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gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software

An upgrade to NanoKey
Light Pad is an open-source printed circuit board by NLEVEL-GIT, from the NLEVEL-GIT/HollowPad repository on GitHub. It is a 2-layer board of 97.5 × 81.5 mm with 29 parts on 23 nets, routed with 126 tracks and 0 vias.
Its parts include 9 diodes, 9 switches and 1 IC.
HollowPad was my attempt of upgrading my first ever project.. Nanokey.
HollowPad features a more flesh out design with 9 keys, a 0.91 inch oled and a rotary encoder.- 128x32 OLED Display
- 9 Keys
- Rotary EncoderHollowPad is divided in 3 parts.
- The Main Piece feature holes for M3 brass inserts to screw the PCB in place
- The Top Piece featuring some designs from Hollow Knight and Silk Song.
- 2 stand Pieces so that the HackPad can be angled.
Everything was 100% human made in AutoDesk Fusion. Cuz lowk its free and intuitive!
It was made in KiCad. Only needing a few extra symbols and footprints provided by the Care Package of the HackPad mission from StarDance!
The footprints for the Switches are standart MX style Switches!Schematic:

PCB Layout:

This hackpad uses [QMK](https://qmk.fm/) firmware for everything.
- The 4 keys currently act as macros and are reprogrammable
- The OLED just shows some customs drawings i made in PiskelHere should be everything you need to make this hackpad
- 9x Cherry MX Switches
- 9x DSA Keycaps (or you can 3d print some)
- 9x 1N4148 DO-35 Diodes.
- 1x 0.91" 128x32 OLED Display
- 1x XIAO RP2040
- 1x Case (5 printed parts or 3 if u dont want the stand)Honestly this was just a peoject so i could see how far i had come in the little time ive been in stardance and i think it turned out pretty good!
With all of that said i still suck at code so except some bugs especially on the rotary enconder since that was a pain to figure out.| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | D | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 9 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 1 | Conn_01x04_Pin | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | Oled |
| 1 | LOGO | _Customs:GUDHK | G*** |
| 1 | LOGO | _Customs:HackClubFlag | G*** |
| 1 | LOGO | _Customs:CustomKitty | G*** |
| 1 | LOGO | _Customs:Logo | G*** |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | Spinny Boy |
| 1 | Xiao | Seeed_Studio_XIAO_Series:XIAO-RP2040-DIP | U1 |
The 25 most common of 29 parts.
It measures 97.5 × 81.5 mm and has 2 copper layers, 1.6 mm thick.
29 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the NLEVEL-GIT/HollowPad repository on GitHub, at the commit this page was made from: the board is pcb/Light Pad.kicad_pcb and its schematic pcb/Light Pad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask NLEVEL-GIT before reusing the design.

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