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google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards

This is a Macropad to make my coding/dev flow easier.
Macropad is an open-source printed circuit board by ishan211, from the ishan211/macropad repository on GitHub. It is a 2-layer board of 42.9 × 62.9 mm with 8 parts on 18 nets, routed with 62 tracks and 2 vias.
It is built around the SK6812MINI-E. Its parts include 4 switches, 2 diodes and 1 IC. It belongs with the keyboards and input boards and the RP2040 boards of this library.
This is a Macropad to make my coding/dev flow easier.
I added keys to:
| PCB ID | Manufacturer Product Name | Digikey Product Number | Description | Supplier | Link | Quantity | Cost (CAD) | Cost (USD) |
|---|---|---|---|---|---|---|---|---|
| SW1, SW2, SW3, SW4 | MX2A-E1NB | 1644-MX2A-E1NB-ND | Clicky Blue Switch PCB Mounted 5 Pin | Digikey | https://www.digikey.ca/en/products/detail/cherry-americas-llc/MX2A-E1NB/21738397 | 4 | $10.96 | $7.89 |
| D1, D2 | 4776 | 1528-4776-ND | NEOPIXEL RGBW MINI BUTTON PCB - | Digikey | https://www.digikey.ca/en/products/detail/adafruit-industries-llc/4776/13550158?s=N4IgTCBcDaIMoGkBsAOAjGABAWQJIDlcBaAURAF0BfIA | 2 | $15.52 | $11.17 |
| U1 | 102010428 | 1597-102010428-ND | XIAO RP2040 | Digikey | https://www.digikey.ca/en/products/detail/seeed-technology-co-ltd/102010428/14672129?s=N4IgTCBcDaIIwFYCcB2AtHADGTWAsYAHGgHIAiIAugL5A | 1 | $6.88 | $4.95 |
| n/a | n/a | n/a | Digikey Shipping | Digikey | n/a | 1 | $8.00 | $5.76 |
| n/a | n/a | n/a | JLCPCB Manufacturing | JLCPCB | n/a | 1 | $2.00 | $1.44 |
| n/a | n/a | n/a | JLCPCB Shipping | JLCPCB | n/a | 1 | $22.82 | $16.43 |
| Total | n/a | n/a | n/a | n/a | n/a | n/a | $33.36 | $24.02 |
Circuit Schematic Made in KiCAD
PCB Design Made in KiCAD
Case Lid and Base made in Fusion360
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4 |
| 2 | SK6812MINI | LED_SMD:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | D1, D2 |
| 1 | LOGO | img:logo | G*** |
| 1 | XIAO-RP2040-DIP | OPL:XIAO-RP2040-DIP | U1 |
It measures 42.9 × 62.9 mm and has 2 copper layers, 1.6 mm thick.
8 parts, built around the SK6812MINI-E. 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 ishan211/macropad repository on GitHub, at the commit this page was made from: the board is pcb/macropad/macropad.kicad_pcb and its schematic pcb/macropad/OPL_Kicad_Library-master/Grove Vision AI V2 Library/Grove - Vision AI Module V2.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 ishan211 before reusing the design.

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