Adafruit CLUE - nRF52840 Express with Bluetooth LE

Product ID: 4500
Qty Discount
1-9 $44.95
10-99 $40.46
100+ $35.96


Do you feel like you just don't have a CLUE? Well, we can help with that - get a CLUE here at Adafruit by picking up this sensor-packed development board. We wanted to build some projects that have a small screen and a lot of sensors. To make it compatible with existing projects, we made it the same shape and size as the BBC micro:bit and with the same edge-connector on the bottom with 5 big pads so it will fit into your existing robot kit or 'bit add-on.

While the CLUE looks a bit like a 'bit it has totally redesigned-from-scratch technology:

Please note that at this time there is no MakeCode or Scratch support for the nRF52840 chipset (of course, we’d love to see MakeCode but there is no ETA when it may be added). While the CLUE is the same outline and we did our best to make the edge-connector pins match up, most cases for the 'bit won't fit the CLUE, and code may not be immediately compatible without adjustment, especially since only Arduino and CircuitPython are supported at this time.

The CLUE is designed for projects that use a ton of sensors - and they're all built-in! So you can start exploring your world, measuring, logging, and learning. You can transmit data over Bluetooth to a computer or mobile device for data plotting and logging, or save it to the built-in storage. Why did we call it CLUE? Check out our post!

Play video: NRF52832 Teardown - Collin’s Lab Notes #adafruit #collinslabnotes Play video: New Products 3/18/2020 Featuring #Adafruit HTS221 - #Temperature & #HumiditySensor #BreakoutBoard! Play video: New Products 2/5/2020 Featuring #AdafruitFeather nRF52840 Sense! #Bluefruit


Play video: New Products 1/29/2020 Featuring #AdafruitCLUE - nRF52840 Express with #BluetoothLE - ALPHA!

Technical Details

Revision history:

  • As of March 13, 2020 we've made some changes from the previous ALPHA version to move the screen slightly so its a little more centered, and some components moved around to account for the screen connector move. The design is otherwise identical to ALPHA (hardware, shape, pinout, etc)

Product Dimensions: 51.7mm x 42.2mm x 12.3mm / 2.0" x 1.7" x 0.5"

Product Weight: 13.0g / 0.5oz

RoHS 2 2011 65 EU Compliant
RoHS 2 2015 863 EU Compliant


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