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

A handheld PC
Fet module is an open-source printed circuit board by ByteWelder, from the ByteWelder/Decktility repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board with 11 parts on 9 nets, routed with 18 tracks and 2 vias.
Its parts include 3 resistors, 1 IC, 1 diode and 1 transistor.
This is the KiCad project for the FET board, which acts as an electronic switch to turn on/off the hardware depending on available battery power.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | SolderWire-0.1sqmm_1x01_D0.4mm_OD1mm | Connector_Wire:SolderWire-0.1sqmm_1x01_D0.4mm_OD1mm | +5VD, GNDD, GNDPWR, Vin, Vout |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 2.2k | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | PC817 | Package_DIP:DIP-4_W7.62mm | U1 |
| 1 | PMOS | Package_TO_SOT_SMD:TO-263-2 | Q1 |
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 ByteWelder/Decktility repository on GitHub, at the commit this page was made from: the board is fet-module/fet-module.kicad_pcb and its schematic fet-module/fet-module.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the CC-BY-SA-4.0 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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