2 layers243.9 × 136.5 mm
Barobord
sadekbaroudi/barobord
I have spent a lot of time and money designing prototypes, testing, developing, etc. Any contributions would be greatly appreciated!
157 parts57
2 layers304.8 × 102 mm
Keyboardpcb
brandonlu35/keyboard-pcb-project- Size
- 304.8 × 102 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 162
- Nets
- 110
- Pads
- 597
- Tracks, vias
- 870, 109
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Nov 2025
- Updated
- 20 Nov 2025
Overview
Keyboardpcb is an open-source printed circuit board by brandonlu35, from the brandonlu35/keyboard-pcb-project repository on GitHub. It is a 2-layer board of 304.8 × 102 mm with 162 parts on 110 nets, routed with 870 tracks and 109 vias.
It is built around the ATMEGA32U4-AU and PRTR5V0U2X. Its parts include 67 diodes, 64 switches, 8 capacitors, 6 resistors and 2 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATMEGA32U4-AU
QFP-44(10x10)-40℃~+85℃ 10bit 16MHz 1KB 2.5KB 2.7V~5.5V 26 32KB 8 Bit AVR Built-in FLASH QFP-44(10x10) 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)
Parts
162| Qty | Value | Footprint | References |
|---|---|---|---|
| 67 | D | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +51 |
| 6 | LOGO | LOGO | G***, G***, G***, G***, G***, G*** |
| 4 | 0.1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5, C6, C7 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R6 |
| 2 | 22p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4 |
| 1 | ' " | Mx_Only:MX-Solderable-1U | K42 |
| 1 | ,< | Mx_Only:MX-Solderable-1U | K53 |
| 1 | -_ | Mx_Only:MX-Solderable-1U | K12 |
| 1 | .> | Mx_Only:MX-Solderable-1U | K54 |
| 1 | /? | Mx_Only:MX-Solderable-1U | K55 |
| 1 | 0 | Mx_Only:MX-Solderable-1U | K11 |
| 1 | 1 | Mx_Only:MX-Solderable-1U | K2 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 2 | Mx_Only:MX-Solderable-1U | K3 |
| 1 | 3 | Mx_Only:MX-Solderable-1U | K4 |
| 1 | 4 | Mx_Only:MX-Solderable-1U | K5 |
| 1 | 5 | Mx_Only:MX-Solderable-1U | K6 |
| 1 | 500m | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | 6 | Mx_Only:MX-Solderable-1U | K7 |
| 1 | 60@100MHz | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | FB1 |
| 1 | 7 | Mx_Only:MX-Solderable-1U | K8 |
| 1 | 8 | Mx_Only:MX-Solderable-1U | K9 |
| 1 | 9 | Mx_Only:MX-Solderable-1U | K10 |
| 1 | ; : | Mx_Only:MX-Solderable-1U | K41 |
| 1 | =+ | Mx_Only:MX-Solderable-1U | K13 |
| 1 | A | Mx_Only:MX-Solderable-1U | K32 |
| 1 | ATmega32U4-A | Package_QFP:TQFP-44_10x10mm_P0.8mm | U1 |
| 1 | AVR-ISP-6 | random-keyboard-parts:Reset_Pretty-Mask | J1 |
| 1 | B | Mx_Only:MX-Solderable-1U | K50 |
| 1 | BSPC | Mx_Only:MX-Solderable-2U | K14 |
| 1 | C | Mx_Only:MX-Solderable-1U | K48 |
| 1 | CAPS | Mx_Only:MX-Solderable-1.75U | K31 |
| 1 | CTRL | Mx_Only:MX-Solderable-1.5U | K59 |
| 1 | D | Mx_Only:MX-Solderable-1U | K34 |
| 1 | DEL | Mx_Only:MX-Solderable-1U | K58 |
| 1 | DOWN | Mx_Only:MX-Solderable-1U | K66 |
| 1 | E | Mx_Only:MX-Solderable-1U | K19 |
| 1 | ENT | Mx_Only:MX-Solderable-2.25U | K43 |
| 1 | ESC | Mx_Only:MX-Solderable-1U | K1 |
| 1 | F | Mx_Only:MX-Solderable-1U | K35 |
| 1 | FN | Mx_Only:MX-Solderable-1.25U | K64 |
| 1 | G | Mx_Only:MX-Solderable-1U | K36 |
| 1 | H | Mx_Only:MX-Solderable-1U | K37 |
| 1 | HRO-TYPE-C-31-M-12 | Type-C:HRO-TYPE-C-31-M-12-HandSoldering | USB1 |
| 1 | I | Mx_Only:MX-Solderable-1U | K24 |
| 1 | INS | Mx_Only:MX-Solderable-1U | K44 |
| 1 | J | Mx_Only:MX-Solderable-1U | K38 |
| 1 | K | Mx_Only:MX-Solderable-1U | K39 |
| 1 | L | Mx_Only:MX-Solderable-1U | K40 |
| 1 | LALT | Mx_Only:MX-Solderable-1.5U | K61 |
| 1 | LEFT | Mx_Only:MX-Solderable-1U | K65 |
| 1 | LSHFT | Mx_Only:MX-Solderable-2.25U | K45 |
| 1 | M | Mx_Only:MX-Solderable-1U | K52 |
| 1 | N | Mx_Only:MX-Solderable-1U | K51 |
| 1 | O | Mx_Only:MX-Solderable-1U | K25 |
| 1 | P | Mx_Only:MX-Solderable-1U | K26 |
| 1 | PGDN | Mx_Only:MX-Solderable-1U | K30 |
| 1 | PGUP | Mx_Only:MX-Solderable-1U | K15 |
| 1 | PRTR5V0U2X | random-keyboard-parts:SOT143B | U2 |
| 1 | Q | Mx_Only:MX-Solderable-1U | K17 |
| 1 | R | Mx_Only:MX-Solderable-1U | K20 |
| 1 | RALT | Mx_Only:MX-Solderable-1.25U | K63 |
| 1 | RGHT | Mx_Only:MX-Solderable-1U | K67 |
| 1 | RSHFT | Mx_Only:MX-Solderable-1.75U | K56 |
| 1 | S | Mx_Only:MX-Solderable-1U | K33 |
| 1 | SPC | Mx_Only:MX-Solderable-6.25U | K62 |
| 1 | SW_Push_Reset | Button_Switch_SMD:SW_SPST_SKQG_WithStem | SW1 |
| 1 | T | Mx_Only:MX-Solderable-1U | K21 |
| 1 | TAB | Mx_Only:MX-Solderable-1.5U | K16 |
| 1 | U | Mx_Only:MX-Solderable-1U | K23 |
| 1 | UP | Mx_Only:MX-Solderable-1U | K57 |
| 1 | V | Mx_Only:MX-Solderable-1U | K49 |
| 1 | W | Mx_Only:MX-Solderable-1U | K18 |
| 1 | WIN | Mx_Only:MX-Solderable-1.25U | K60 |
| 1 | X | Mx_Only:MX-Solderable-1U | K47 |
| 1 | XTAL | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | X1 |
| 1 | Y | Mx_Only:MX-Solderable-1U | K22 |
The 158 most common of 162 parts.
Questions
How big is the Keyboardpcb PCB?
It measures 304.8 × 102 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Keyboardpcb use?
162 parts, built around the ATMEGA32U4-AU 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 Keyboardpcb KiCad files?
From the brandonlu35/keyboard-pcb-project repository on GitHub, at the commit this page was made from: the board is keyboardpcb.kicad_pcb and its schematic keyboardpcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keyboardpcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask brandonlu35 before reusing the design.
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