I designed this enter button as a alternative to a usual keyboards enter button.

Printing:
The print consists out of three parts: EnterButton1.0, EnterButton1.1 and EnterButton1.2. I printed 1.0 and 1.1 together. Only the 1.1 needs support placed under the 14 mounting holes.
The 1.2 I printed seperately.
Have a look at the .3mf printing files for more information.

Electrical Stuff:
The enter button consists of a adafruit Trinket M0 and a hall sensor. Have a look at the given schematic.

Parts you need:

• USB-Cable: USB A to USB micro B ([https://www.digikey.ch/products/de?keywords=%20Q967-ND](https://www.digikey.ch/products/de?keywords=%20Q967-ND))
• Adafruit Trinket M0 ([https://www.digikey.ch/products/de?keywords=1528-2361-ND](https://www.digikey.ch/products/de?keywords=1528-2361-ND))
• Snappable Protoboard ([https://www.digikey.ch/products/de?keywords=1568-1129-ND](https://www.digikey.ch/products/de?keywords=1568-1129-ND))
• Some wiring cables
• 10k threaded resistor
• Bipolar Hall-Sensor ([https://www.digikey.ch/products/de?keywords=480-1998-ND](https://www.digikey.ch/products/de?keywords=480-1998-ND))
• 4pcs of 2.9 x 9.5mm tapping screws ([https://www.schraubenking.ch/29-x-95mm-Blechschrauben-Linsenkopf-TX-verzinkt-DIN7981-C-P004083](https://www.schraubenking.ch/29-x-95mm-Blechschrauben-Linsenkopf-TX-verzinkt-DIN7981-C-P004083))
• 14pcs of 2.9 x 16mm tapping screws ([https://www.schraubenking.ch/29-x-16mm-Blechschrauben-Linsenkopf-TX-verzinkt-DIN7981-C-P006336](https://www.schraubenking.ch/29-x-16mm-Blechschrauben-Linsenkopf-TX-verzinkt-DIN7981-C-P006336))
• 4pcs of self-adhesive rubber bumper ([https://www.digikey.ch/products/de?keywords=SJ5382-ND](https://www.digikey.ch/products/de?keywords=SJ5382-ND))
• 3pcs of self-adhesive felt slide

• 8pcs of 5 x 5mm magnets ([https://www.supermagnete.ch/scheibenmagnete-neodym/scheibenmagnet-5mm-5mm\_S-05-05-N](https://www.supermagnete.ch/scheibenmagnete-neodym/scheibenmagnet-5mm-5mm\_S-05-05-N)) Software:
  Within the code.py file you get the software. If you are not familiar of how to port it to your trinket M0 have a look at [https://learn.adafruit.com/adafruit-trinket-m0-circuitpython-arduino/circuitpython](https://learn.adafruit.com/adafruit-trinket-m0-circuitpython-arduino/circuitpython) or [https://learn.adafruit.com/vote-keyboard](https://learn.adafruit.com/vote-keyboard).

  Final Size:
  154mm x 110mm x 25mm

  Have fun.

  Print Settings

Printer Brand:

Prusa

Printer:

No

Supports:

200

Infill:

Filamentum PLA Black

Category: Computer