2 layers243.2 × 106 mm
2 layers321.3 × 137.5 mm
Keyboard
mattbooks/keyboard- Size
- 321.3 × 137.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 163
- Nets
- 107
- Pads
- 619
- Tracks, vias
- 783, 96
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 30 Mar 2017
- Updated
- 14 Apr 2018
Overview
Keyboard is an open-source printed circuit board by mattbooks, from the mattbooks/keyboard repository on GitHub, published under the MIT licence. It is a 2-layer board of 321.3 × 137.5 mm with 163 parts on 107 nets, routed with 783 tracks and 96 vias.
It is built around the ATMEGA32U4-AU. Its parts include 65 diodes, 65 switches, 8 resistors, 7 connectors and 5 capacitors. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1Parts
163| Qty | Value | Footprint | References |
|---|---|---|---|
| 64 | D_Small | Diodes_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +48 |
| 60 | SPST | keyboard-modules:CHERRY_PCB_100H | S1, S2, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20, S21, S22, S23 +44 |
| 9 | MountingHole_3.2mm_M3 | MountingHole_3.2mm_M3 | , , , , , , , , |
| 4 | 1k | Resistors_SMD:R_1206_HandSoldering | R1, R2, R3, R8 |
| 4 | SPST | keyboard-modules:CHERRY_PCB_200V | S61, S62, S63, S64 |
| 2 | 100nF | Capacitors_SMD:C_1206_HandSoldering | C4, C5 |
| 2 | 18pF | Capacitors_SMD:C_1206_HandSoldering | C1, C2 |
| 2 | 22 | Resistors_SMD:R_1206_HandSoldering | R6, R7 |
| 2 | 2k2 | Resistors_SMD:R_1206_HandSoldering | R4, R5 |
| 2 | CONN_01X04 | Pin_Headers:Pin_Header_Straight_1x04_Pitch1.27mm | J3, J5 |
| 2 | CONN_01X07 | Pin_Headers:Pin_Header_Straight_1x07_Pitch1.27mm | J4, J7 |
| 1 | 16MHz | Crystals:Crystal_Round_d1.0mm_Vertical | Y1 |
| 1 | 1uF | Capacitors_SMD:C_1206_HandSoldering | C3 |
| 1 | ATMEGA32U4-AU | Housings_QFP:TQFP-44_10x10mm_Pitch0.8mm | U1 |
| 1 | CONN_01X05 | Pin_Headers:Pin_Header_Straight_1x05_Pitch1.27mm | J2 |
| 1 | CONN_01X06 | Pin_Headers:Pin_Header_Straight_1x06_Pitch1.27mm | J6 |
| 1 | LED_ARGB | LEDs:LED_D5.0mm-4-v2 | D99 |
| 1 | MCP23018_SSOP | Housings_SSOP:SSOP-24_5.3x8.2mm_Pitch0.65mm | U2 |
| 1 | Polyfuse_Small | Resistors_SMD:R_1206_HandSoldering | F1 |
| 1 | SPST | Buttons_Switches_SMD:SW_SPST_EVQP0 | S100 |
| 1 | USB_OTG | keyboard-modules:USB-MINI | J1 |
Questions
How big is the Keyboard PCB?
It measures 321.3 × 137.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Keyboard use?
163 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 Keyboard KiCad files?
From the mattbooks/keyboard repository on GitHub, at the commit this page was made from: the board is hardware/keyboard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keyboard 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).
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