Promicro nicenano nrf52840 dongle case with reset button

My remix of good dongle model by Lee.
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updated October 30, 2025

Description

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This is my remix of already nice model by Lee. Main change is adding button to the dongle.

You need small SMD button 4*4*1.5mm, as shown on photos. 

Just cut two legs from the right side, and solder two left legs direct to RST and GND pins on the board. Dont use to much solder, otherwise it will prevent lid to close, amount shown on photo is completely enough. You will maybe need to slightly bend legs to best fit distance between pins (check pictures to see how in should look).  

 

Model origin

The author remixed this model.

Differences of the remix compared to the original

  1. Added cutout in dongle lid to fit reset button soldered to plate
  2. Case height is slightly reduced (-0.5mm) to best fit without dangling
  3. Added small chamfer to all edges to make them less sharp
  4. Lid latches are made a little smaller and rounded to easier snap in place

License