Add Jankpad

hackpads/jankpad/README.md

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+# Janky Macropad #
+
+This is my hackpad submission!
+
+![image](assets/v3_full_front.png)
+
+![image](assets/v3_full_back.png)
+
+It features a 128x32 OLED display, 16 MX switches, and a rotary switch, the case is seperated into two three parts connected by screws
+
+![image](assets/v3_case.png)
+
+# kicad library files #
+
+[MX_V2](https://github.com/ai03-2725/MX_V2)
+
+[OPL_Kicad_Library](https://github.com/Seeed-Studio/OPL_Kicad_Library)
+
+[KiCad-SSD1306-0.91-OLED-4pin-128x32.pretty](https://github.com/gorbachev/KiCad-SSD1306-0.91-OLED-4pin-128x32.pretty.git)
+
+# kicad 3d models #
+
+[models](models.zip)
+
+# Pretty PCB Pictures 
+
+A 4x4 keyboard matrix is used to support 16 keys. An IO extender is used to give the XIAO enough pins to connect to the matrix and other components
+
+![image](assets/v3_schematic.png)
+
+![image](assets/v3_pcb_back.png)
+
+![image](assets/v3_pcb_front.png)
+
+# BOM #
+
+## Keyboard ##
+
+- 16 MX-Style Switches
+- 16 Keycaps
+- 1 EC11 Rotary encoder
+
+## Case ##
+
+3d prints @ [production/case](production/case)
+
+- `bottom.stl`
+- `middle.stl`
+- `top.stl`
+
+Misc
+
+- 5 M3x16mm screws
+- 10 M3x5mx4mm heatset inserts
+
+## Electronics ## 
+- PCB
+- 1 Seeed XIAO RP2040 SMD
+- 16 1N4148 Diodes
+- 16 SK6812 LEDs
+- 1 MCP23017
+- 0.96 inch OLED
+
+
+# Background #
+
+I haven't every played with kicad or pcb design before, so this project presented the perfect oppurtunity for me to do just that!
+I wanted to challenge myself by trying to route as many components as possible on my pcb, and so my first Jankpad had almost every item in the approved list. 
+
+I tried doing this in one all nighter and I think I've gone insane, it's okay though because I have a really cool looking numpad design now :D
+
+![image](assets/full.png)
+
+Jankpad V3 managed to slim down the design at the cost of a rotary encoder, as I learned that I could place components on the back side of the board.
+
+I'm pretty proud of Jankpad V3, and it baffles me that I was able to go from never having touched kicad to having designed my own macropad from scratch in a span of two days
+