
LogikKatze
Lichtwerkstatt/ElectronicTinkerStuff
A little Repository with all our small electronic projects

A little Repository with all our small electronic projects
TaschenBit 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 61.8 × 82.3 mm with 18 parts on 17 nets, routed with 84 tracks and 5 vias.
It is built around the CD74HC283E. Its parts include 8 resistors, 5 diodes, 3 switches and 1 IC.
A little Repository with all our small electronic projects
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:
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.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8 |
| 5 | LED | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5 |
| 2 | SW_DIP_x04 | Package_DIP:DIP-8_W7.62mm_LongPads | SW1, SW2 |
| 1 | Battery_Cell | m_power:BatteryHolder_TrueComponents_TC-13220724_2016_2020_202_2032 | BT1 |
| 1 | CD74HC283E | Package_DIP:DIP-16_W7.62mm_LongPads | U1 |
| 1 | SW_Wuerth_450301014042 | m_switch:Slide Switch True Components | SW3 |

Lichtwerkstatt/ElectronicTinkerStuff
A little Repository with all our small electronic projects

Lichtwerkstatt/ElectronicTinkerStuff
A little Repository with all our small electronic projects

Lichtwerkstatt/ElectronicTinkerStuff
A little Repository with all our small electronic projects

Lichtwerkstatt/ElectronicTinkerStuff
A little Repository with all our small electronic projects

Lichtwerkstatt/ElectronicTinkerStuff
A little Repository with all our small electronic projects

adham404/Open8-VGA
An 8-bit computer from 74HC logic: microcoded CPU, VGA, PS/2, on-board editor and assembler. Play it in your browser.


PhdWizards/4-Bit-Discrete-Transistor-Adder
The core 4-bit binary adder is implemented entirely using discrete transistor-resistor logic. The resulting 5-bit binary value is converted to BCD using 74HC-series logic and displayed on two 7-segment displays.





VoronDesign/Voron-Hardware
Cool Hardware designed by the Voron Design group
It measures 61.8 × 82.3 mm and has 2 copper layers, 1.6 mm thick.
18 parts, built around the CD74HC283E. 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 Lichtwerkstatt/ElectronicTinkerStuff repository on GitHub, at the commit this page was made from: the board is Volladdierer/TaschenBit/TaschenBit.kicad_pcb and its schematic Alpaka/Fancy_Alpaca/Fancy_Alpaca.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
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).