2 layers110 × 63.5 mm
Einhhorn
Lichtwerkstatt/ElectronicTinkerStuff
A little Repository with all our small electronic projects
25 partsMIT
2 layers93.3 × 127.6 mm
LogikKatze
Lichtwerkstatt/ElectronicTinkerStuffA little Repository with all our small electronic projects
- Size
- 93.3 × 127.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 33
- Nets
- 33
- Pads
- 108
- Tracks, vias
- 177, 9
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 20 Aug 2026
- Updated
- 7 Sep 2026
Overview
LogikKatze is an open-source printed circuit board by Lichtwerkstatt, from the Lichtwerkstatt/ElectronicTinkerStuff repository on GitHub, published under the MIT licence. It is a 2-layer board of 93.3 × 127.6 mm with 33 parts on 33 nets, routed with 177 tracks and 9 vias.
It is built around the CD4017BE, CD4051BE and NE555P. Its parts include 15 resistors, 9 diodes, 3 ICs, 3 switches and 2 capacitors.
Main components
3
CD4017BE
DIP-16-55℃~+125℃ 1 135ns 3V~18V 5.5MHz 500mW Asynchronous CD4000 Divide-by-10 Reset function、Cascade counter、Static operation Rising Edge Synchronous Up Counter DIP-16 Counters, Dividers ROHSTexas InstrumentsCounters, DividersCD4051BE
PDIP-16-55℃~+125℃ 125Ω 20MHz 3V~20V 450ns 8 8:1 PDIP-16 Analog Switches, Multiplexers ROHSTexas InstrumentsAnalog Switches, Multiplexers
NE555P
DIP-80℃~+70℃ 100kHz 10mA 4.5V~16V DIP-8 555 Timers / Counters ROHSTexas InstrumentsTimers / Counters
README
README.mdElectronicTinkerStuff
A little Repository with all our small electronic projects
PCBs
All circuit boards are available for free use under the MIT License. If you use them directly without significant modifications, I would simply ask that you leave the name of the organization (Lichtwerkstatt) and the designer (Canan Gallitschke) on the circuit boards.
A collection of all our self-designed PCBs. Included for each PCB are:
- KiCad files
- SVG graphics
- Gerber files for JLCPCB
The “footprints” folder contains all custom footprints.
The Excel file “Teileliste.xls” contains a list of the required components and purchase links for most PCBs.
For each board, there is a “production” folder containing a ZIP file with the Gerber files. This ZIP file can be uploaded directly to JLCPCB for production.
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15 |
| 9 | LED | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 2 | 1µ | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C1, C2 |
| 1 | 100K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 2,2K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | Battery_Cell | Battery:Battery_MPD_BHX2-2032-PC_2x2032 | BT1 |
| 1 | CD4017 | Package_DIP:CERDIP-16_W7.62mm_SideBrazed_Socket | U2 |
| 1 | CD4051B | Package_DIP:CERDIP-16_W7.62mm_SideBrazed_Socket | U3 |
| 1 | DIP x03 | Button_Switch_THT:SW_DIP_SPSTx03_Slide_9.78x9.8mm_W7.62mm_P2.54mm | SW2 |
| 1 | NE555P | Package_DIP:DIP-8_W7.62mm | U1 |
| 1 | Push Switch | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | Slide Switch | m_switch:Slide Switch True Components | SW3 |
Questions
How big is the LogikKatze PCB?
It measures 93.3 × 127.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LogikKatze use?
33 parts, built around the CD4017BE, CD4051BE and NE555P. 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 LogikKatze KiCad files?
From the Lichtwerkstatt/ElectronicTinkerStuff repository on GitHub, at the commit this page was made from: the board is Katze/LogikKatze/LogikKatze.kicad_pcb and its schematic Alpaka/Fancy_Alpaca/Fancy_Alpaca.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LogikKatze design in my own project?
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).
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