectivity Bluetooth 5.0 / BLE / NFC

Memory 256KB RAM, 1MB Flash, 2MB onboard Flash

Interfaces 1x I2C, 2x UART, 2x SPI, 1x I2S

PWM/Analog Pins 20 / 6

Onboard Buttons Reset Button

Onboard LEDs 3-in-one LED / Charge LED

Battery Charge Chip BQ25101

Programming Languages Arduino / MicroPython / CircuitPython

Product number Seeed 102010672

Resources

* Getting Started with Seeed Studio XIAO nRF52840 Series

* Schematic

* Nordic nRF52840 Data Sheet

Pinout

Package Contents

* 1 x Seeed XIAO nRF52840 Plus

Headers are not included