2 layers75 × 106.5 mm
2 layers81 × 71.5 mm
OccupancyDecoder CS
bask185/Train-Science-DIY3- Size
- 81 × 71.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 88
- Nets
- 75
- Pads
- 257
- Tracks, vias
- 519, 196
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 7 Mar 2023
- Updated
- 20 May 2026
Overview
OccupancyDecoder CS is an open-source printed circuit board by bask185, from the bask185/Train-Science-DIY repository on GitHub. It is a 2-layer board of 81 × 71.5 mm with 88 parts on 75 nets, routed with 519 tracks and 196 vias.
It is built around the EL814 and ABS2. Its parts include 34 resistors, 19 diodes, 18 ICs, 8 connectors and 4 capacitors.
Main components
2Parts
88| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 47R | custom_kicad_lib_sk:R_0603_smalltext | R4, R7, R9, R11, R13, R15, R17, R19, R21, R29, R31, R33, R35, R37, R39, R41 |
| 16 | 4k7 | custom_kicad_lib_sk:R_0603_smalltext | R3, R5, R8, R10, R12, R14, R16, R18, R20, R22, R30, R32, R34, R36, R38, R40 |
| 16 | ABS2 | Diode_SMD:Diode_Bridge_Diotec_ABS | D1, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19 |
| 16 | EL814 | Package_DIP:SMDIP-4_W9.53mm | U3, U4, U5, U6, U7, U8, U9, U10, U11, U12, U13, U14, U16, U17, U18, U19 |
| 6 | Screw_Terminal_01x03 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | J1, J2, J3, J4, J5, J6 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C402 |
| 2 | D | Diode_SMD:D_SOD-323 | D2, D3 |
| 2 | RJ12 | Connector_RJ:RJ12_Amphenol_54601 | J17, J18 |
| 1 | 100uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C403 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R2 |
| 1 | 330nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C401 |
| 1 | 6k2 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 1 | ICSP | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | U2 |
| 1 | L78L05_SOT89 | Package_TO_SOT_SMD:SOT-89-3 | U401 |
| 1 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D4 |
| 1 | LOGO | custom_kicad_lib_sk:Train-Science logo small | G*** |
The 84 most common of 88 parts.
Questions
How big is the OccupancyDecoder CS PCB?
It measures 81 × 71.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OccupancyDecoder CS use?
88 parts, built around the EL814 and ABS2. 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.
Where can I download the OccupancyDecoder CS KiCad files?
From the bask185/Train-Science-DIY repository on GitHub, at the commit this page was made from: the board is PCB_SOURCE/occupancyDecoder_CS/occupancyDecoder_CS.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the OccupancyDecoder CS design in my own project?
Its repository states no licence, so its author keeps all rights: ask bask185 before reusing the design.
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