2 layers207.8 × 57.2 mm
2 layers227.9 × 65.3 mm
Peanut
calvin-mcd/peanut4alice like 30% inspired by littol and tsuru
- Size
- 227.9 × 65.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 70
- Nets
- 78
- Pads
- 430
- Tracks, vias
- 475, 32
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 4 Sep 2024
- Updated
- 1 Mar 2025
Overview
Peanut is an open-source printed circuit board by calvin-mcd, from the calvin-mcd/peanut repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 227.9 × 65.3 mm with 70 parts on 78 nets, routed with 475 tracks and 32 vias.
It is built around the AP2112K-3.3, PRTR5V0U2X and SKQGABE010. Its parts include 18 diodes, 8 capacitors, 3 resistors, 3 ICs and 2 switches. It belongs with the STM32 boards of this library.
Main components
3
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
PRTR5V0U2X
SOT-143-55℃~+125℃ 0.3pF、0.8pF 100W 10V、15V 5V 6.5V 6A 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
SKQGABE010
SMD-4P,5.2x5.2mm-40℃~+90℃ 1,000,000 cycles 1.5mm 1.6N 12V 5.2mm 5.2mm 50mA Round Button SPST-NO Surface Mount,Vertical SMD-4P,5.2x5.2mm Tactile Switches ROHSALPSALPINETactile Switches
README
README.mdpeanut
alice like 30% inspired by littol and tsuru. Case design, layout and concept by calumwri. Pcb by calvin0563
Layout
Case & Plate
Case and plate files are included in the respective folder.
The case requires m2x3mm heat set inserts and 3mm silicone inserts for the feet.
Firmware
Flash file and source code included in the respective folder.
Pictures
Todo
- order & test pcb
- test case
- create firmware
Disclaimer
This PCB has been fully tested and confirmed to work. The members of the PCB development team are however not liable if you end up with a non-functional pcb. Order at your own risk. Support will not be provided but pull requests will be reviewed and possibly accepted.
License
This project is released under the GPL v3 License. Please refer to the LICENCE file.
Credits
As always big thanks to the many people who helped me and inspired this board!
Any questions, contact Calvin0563 on Discord.
Parts
70| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_HS_CPG151101S11_1u | MX2, MX12, MX13, MX14, MX15, MX16, MX17, MX18, MX19, MX21, MX22, MX23, MX24, MX25, MX27, MX28 +9 |
| 12 | BAV70_Small | Package_TO_SOT_SMD:SOT-23 | D1, D2, D3, D4, D7, D8, D9, D10, D11, D12, D13, D14 |
| 6 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C4, C5, C7 |
| 6 | D_Small | Diode_SMD:D_SOD-123F | D5, D6, D15, D16, D25, D26 |
| 4 | LOGO | LOGO | G***, G***, G***, G*** |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3 |
| 2 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_HS_CPG151101S11_1.5u | MX1, MX10 |
| 2 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_HS_CPG151101S11_1.25u | MX11, MX20 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6 |
| 1 | 1nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U2 |
| 1 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_HS_CPG151101S11_1.75u | MX26 |
| 1 | PRTR5V0U2X | Package_TO_SOT_SMD:SOT-143_Handsoldering | U3 |
| 1 | RotaryEncoder_Switch | PCM_marbastlib-various:ROT_Alps_EC11E-Switch | SW1 |
| 1 | SKQGABE010 | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW2 |
| 1 | STM32F072C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | USB_C_Receptacle_USB2.0 | PCM_marbastlib-various:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
Questions
How big is the Peanut PCB?
It measures 227.9 × 65.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Peanut use?
70 parts, built around the AP2112K-3.3, PRTR5V0U2X and SKQGABE010. 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 Peanut KiCad files?
From the calvin-mcd/peanut repository on GitHub, at the commit this page was made from: the board is Project/peanut.kicad_pcb and its schematic Project/matrix.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Peanut design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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