The Shorty40

An ortholinear 39key keyboard with a 2U spacebar and KMK support using a Raspberry Pi Pico

Bill of Materials

Cost Saving Open Build

• Printed circuit board
• Raspberry Pi Pico or clones with same dimensions and GPIO Layouts with male headers attached
• 39 1N4148 Diodes - through hole version
• 39 CherryMX Compatible plate mount switches
• 38 1U Keycaps and 1 2U Keycaps
• 1 2U plate mount stabilizer
• 1 3D Printed key plate
• 1 Laser Cut bottom plate
• 4 M2 Stand-Offs with minimum 20mm clearance
• 8 5mm M2 screws
• 4 adhesive silicone/rubber foot - recommended but not required

Close Case Build

• Printed circuit board
• Raspberry Pi Pico or clones with same dimensions and GPIO Layouts
• 2 20 Pin male headers for the Pi Pico
• 2 20 Pin male to female headers for PCB
• 39 1N4148 Diodes - through hole version
• Hot Swap Sockets - tested with Millmax 0305 Socket
• 39 CherryMX Compatible plate mount switches
• 38 1U Keycaps and 1 2U Keycaps
• 1 2U plate mount stabilizer
• 1 3D Printed key plate
• 1 3D Printed Case - testing in process
• 8 5mm M2 screws
• 4 adhesive silicone/rubber foot

Software Setup

1. Install circuit python
2. Get KMK and unzip the files on to the circuit-python/pi-pico drive
3. Replace the code.py and boot.py files on the Pi-Pico drive with the ones provided on this repository