Adafruit CLUE – nRF52840 Express with Bluetooth LE


Adafruit CLUE – nRF52840 Express with Bluetooth LE


SKU: MCR-040 - Mfg Part Number: 4500


The Adafruit Clue is based off the familiar form factor of the BBC micro:bit, but with a TFT display and tons of sensors! Since it has the same edge connector as the micro:bit, the Clue is compatible with your existing robot kit or add-ons.

The Clue features a Nordic nRF52840 Bluetooth LE processor with 1 MB of Flash, 256KB RAM and 64 MHz Cortex M4 processor. It has its own protected onboard regulator and can be powered with 3-6VDC. On the front are two buttons to use as basic inputs and a 1.3” Color IPS TFT display for high resolution text and graphics.

To sense the world around it the Clue has a LSM6DS33 3 axis Accelerometer and Gyroscope, a LIS3MDL Magnetometer, an APDS9960 Proximity, Light, Color, and Gesture Sensor, a microphone, a BMP280 Temperature and Barometric Pressure sensor, and a SHT Humidity Sensor.

If all of that is not enough, there is also an RGB Neopixel LED indicator, 2MB of internal flash storage (for datalogging, images, and code), a buzzer/speaker, two bright white LEDs for illumination and color sensing, and a Qwicc / STEMMA QT connector for adding more sensors.

The Clue is programmable with the Arduino IDE or Circuit Python. At this time there is no MakeCode or Scratch Support.


  • Processor: 64 MHz Cortex M4
  • Storage: 1 MB Chipset, 2 MB Storage
  • Voltage: 3-6VDC
  • Weight: 13.0g / 0.5oz
  • Bluetooth LE
  • LSM6DS33 Accel/Gyro
  • APDS9960 Proximity, Light, Color, and Gesture Sensor
  • SHT Humidity Sensor
  • RGB NeoPixel indicator LED
  • Two bright white LEDs in front for illumination / color sensing
  • RAM: 256KB
  • Display: 1.3″ 240×240 Color IPS TFT
  • Dimensions: 51.7 x 42.2 x 12.3mm
  • Arduino / CircuitPython Compatible
  • LIS3MDL Magnetometer
  • PDM Microphone Sound Sensor
  • BMP280 Temperature and Barometric Pressure/Altitude
  • Buzzer/speaker for playing tones and beeps
  • Qwiic / STEMMA QT connector


Introducing Adafruit CLUE:

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In stock (can be backordered)

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