Product description: Seeed Xiao nRF52840 Plus - Arduino / MicroPython - Bluetooth 5.0 with built-in antenna - Seeedstudio 102010672
Xiao nRF52840 Plus is an improved version of the well-known Xiao module , equipped with a powerful Nordic nRF52840 microcontroller with ARM Cortex-M4 core and FPU unit . The board supports Bluetooth 5.0 with NFC , and also has an efficient power management system with deep sleep mode and the ability to charge Li-Ion batteries . Thanks to a new pad layout on the bottom and an additional set of 9 SMD pins, the Plus version gives access to 20 GPIO , offering more options for advanced embedded projects. The module is fully compatible with Xiao accessories, and thanks to the classic 21 x 17.8 mm format, it is great for portable projects and production systems.

Seeed Xiao nRF52840 Plus - Arduino / MicroPython - Bluetooth 5.0 with built-in antenna - Seeedstudio 102010672.

Xiao nRF52840 Plus is an improved version of the well-known Xiao module, equipped with a powerful Nordic nRF52840 microcontroller with an ARM Cortex-M4 core and an FPU unit.
Special Features
- Nordic nRF52840 microcontroller : 32-bit ARM Cortex-M4, clocked at 64 MHz, with FPU
- Wireless connectivity : Bluetooth 5.0 (BLE) with built-in antenna and NFC
- Extended I/O : 20 GPIOs (including 9 additional SMD pins with a pitch of 1.27 mm)
- Support for multiple programming languages : Arduino, MicroPython, CircuitPython
- Battery charging support : integrated BQ25101 chip (Li-Ion)
- Xiao's compact size : only 21 x 17.8 mm - perfect for miniature projects
- Compatibility with Xiao accessories : sensors, interfaces (LoRa, CAN, RS485), displays
- Low power consumption : only 5 µA in deep sleep mode
Practical applications
The Xiao nRF52840 Plus module is a perfect solution for modern wireless projects that require compactness, flexibility and energy efficiency. It is perfect for wearable devices, IoT sensors, wireless controllers, embedded projects and industrial applications where reliable connectivity and a multitude of GPIOs in a limited space are important.

The module is fully compatible with Xiao accessories, and thanks to the classic 21 x 17.8 mm format, it is perfect for portable projects and production systems.
Technical specification of the board
- Microcontroller: Nordic nRF52840, ARM Cortex-M4F, 64 MHz, FPU
- RAM: 256 KB
- Flash Memory: 1MB (MCU)
- Board Memory: 2 MB QSPI Flash
- Connectivity: Bluetooth 5.0 (BLE), NFC
- Interfaces: 1x I2C, 2x UART, 2x SPI, 1x I2S
- Number of GPIOs: 20 (including 9 SMD with a pitch of 1.27 mm)
- Analog inputs: 6
- PWM support: yes
- Button: Reset
- LED diodes: RGB 3in1 + charging diode
- Charging system: BQ25101 (for Li-Ion batteries)
- Power supply: 3.3V or via USB Type-C
- Programming Compatibility: Arduino, MicroPython, CircuitPython
- Dimensions: 21 x 17.8 mm
