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 × 99.9 mm
Keybraod
Uepl/keybroadcreating keybroad pcb with masterzen's tutorial
- Size
- 304.8 × 99.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 156
- Nets
- 87
- Pads
- 380
- Tracks, vias
- 1,171, 148
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 30 May 2023
- Updated
- 31 May 2023
Overview
Keybraod is an open-source printed circuit board by Uepl, from the Uepl/keybroad repository on GitHub, published under the MIT licence. It is a 2-layer board of 304.8 × 99.9 mm with 156 parts on 87 nets, routed with 1,171 tracks and 148 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
156| 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 |
| 4 | 0.1u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4, C5, C6, C7 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R2 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3, R4 |
| 2 | 22p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5, R6 |
| 1 | #0 | Alps_Only:ALPS-1U | SW11 |
| 1 | #1 | Alps_Only:ALPS-1U | SW2 |
| 1 | #2 | Alps_Only:ALPS-1U | SW3 |
| 1 | #3 | Alps_Only:ALPS-1U | SW4 |
| 1 | #4 | Alps_Only:ALPS-1U | SW5 |
| 1 | #5 | Alps_Only:ALPS-1U | SW6 |
| 1 | #6 | Alps_Only:ALPS-1U | SW7 |
| 1 | #7 | Alps_Only:ALPS-1U | SW8 |
| 1 | #8 | Alps_Only:ALPS-1U | SW9 |
| 1 | #9 | Alps_Only:ALPS-1U | SW10 |
| 1 | ' | Alps_Only:ALPS-1U | SW42 |
| 1 | , | Alps_Only:ALPS-1U | SW53 |
| 1 | - | Alps_Only:ALPS-1U | SW12 |
| 1 | . | Alps_Only:ALPS-1U | SW54 |
| 1 | / | Alps_Only:ALPS-1U | SW55 |
| 1 | 0 | Alps_Only:ALPS-1U | SW64 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C8 |
| 1 | 500m | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | 60@100MHz | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | FB1 |
| 1 | ; | Alps_Only:ALPS-1U | SW41 |
| 1 | = | Alps_Only:ALPS-1U | SW13 |
| 1 | ATmega32U4-AU | Package_QFP:TQFP-44_10x10mm_P0.8mm | U1 |
| 1 | AVR-ISP-6 | random-keyboard-parts:Reset_Pretty-Mask | J1 |
| 1 | C_Small | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3 |
| 1 | GRV | Alps_Only:ALPS-1U | SW1 |
| 1 | HRO-TYPE-C-31-M-12 | Type-C:HRO-TYPE-C-31-M-12-HandSoldering | USB1 |
| 1 | PRTR5V0U2X | random-keyboard-parts:SOT143B | U2 |
| 1 | SW_SKQG | Button_Switch_SMD:SW_SPST_SKQG_WithStem | Resetpushbutton1 |
| 1 | XTAL | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | X1 |
| 1 | [ | Alps_Only:ALPS-1U | SW27 |
| 1 | \ | Alps_Only:ALPS-1.5U | SW29 |
| 1 | ] | Alps_Only:ALPS-1U | SW28 |
| 1 | a | Alps_Only:ALPS-1U | SW32 |
| 1 | b | Alps_Only:ALPS-1U | SW50 |
| 1 | bs | Alps_Only:ALPS-2U | SW14 |
| 1 | c | Alps_Only:ALPS-1U | SW48 |
| 1 | caplock | Alps_Only:ALPS-1.75U | SW31 |
| 1 | cmd | Alps_Only:ALPS-1.5U | SW61 |
| 1 | ctrl | Alps_Only:ALPS-1.5U | SW59 |
| 1 | d | Alps_Only:ALPS-1U | SW34 |
| 1 | del | Alps_Only:ALPS-1U | SW58 |
| 1 | down | Alps_Only:ALPS-1U | SW66 |
| 1 | e | Alps_Only:ALPS-1U | SW19 |
| 1 | enter | Alps_Only:ALPS-2.25U | SW43 |
| 1 | f | Alps_Only:ALPS-1U | SW35 |
| 1 | g | Alps_Only:ALPS-1U | SW36 |
| 1 | h | Alps_Only:ALPS-1U | SW37 |
| 1 | i | Alps_Only:ALPS-1U | SW24 |
| 1 | ins | Alps_Only:ALPS-1U | SW44 |
| 1 | j | Alps_Only:ALPS-1U | SW38 |
| 1 | k | Alps_Only:ALPS-1U | SW39 |
| 1 | l | Alps_Only:ALPS-1U | SW40 |
| 1 | lalt | Alps_Only:ALPS-1.25U | SW60 |
| 1 | left | Alps_Only:ALPS-1U | SW65 |
| 1 | lshift | Alps_Only:ALPS-2.25U | SW45 |
| 1 | m | Alps_Only:ALPS-1U | SW52 |
| 1 | n | Alps_Only:ALPS-1U | SW51 |
| 1 | o | Alps_Only:ALPS-1U | SW25 |
| 1 | p | Alps_Only:ALPS-1U | SW26 |
| 1 | pgdn | Alps_Only:ALPS-1U | SW30 |
| 1 | pgup | Alps_Only:ALPS-1U | SW15 |
| 1 | q | Alps_Only:ALPS-1U | SW17 |
| 1 | r | Alps_Only:ALPS-1U | SW20 |
| 1 | ralt | Alps_Only:ALPS-1.25U | SW63 |
| 1 | right | Alps_Only:ALPS-1U | SW67 |
| 1 | rshift | Alps_Only:ALPS-1.75U | SW56 |
| 1 | s | Alps_Only:ALPS-1U | SW33 |
| 1 | spacebar | Alps_Only:ALPS-6.5U | SW62 |
| 1 | t | Alps_Only:ALPS-1U | SW21 |
| 1 | tab | Alps_Only:ALPS-1.5U | SW16 |
| 1 | u | Alps_Only:ALPS-1U | SW23 |
| 1 | up | Alps_Only:ALPS-1U | SW57 |
| 1 | v | Alps_Only:ALPS-1U | SW49 |
| 1 | w | Alps_Only:ALPS-1U | SW18 |
The 153 most common of 156 parts.
Questions
How big is the Keybraod PCB?
It measures 304.8 × 99.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Keybraod use?
156 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 Keybraod KiCad files?
From the Uepl/keybroad repository on GitHub, at the commit this page was made from: the board is keybraod.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keybraod 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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