2 layers101.5 × 83 mm
2 layers100 × 100 mm
Calc
makargon/calcСхема полного сумматора для изучения принципов работы алгебры логики в школе
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 74
- Nets
- 52
- Pads
- 170
- Tracks, vias
- 457, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 5 Jul 2026
- Updated
- 5 Jul 2026
Overview
Calc is an open-source printed circuit board by makargon, from the makargon/calc repository on GitHub. It is a 2-layer board of 100 × 100 mm with 74 parts on 52 nets, routed with 457 tracks and 0 vias.
It is built around the 2N2222A. Its parts include 39 resistors, 24 transistors and 2 diodes.
Main components
1README
README.mdСхема полного сумматора для изучения принципов работы алгебры логики в школе
Выполнено на транзисторах 2N2222 и резисторах по 1k и 10k. Схемы можно подключать последовательно. А так же, для удобства рекомендуется вывести элементы управления и индикации.
Сборка
Разрабатывалось в EasyEDA, а после экспортировано в KiCAD
Parts
74| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 2N2222A | Calc:TO-92-3_L4.8-W3.7-P2.54-R | Q1, Q2, Q10, Q11, Q12, Q13, Q14, Q15, Q16, Q17, Q18, Q19, Q20, Q21, Q22, Q23 +8 |
| 22 | 10k | Calc:RC08 | R1, R2, R11, R12, R16, R17, R18, R19, R20, R21, R26, R27, R28, R29, R30, R31 +6 |
| 13 | 1k | Calc:RC08 | R3, R4, R9, R10, R13, R22, R23, R24, R25, R34, R35, R36, R39 |
| 3 | MTS-102 | Calc:MTS-102-A2-ON-ON | A, B, C |
| 2 | 1K | Calc:RC08 | R14, R15 |
| 2 | 390 | Calc:RC08 | R32, R33 |
| 2 | LED_3mm | Calc:LED_LED3MM | LED1, LED2 |
| 1 | 9 | Calc:HDR1X2 | V1 |
| 1 | Pad_gge140 | Calc:Pad_gge140 | Pad_gge140 |
| 1 | Pad_gge167 | Calc:Pad_gge167 | Pad_gge167 |
| 1 | Pad_gge194 | Calc:Pad_gge194 | Pad_gge194 |
| 1 | Pad_gge23 | Calc:Pad_gge23 | Pad_gge23 |
| 1 | Pad_gge41 | Calc:Pad_gge41 | Pad_gge41 |
Questions
How big is the Calc PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Calc use?
74 parts, built around the 2N2222A. 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 Calc KiCad files?
From the makargon/calc repository on GitHub, at the commit this page was made from: the board is Calc.kicad_pcb and its schematic Calc.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Calc design in my own project?
Its repository states no licence, so its author keeps all rights: ask makargon before reusing the design.
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