Led panel 3
About the Led panel 3 PCB
Led panel 3 is an open source PCB design by tmarhguy, published on GitHub under the MIT license. It is a 2-layer board measuring 43.5 × 50.5 mm, with 35 components from 8 distinct parts.
By type, the board carries 26 transistors, 4 diodes, 4 resistors and 1 connector.
From the project
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
Individual PCB boards for the 8-Bit Transistor ALU system
This directory contains KiCad projects for each functional board in the ALU system.
Note: The ALU can be implemented as: - Monolithic: Single 270×270mm board (alu/) - Modular: Separate boards (mainlogic/, addsub/, flags/, main_control/)
Current implementation uses modular approach for easier assembly and debugging.
Led panel 3 bill of materials (BOM)
35 components, 8 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 13 | PMOS | TSOT-23 | Q201, Q202, Q206, Q207, Q302, Q303, Q305, Q402 +5 |
| 13 | NMOS | TSOT-23 | Q203, Q204, Q205, Q208, Q301, Q304, Q306, Q401 +5 |
| 1 | Conn_01x10_Pin | Harwin_Gecko-G125-FVX1005L0X_2x05_P1.25mm_Vertical | J101 |
| 1 | LED22 | LED_D3.0mm | D101 |
| 1 | LED21 | LED_D3.0mm | D102 |
| 1 | LED23 | LED_D3.0mm | D103 |
| 1 | LED20 | LED_D3.0mm | D104 |
| 4 | 300 | R_0805_2012Metric | R101, R102, R103, R104 |
Led panel 3 design files
The KiCad project lives in the tmarhguy/alu repository on GitHub; these links point at the commit this page was built from.
Led panel 3: common questions
How big is the Led panel 3 PCB?
The Led panel 3 measures 43.5 × 50.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Led panel 3?
35 components, from 8 distinct parts. The full bill of materials is listed on this page.
Where can I download the Led panel 3 design files?
From the tmarhguy/alu repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Led panel 3 design in my own project?
Yes, under the terms of its MIT license, which tmarhguy chose for the repository.
More boards in alu
Add sub
110 × 117 mm200 parts2LMIT47
Led panel 1
101 × 68 mm131 parts2LMIT47
Led panel 2
78.5 × 68.5 mm129 parts2LMIT47
Main logic
98.5 × 95.5 mm122 parts2LMIT47
Main control
59 × 63 mm42 parts2LMIT47
Flags
41 × 35.5 mm26 parts2LMIT47
Gate xor 2in
72 × 42.5 mm16 parts2LMIT47
Gate xnor 2in
77.5 × 43 mm16 parts2LMIT47
Gate and 4in
5.4 × 18.7 mm10 parts2LMIT47
Gate or 2in
57.5 × 36 mm6 parts2LMIT47
Gate and 2in
42.5 × 32.5 mm6 parts2LMIT47