Sigmapad pcb

sigmaboard

My hackclub blueprint keyboard

Contains:

• 3 separate printed parts

• 4 M3 bolts and 4 inserts

• 6 keys total

• 128x32 OLED screen

• 2 WS2812B RGB LEDs as underglow beneath the keys and the slits on the right

• 1 XIAO RP2040

• 6 diodes

• a very cool name

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  CAD: 3 parts: a bottom case, a middle plate to define the keyholes, and a top cover which has slits to let LEDs shine through, keyspaces, and an opening for the OLED

WITHOUT 3rd LAYER:

WITHOUT 3RD AND 2ND layer:

(made in fusion360)

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PCB and Schematic:

PCB:

Schematic:

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FIRMWARE: Sigmaboard uses QMK. Keys act as arrow keys, with the two oriented on the right in a stack operate as "enter" and "shift"(to play games) OLED screen should display an animation of bones ( that I created from scrath in Photoshop) moving across the screen:

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BOM:

• 6 Cherry MX Switches
• 6 DSA Keycaps
• 4 M3x12mm SHCS Bolts
• 4 M3x5x4 Heatset inserts
• 1 XIAO RP2040
• 1 0.91" 128x32 OLED Display
• 2 WS2812B LEDs
• 6 DO-35 diodes

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Final notes: I spent a long time on this project and am very proud of it, I would love to get it approved and test it out in person! I learnt a lot about the cadding process, as well as about PCB and the parts needed for projects like keyboards. I will say I feel I didn't learn enough about understanding the code, but it is something I definitely will do once I can test out my keyboard.