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

A 9-key macropad with macros for quickly typing email, etc.; media controls; window controls. Also has a very important alt+f4 key.
Hackpadv2 is an open-source printed circuit board by UnstoppableBlob, from the UnstoppableBlob/rpad repository on GitHub. It is a 2-layer board of 77.6 × 83.6 mm with 16 parts on 34 nets, routed with 266 tracks and 20 vias.
Its parts include 11 switches, 2 resistors and 2 ICs. It belongs with the RP2040 boards of this library.
A 9-key macropad with macros for quickly typing email, etc.; media controls; window controls. Also has a very important alt+f4 key. It has 2 rotary encoders that are supposed to set volume and brightness and a OLED that should display that info and the time.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11 |
| 2 | R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2 |
| 2 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm_CircularMountingHoles | SW1, SW2 |
| 1 | MCP23017_SO | Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm | U2 |
| 1 | SSD1306 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | Brd1 |
| 1 | XIAO-RP2040-DIP | OPL:XIAO-RP2040-DIP | U1 |
It measures 77.6 × 83.6 mm and has 2 copper layers, 1.6 mm thick.
16 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 UnstoppableBlob/rpad repository on GitHub, at the commit this page was made from: the board is PCB/hackpadv2.kicad_pcb and its schematic PCB/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 UnstoppableBlob before reusing the design.

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Circuit diagrams and firmware source code for Gboard DIY keyboards

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