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

Termination PCB for MTBbus
Mtb term is an open-source printed circuit board by kmzbrnoI, from the kmzbrnoI/mtb-term repository on GitHub. It is a 2-layer board of 22 × 16 mm with 11 parts on 7 nets, routed with 29 tracks and 10 vias.
Its parts include 4 resistors, 3 diodes, 2 capacitors, 1 IC and 1 connector.
$ make all| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 22u | Resistor_SMD:R_0805_2012Metric | C1, C2 |
| 2 | 560R | Resistor_SMD:R_0805_2012Metric | R2, R4 |
| 1 | 1N4148 | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 200R | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | Conn_01x04 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-4-5.08_1x04_P5.08mm_Horizontal | J1 |
| 1 | L78L05_SOT89 | Package_TO_SOT_SMD:SOT-89-3_Handsoldering | U1 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D2 |
| 1 | SM712_SOT23 | Package_TO_SOT_SMD:SOT-23_Handsoldering | D3 |

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


FrameworkComputer/ExpansionCards
Reference designs and documentation to create Expansion Cards for the Framework Laptop

hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI

hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!


tardate/LittleArduinoProjects
a collection of "Little Electronic & Arduino Projects", most involving electronics or an Arduino in one way or another!

basilfx/TRADFRI-Hacking
Hacking IKEA TRÅDFRI products, such as light bulbs, window blinds and other accessories.
It measures 22 × 16 mm and has 2 copper layers, 1.6 mm thick.
11 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 kmzbrnoI/mtb-term repository on GitHub, at the commit this page was made from: the board is mtb-term.kicad_pcb and its schematic mtb-term.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 kmzbrnoI before reusing the design.