2 layers68.8 × 53.6 mm
Relatively Universal ROM Programmer
AndersBNielsen/Relatively-Universal-ROM-Programmer
Hardware to program W27C512 EEPROM or any 24/28/32 pin ROM requiring from 5V to 27V programming voltage.
149 parts257GPL-3.0
2 layers
Calculator
NamanKumar577/Calculator- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 35
- Pads
- 153
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 Feb 2026
- Updated
- 13 Feb 2026
Overview
Calculator is an open-source printed circuit board by NamanKumar577, from the NamanKumar577/Calculator repository on GitHub. It is a 2-layer board with 28 parts on 35 nets.
It is built around the ARDUINO UNO R3. Its parts include 25 switches and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdCalculator
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +9 |
| 1 | Arduino_UNO_R3 | Module:Arduino_UNO_R3 | A1 |
| 1 | Conn_01x16_Pin | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical | J2 |
| 1 | R_Potentiometer | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV1 |
Questions
What parts does the Calculator use?
28 parts, built around the ARDUINO UNO R3. 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 Calculator KiCad files?
From the NamanKumar577/Calculator repository on GitHub, at the commit this page was made from: the board is pcb/pcb.kicad_pcb and its schematic pcb/pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Calculator design in my own project?
Its repository states no licence, so its author keeps all rights: ask NamanKumar577 before reusing the design.
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