design files for building IVEE forth-based calculator
Calc is an open-source printed circuit board by svofski, from the svofski/calculator-ivee repository on GitHub. It is a 2-layer board of 76.2 × 107.9 mm with 30 parts on 30 nets, routed with 198 tracks and 35 vias.
It is built around the AP3101A, BAT54S and MSK12C02. Its parts include 17 switches, 3 ICs, 1 resistor, 1 diode and 1 transistor.
The original is here: https://github.com/zooxo/iv ( Youtube demo )
Expectation:
Reality:
OLED 2.42 inch https://aliexpress.com/item/32950307344.html
switches SKRRAAE010 https://aliexpress.com/item/1005004917288663.html
on/off switch MSK-12C02 https://aliexpress.com/item/4000685483225.html
Battery shared load circuits:
3mf project the case and switch button
| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | ~ | SKRRAAE010_Dome_Switch:SKRRAAE010-15.24mm-keyboard-pitch | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 1 | 10K | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | AP3101 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | BAT | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | BAT54S | Package_TO_SOT_SMD:SOT-23 | D1 |
| 1 | Bodge directly from Arduino USB UVCC | TestPoint:TestPoint_THTPad_2.0x2.0mm_Drill1.0mm | TP1 |
| 1 | MSK12C02 | Switch_MSK12C02:MSK12C02 | SW17 |
| 1 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP1 |
| 1 | TP4056 Module 28x17 | TP4056_Module:TP4056 Module 28x17 | U3 |
| 1 | ~ | Arduino_Pro_Micro:Arduino Pro Micro USB-C 36.8x17.7 | U2 |
| 1 | ~ | OLED_Display:OLED_2.42inch_SPI_7PIN | U1 |
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30 parts, built around the AP3101A, BAT54S and MSK12C02. 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 svofski/calculator-ivee repository on GitHub, at the commit this page was made from: the board is hardware/calc/calc.kicad_pcb and its schematic hardware/calc/calc.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask svofski before reusing the design.
