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 layers124.8 × 52.4 mm
4-keys
paulsvc/4-keys4 Keys PCB
- Size
- 124.8 × 52.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 46
- Pads
- 146
- Tracks, vias
- 329, 32
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 23 Mar 2020
- Updated
- 26 Mar 2020
Overview
4-keys is an open-source printed circuit board by paulsvc, from the paulsvc/4-keys repository on GitHub. It is a 2-layer board of 124.8 × 52.4 mm with 30 parts on 46 nets, routed with 329 tracks and 32 vias.
It is built around the ATMEGA32U4-AU and PRTR5V0U2X. Its parts include 7 capacitors, 6 resistors, 5 diodes, 2 connectors and 1 IC. 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
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | D_SOD-123 | Diode_SMD:D_0805_2012Metric | D2, D3, D4, D5 |
| 4 | MX-NoLED | MX_Only:MXOnly-1U-Hotswap | MXDn1, MXLeft1, MXRight1, MXUp1 |
| 3 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C3, C4, C6 |
| 2 | 10K | Resistor_SMD:R_0805_2012Metric | R3, R6 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 5.1K | Resistor_SMD:R_0805_2012Metric | R4, R5 |
| 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 | C5 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | ATmega32U4-AU | Package_QFP:TQFP-44_10x10mm_P0.8mm | U1 |
| 1 | LOGO | MX_Only:cc | G*** |
| 1 | OLED1 | Connector_JST:JST_EH_S4B-EH_1x04_P2.50mm_Horizontal | J1 |
| 1 | OLED2 | Connector_JST:JST_EH_S4B-EH_1x04_P2.50mm_Horizontal | J2 |
| 1 | PRTR5V0U2X | Package_TO_SOT_SMD:SOT-143 | D1 |
| 1 | SW_Reset | random-keyboard-parts:SKQG-1155865 | SW1 |
| 1 | mullet-pcb-rescue_HRO-TYPE-C-31-M-12-Type-C | mullet:HRO-TYPE-C-31-M-12-HandSoldering | USB1 |
Questions
How big is the 4-keys PCB?
It measures 124.8 × 52.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 4-keys use?
30 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 4-keys KiCad files?
From the paulsvc/4-keys repository on GitHub, at the commit this page was made from: the board is 4Keys.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 4-keys design in my own project?
Its repository states no licence, so its author keeps all rights: ask paulsvc before reusing the design.
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