

Introduction: PCB1 is a tenkeyless keyboard.
- Size
- 345.7 × 123.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 196
- Nets
- 125
- Pads
- 923
- Tracks, vias
- 863, 38
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 8 May 2024
- Updated
- 9 May 2024
Overview
Pcb1 is an open-source printed circuit board by awu778, from the awu778/keyboardpcb1 repository on GitHub. It is a 2-layer board of 345.7 × 123.8 mm with 196 parts on 125 nets, routed with 863 tracks and 38 vias.
It is built around the ATMEGA32U4-AU. Its parts include 89 diodes, 7 capacitors, 5 resistors, 1 IC and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdIntroduction: PCB1 is a tenkeyless keyboard.
Technical information:
- Layout size: tenkeyless
- Compatible switches: MX style non-hotswap
- Microcontroller: ATMEGA32u4-AU *note: there is no compatibility with the MU variant.
- Connector: USB-C via unified daughterboard
- Firmware Compatibility: QMK (with VIA and VIAL support)
- Protection hardware: USB data line and power rail ESD suppressing, USB power overvoltage protection, Overcurrent protection

Parts
196| Qty | Value | Footprint | References |
|---|---|---|---|
| 88 | SOD_123 | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +72 |
| 3 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C4, C5, C6 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric | R2, R3 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | Alt | Alps:MX-1.5U-NoLED | MX83, MX84 |
| 2 | Ctrl | Alps:MX-1.5U-NoLED | MX81, MX86 |
| 2 | R Shift | Alps:MX-2.75U-NoLED | MX77, MX77 |
| 2 | Win | Alps:MX-1U-NoLED | MX82, MX85 |
| 1 | ' | Alps:MX-1U-NoLED | MX63 |
| 1 | , | Alps:MX-1U-NoLED | MX74 |
| 1 | - | Alps:MX-1U-NoLED | MX29 |
| 1 | . | Alps:MX-1U-NoLED | MX75 |
| 1 | / | Alps:MX-1U-NoLED | MX76 |
| 1 | 0 | Alps:MX-1U-NoLED | MX28 |
| 1 | 1 | Alps:MX-1U-NoLED | MX19 |
| 1 | 1.5k | Resistor_SMD:R_0805_2012Metric | R5 |
| 1 | 10K | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C7 |
| 1 | 16MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 2 | Alps:MX-1U-NoLED | MX20 |
| 1 | 3 | Alps:MX-1U-NoLED | MX21 |
| 1 | 4 | Alps:MX-1U-NoLED | MX22 |
| 1 | 5 | Alps:MX-1U-NoLED | MX23 |
| 1 | 6 | Alps:MX-1U-NoLED | MX24 |
| 1 | 7 | Alps:MX-1U-NoLED | MX25 |
| 1 | 8 | Alps:MX-1U-NoLED | MX26 |
| 1 | 9 | Alps:MX-1U-NoLED | MX27 |
| 1 | ; | Alps:MX-1U-NoLED | MX62 |
| 1 | = | Alps:MX-1U-NoLED | MX30 |
| 1 | A | Alps:MX-1U-NoLED | MX53 |
| 1 | ATmega32U4-AU | Package_QFP:TQFP-44_10x10mm_P0.8mm | U1 |
| 1 | B | Alps:MX-1U-NoLED | MX71 |
| 1 | BcSpc | Alps:MX-2U-NoLED | MX31 |
| 1 | BcSpc | Alps:MX-1U-NoLED | MX31 |
| 1 | BcSpc1 | Alps:MX-1U-NoLED | MX48 |
| 1 | C | Alps:MX-1U-NoLED | MX69 |
| 1 | Caps | Alps:MX-1.5U | MX52 |
| 1 | Connector_Generic_Conn_01x04 | random:JST-SR-4 | J1 |
| 1 | D | Alps:MX-1U-NoLED | MX55 |
| 1 | D_Small | Diode_SMD:D_SOD-123 | D81 |
| 1 | Delete | Alps:MX-1U-NoLED | MX49 |
| 1 | Down | Alps:MX-1U-NoLED | MX88 |
| 1 | E | Alps:MX-1U-NoLED | MX38 |
| 1 | End | Alps:MX-1U-NoLED | MX50 |
| 1 | Enter | Alps:MX-2.25U-NoLED | MX64 |
| 1 | Esc | Alps:MX-1U-NoLED | MX1 |
| 1 | F | Alps:MX-1U-NoLED | MX56 |
| 1 | F1 | Alps:MX-1U-NoLED | MX2 |
| 1 | F10 | Alps:MX-1U-NoLED | MX11 |
| 1 | F11 | Alps:MX-1U-NoLED | MX12 |
| 1 | F12 | Alps:MX-1U-NoLED | MX13 |
| 1 | F13 | Alps:MX-1U-NoLED | MX14 |
| 1 | F2 | Alps:MX-1U-NoLED | MX3 |
| 1 | F3 | Alps:MX-1U-NoLED | MX4 |
| 1 | F4 | Alps:MX-1U-NoLED | MX5 |
| 1 | F5 | Alps:MX-1U-NoLED | MX6 |
| 1 | F6 | Alps:MX-1U-NoLED | MX7 |
| 1 | F7 | Alps:MX-1U-NoLED | MX8 |
| 1 | F8 | Alps:MX-1U-NoLED | MX9 |
| 1 | F9 | Alps:MX-1U-NoLED | MX10 |
| 1 | G | Alps:MX-1U-NoLED | MX57 |
| 1 | H | Alps:MX-1U-NoLED | MX58 |
| 1 | Home | Alps:MX-1U-NoLED | MX33 |
| 1 | I | Alps:MX-1U-NoLED | MX43 |
| 1 | Insert | Alps:MX-1U-NoLED | MX32 |
| 1 | J | Alps:MX-1U-NoLED | MX59 |
| 1 | K | Alps:MX-1U-NoLED | MX60 |
| 1 | L | Alps:MX-1U-NoLED | MX61 |
| 1 | L Shift | Alps:MX-2.75U-NoLED | MX66 |
| 1 | Left | Alps:MX-1U-NoLED | MX87 |
| 1 | M | Alps:MX-1U-NoLED | MX73 |
| 1 | N | Alps:MX-1U-NoLED | MX72 |
| 1 | O | Alps:MX-1U-NoLED | MX44 |
| 1 | P | Alps:MX-1U-NoLED | MX45 |
| 1 | Pause | Alps:MX-1U-NoLED | MX17 |
| 1 | Pg Dn | Alps:MX-1U-NoLED | MX51 |
| 1 | Pg Up | Alps:MX-1U-NoLED | MX34 |
| 1 | Pipe | Alps:MX-1.5U-NoLED | MX65 |
The 175 most common of 196 parts.
Questions
How big is the Pcb1 PCB?
It measures 345.7 × 123.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pcb1 use?
196 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 Pcb1 KiCad files?
From the awu778/keyboardpcb1 repository on GitHub, at the commit this page was made from: the board is pcb1.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pcb1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask awu778 before reusing the design.
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