Build Season 2026 is live: Publish a build to win M5Stack hardwareBuild Season 2026 is live

Seeed Studio XIAO nRF52840

Seeed Studio XIAO nRF52840 — Seeed Studio — 11041
Availability
In stock

Thumb-sized BLE 5.0 and NFC development board with a 64 MHz Arm Cortex-M4F (nRF52840), supported by Arduino and CircuitPython. No onboard sensors; paired sibling XIAO nRF52840 Sense adds IMU and microphone.

Pinout

Logical pinout · physical placement not verified
SEEED STUDIO XIAO NRF55VD4SDAGNDD5SCL3V3D6TXD0A0D7RXD1A1D8SCKD2A2D9MISOD3A3D10MOSI
  • 5VXIAO edge pad

    VBUS power input/output

    Type · PowerVoltage · 5V / VBUS
  • GNDXIAO edge pad

    Ground

    Type · GroundVoltage · 0V
  • 3V3XIAO edge pad

    3.3V output to peripherals

    Type · PowerVoltage · 3.3V
  • D0A0XIAO edge pad, P0.02

    GPIO, analog input AIN0

    Type · GPIO, AnalogVoltage · 3.3V logic
  • D1A1XIAO edge pad, P0.03

    GPIO, analog input AIN1

    Type · GPIO, AnalogVoltage · 3.3V logic
  • D2A2XIAO edge pad, P0.28

    GPIO, analog input AIN4

    Type · GPIO, AnalogVoltage · 3.3V logic
  • D3A3XIAO edge pad, P0.29

    GPIO, analog input AIN5

    Type · GPIO, AnalogVoltage · 3.3V logic
  • D4SDAXIAO edge pad, P0.04

    GPIO, I2C data, analog input AIN2

    Type · GPIO, I2CVoltage · 3.3V logic
  • D5SCLXIAO edge pad, P0.05

    GPIO, I2C clock, analog input AIN3

    Type · GPIO, I2CVoltage · 3.3V logic
  • D6TXXIAO edge pad, P1.11

    GPIO, UART transmit

    Type · GPIO, UARTVoltage · 3.3V logic
  • D7RXXIAO edge pad, P1.12

    GPIO, UART receive

    Type · GPIO, UARTVoltage · 3.3V logic
  • D8SCKXIAO edge pad, P1.13

    GPIO, SPI clock

    Type · GPIO, SPIVoltage · 3.3V logic
  • D9MISOXIAO edge pad, P1.14

    GPIO, SPI MISO

    Type · GPIO, SPIVoltage · 3.3V logic
  • D10MOSIXIAO edge pad, P1.15

    GPIO, SPI MOSI

    Type · GPIO, SPIVoltage · 3.3V logic

Start wiring

UART · SPI · 3.3 V · 5 V · Breakout

Seeed describes MDBT50Q-1M and MDBT50Q-P1M as Bluetooth 5.0 / BLE modules based on Nordic nRF52840, with GPIO, SPI, UART, I2C, I2S, PWM, …

Module pins: 5V, GND, 3V3, D0 / A0, D1 / A1, D2 / A2, D3 / A3, D4 / SDA. Schematik maps them to your board in the app.

Bluetooth

70 other options

BLE 5-era modules (nRF52840, MDBT50Q), XIAO MG24 boards with Matter-over-Thread, Bluefruit UART/SPI bridges, HM-11 serial modules, and BLE sniffers cover different jobs and different hosts.

View all 70

Related groups

4 groups

Cellular

Adafruit FONA GSM breakouts, the Gravity Air780EU 4G Cat 1 module, Dragino NB-IoT Shield-B8, Pycom FiPy, Quectel and SIMCom M.2 5G modems, and the RockBLOCK 9603 Iridium modem each target a different network tier.

Wireless & comms · Cellular · 58 parts

GNSS & GPS

Adafruit Ultimate GPS (PA1616S/PA1616D), NEO-6M and NEO-M9N u-blox breakouts, Gravity GNSS BeiDou boards with I2C/UART, and 4G or LoRa RTK kits — accuracy and constellation requirements split them.

Wireless & comms · GNSS & GPS · 68 parts

LoRa & RF

RFM95W and SX1262 LoRa transceivers, Wio-E5 LoRaWAN modules, SX1302 gateways, Digi XBee mesh radios, 433 MHz ASK serial links, Dragino IoT sensor nodes, and the SDRplay RSP2 wideband SDR receiver.

Wireless & comms · LoRa & RF modules · 94 parts

Networking

ESP8285, ATWINC1500, and EMW3060 Wi-Fi modules; the WIZ5500 Ethernet co-processor; the DP83848 RMII PHY board; 802.11n USB adapters for the Pi; and an XBee USB configuration adapter.

Wireless & comms · Wi-Fi & networking · 26 parts