2 layers243.2 × 106 mm
2 layers76.2 × 99.2 mm
Rootpad
vinay1337/rootpad1A 18 key macropad / numpad based on the atmega32u4 microcontroller
- Size
- 76.2 × 99.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 60
- Nets
- 60
- Pads
- 225
- Tracks, vias
- 381, 21
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 29 Jul 2019
- Updated
- 1 Sep 2019
Overview
Rootpad is an open-source printed circuit board by vinay1337, from the vinay1337/rootpad repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 76.2 × 99.2 mm with 60 parts on 60 nets, routed with 381 tracks and 21 vias.
It is built around the ATMEGA32U4-AU. Its parts include 19 diodes, 7 capacitors, 7 resistors, 1 IC and 1 connector. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdrootpad
A 18 key macropad / numpad based on the atmega32u4 microcontroller
Parts
60| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | D_Small | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D10, D11, D12, D13, D14, D15, D16, D17, D18 +2 |
| 18 | MX-NoLED | MX_Only:MXOnly-1U-NoLED | MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX10, MX11, MX12, MX13, MX14, MX15, MX16, MX17, MX18 +2 |
| 3 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4, C5, C6 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R4 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2, R3 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2 |
| 2 | 80 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R6, R7 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C7 |
| 1 | 150 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5 |
| 1 | 16MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | ATmega32U4-AU | Package_QFP:TQFP-44_10x10mm_P0.8mm | U1 |
| 1 | LED_RAGB | random-keyboard-parts:LED_D5.0mm-4_RGB_Spaced | D19 |
| 1 | SW_Push | random-keyboard-parts:SKQG-1155865 | SW1 |
| 1 | USB_B_Mini | random-keyboard-parts:Molex-0548190589 | J1 |
The 56 most common of 60 parts.
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Questions
How big is the Rootpad PCB?
It measures 76.2 × 99.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Rootpad use?
60 parts, built around the ATMEGA32U4-AU. 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 Rootpad KiCad files?
From the vinay1337/rootpad repository on GitHub, at the commit this page was made from: the board is rootpad/rootpad.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Rootpad 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).