4 layers40.6 × 17.8 mm
2 layers328.6 × 95.2 mm
Attempt2-pcb
sedxr/attempt2-pcb1- Size
- 328.6 × 95.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 175
- Nets
- 115
- Pads
- 697
- Tracks, vias
- 1,869, 26
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 7 Mar 2022
- Updated
- 26 Mar 2022
Overview
Attempt2-pcb is an open-source printed circuit board by sedxr, from the sedxr/attempt2-pcb repository on GitHub, published under the MIT licence. It is a 2-layer board of 328.6 × 95.2 mm with 175 parts on 115 nets, routed with 1,869 tracks and 26 vias.
It is built around the ATMEGA32U4-MU and SRV05-4. Its parts include 85 switches, 75 diodes, 7 capacitors, 4 resistors and 2 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATMEGA32U4-MU
VQFN-44-EP(7x7)-40℃~+85℃ 10bit 16MHz 1KB 2.5KB 2.7V~5.5V 26 32KB 8 Bit AVR Built-in FLASH VQFN-44-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
SRV05-4
SOT-23-6L-55℃~+150℃ 15V 1pF 4A 5V 5uA 6V 80W ESD Four channels IEC 61000-4-2、IEC 61000-4-5 Unidirectional SOT-23-6L ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)
README
README.mdattempt2-pcb
Parts
175| Qty | Value | Footprint | References |
|---|---|---|---|
| 75 | D_Small | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +59 |
| 64 | keyboard_parts_KEYSW | MX_Only:MXOnly-1U-NoLED | K1, K2, K10, K11, K12, K13, K14, K15, K17, K18, K19, K21, K22, K23, K24, K25 +48 |
| 7 | keyboard_parts_KEYSW | MX_Only:MXOnly-1.25U-NoLED | K35, K53, K70, K72, K74, K77, K80 |
| 5 | keyboard_parts_KEYSW | MX_Only:MXOnly-1.5U-NoLED | K20, K33, K76, K78, K81 |
| 3 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C4, C5, C6 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R1, R4 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric | R2, R3 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | keyboard_parts_KEYSW | MX_Only:MXOnly-1.75U-NoLED | K38, K67 |
| 2 | keyboard_parts_KEYSW | MX_Only:MXOnly-2.25U-NoLED | K51, K55 |
| 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 | ATmega32U4-MU | Package_DFN_QFN:QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mm | U1 |
| 1 | Conn_01x04 | random-keyboard-parts:JST-SR-4 | J1 |
| 1 | Reset | random-keyboard-parts:SKQG-1155865 | SW1 |
| 1 | SRV05-4 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | keyboard_parts_KEYSW | MX_Only:MXOnly-ISO-NoLED | K36 |
| 1 | keyboard_parts_KEYSW | MX_Only:MXOnly-2U-NoLED | K16 |
| 1 | keyboard_parts_KEYSW | MX_Only:MXOnly-6.25U-ReversedStabilizers-NoLED | K73 |
| 1 | keyboard_parts_KEYSW | MX_Only:MXOnly-7U-ReversedStabilizers-NoLED | K79 |
Questions
How big is the Attempt2-pcb PCB?
It measures 328.6 × 95.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Attempt2-pcb use?
175 parts, built around the ATMEGA32U4-MU and SRV05-4. 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 Attempt2-pcb KiCad files?
From the sedxr/attempt2-pcb repository on GitHub, at the commit this page was made from: the board is attempt2-pcb.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Attempt2-pcb 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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