2 layers344 × 124.5 mm
2 layers80 × 104.8 mm
SkeletonNumPad
skeletonkbd/SkeletonNumPad1- Size
- 80 × 104.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 71
- Nets
- 76
- Pads
- 358
- Tracks, vias
- 779, 53
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 16 Jan 2022
- Updated
- 14 Sep 2023
Overview
SkeletonNumPad is an open-source printed circuit board by skeletonkbd, from the skeletonkbd/SkeletonNumPad repository on GitHub, published under the MIT licence. It is a 2-layer board of 80 × 104.8 mm with 71 parts on 76 nets, routed with 779 tracks and 53 vias.
It is built around the ATMEGA32U4-MU and PRTR5V0U2X. Its parts include 34 diodes, 17 switches, 8 capacitors, 6 resistors and 2 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATMEGA32U4-MU
VQFN-44-EP(7x7)-40℃~+85℃ 10bit 16MHz 1KB 2.5KB 2.7V~5.5V 26 32KB 8 Bit AVR Built-in FLASH VQFN-44-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
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)
README
README.mdParts
71| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | D_Small | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8, D10, D11, D12, D13, D14, D15, D16, D17 +1 |
| 17 | YS-SK6812MINI-E | Custom:YS-SK6812MINI-E | LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17 +1 |
| 14 | SW_PUSH | Custom:MXOnly-1U-Hotswap | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW9, SW10, SW11, SW12, SW13, SW14, SW17 |
| 4 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C4, C5, C6, C7 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R5, R6 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | 22p | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | SW_PUSH | Custom:MXOnly-2U-Hotswap-VerticalStabilizers | SW8, SW15 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C8 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | ATmega32U4-M | Package_DFN_QFN:QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mm | U1 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | PRTR5V0U2X | Package_TO_SOT_SMD:SOT-143 | U2 |
| 1 | SW_PUSH | Button_Switch_SMD:SW_SPST_SKQG_WithStem | SW_1 |
| 1 | SW_PUSH | Custom:MXOnly-2U-Hotswap | SW16 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_Palconn_UTC16-G | J1 |
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Questions
How big is the SkeletonNumPad PCB?
It measures 80 × 104.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SkeletonNumPad use?
71 parts, built around the ATMEGA32U4-MU and PRTR5V0U2X. 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 SkeletonNumPad KiCad files?
From the skeletonkbd/SkeletonNumPad repository on GitHub, at the commit this page was made from: the board is SkeletonNumPad.kicad_pcb and its schematic SkeletonNumPad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SkeletonNumPad design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).