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

PCB
EncodersAS5304 is an open-source printed circuit board by CRM-UAM, from the CRM-UAM/encoderAS5304 repository on GitHub. It is a 2-layer board of 28 × 31.3 mm with 15 parts on 4 nets, routed with 57 tracks and 2 vias.
Its parts include 12 connectors, 2 capacitors and 1 IC.
PCB para los encoders magnéticos (sensores hall AS5304 + Anillo magnético AS5000-MR20-44)
Alimentación a 5V
Salida: doble señal de cuadratura con los canales A y B

| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | C1 | Pin_Headers:Pin_Header_Straight_1x02 | P101, P105, P106, P107, P111, P112 |
| 6 | Pow | Pin_Headers:Pin_Header_Straight_1x02 | P102, P103, P104, P108, P109, P110 |
| 1 | 100n | Capacitors_SMD:C_0805_HandSoldering | C102 |
| 1 | 10u | Capacitors_SMD:C_1206_HandSoldering | C101 |
| 1 | AS5304 | Housings_SSOP:SSOP-20_4.4x6.5mm_Pitch0.65mm | U101 |
It measures 28 × 31.3 mm and has 2 copper layers, 1.6 mm thick.
15 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 CRM-UAM/encoderAS5304 repository on GitHub, at the commit this page was made from: the board is encodersAS5304.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask CRM-UAM before reusing the design.

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