
Controller
google/mozc-devices
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Five-LED array PCB with per-branch current limiting - KiCad 9, 2-layer, 17.9 x 16.3 mm
Simple LED is an open-source printed circuit board by VikramR3, from the VikramR3/Simple_LED repository on GitHub, published under the MIT licence. It is a 2-layer board of 17.9 × 16.3 mm with 11 parts on 7 nets, routed with 26 tracks and 0 vias.
Its parts include 5 resistors, 5 diodes and 1 connector.
A small 2-layer PCB carrying five surface-mount LEDs, each with its own current-limiting resistor, fed from a single 2-pin screw terminal. Designed in KiCad 9.

| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 56R | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R5 |
| 5 | LED | LED_SMD:LED_0805_2012Metric | D1, D2, D3, D4, D5 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J1 |
It measures 17.9 × 16.3 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 VikramR3/Simple_LED repository on GitHub, at the commit this page was made from: the board is Simple_LED.kicad_pcb and its schematic Simple_LED.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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


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