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

SET MCS51 is an open-source printed circuit board by Lanove, from the Lanove/learning_mcs51 repository on GitHub. It is a 2-layer board of 44 × 65.2 mm with 30 parts on 45 nets, routed with 219 tracks and 0 vias.
It is built around the TSA017A2526A. Its parts include 6 capacitors, 6 connectors, 4 diodes, 3 resistors and 2 ICs. It belongs with the 8051 (CH55x, STC, AT89) boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 100n | Capacitor_SMD:C_0805_2012Metric | C5, C6 |
| 2 | 1N5819 | Diode_SMD:D_SOD-123F | D2, D3 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric | R2, R3 |
| 2 | 33p | Capacitor_SMD:C_0805_2012Metric | C3, C4 |
| 2 | LED | LED_THT:LED_D3.0mm | D1, D4 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C7 |
| 1 | 10u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C2 |
| 1 | 24MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | AT89x51xxP | Package_DIP:DIP-40_W15.24mm | U1 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Wuerth_6941xx301002 | J1 |
| 1 | G*** | kibuzzard-66CF14D0 | kibuzzard-66CF14D0 |
| 1 | G*** | kibuzzard-66CF1473 | kibuzzard-66CF1473 |
| 1 | G*** | kibuzzard-66CF14EF | kibuzzard-66CF14EF |
| 1 | G*** | kibuzzard-66CF14A2 | kibuzzard-66CF14A2 |
| 1 | G*** | kibuzzard-66D43124 | kibuzzard-66D43124 |
| 1 | G*** | kibuzzard-66CF150F | kibuzzard-66CF150F |
| 1 | ISP | Connector_JST:JST_XH_B6B-XH-AM_1x06_P2.50mm_Vertical | J6 |
| 1 | LM7805_TO220 | Package_TO_SOT_THT:TO-220-3_Vertical | U2 |
| 1 | Port 0 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J5 |
| 1 | Port 1 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J2 |
| 1 | Port 2 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J4 |
| 1 | Port 3 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J3 |
| 1 | TSA017A2526A | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | ~ | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
It measures 44 × 65.2 mm and has 2 copper layers, 1.6 mm thick.
30 parts, built around the TSA017A2526A. 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 Lanove/learning_mcs51 repository on GitHub, at the commit this page was made from: the board is board/SET_MCS51.kicad_pcb and its schematic board/SET_MCS51.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 Lanove before reusing the design.

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


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