Adafruit Industries Adafruit Industries CLUE - nRF52840 Express w/ Bluetooth LE
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. This is the alpha release of the hardware.
Adafruit Industries CLUE - nRF52840 Express w/ Bluetooth LE