2 layers247.7 × 127 mm
Euclid36
sadekbaroudi/euclid36
At the time of creation, using Kicad 5.1.9 - This may not work with future versions
130 parts24
2 layers281.7 × 77 mm
4040
lexerq/4040- Size
- 281.7 × 77 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 128
- Nets
- 105
- Pads
- 609
- Tracks, vias
- 906, 22
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 20 Aug 2024
- Updated
- 22 Dec 2024
Overview
4040 is an open-source printed circuit board by lexerq, from the lexerq/4040 repository on GitHub. It is a 2-layer board of 281.7 × 77 mm with 128 parts on 105 nets, routed with 906 tracks and 22 vias.
It is built around the ATMEGA32U4-AU, USBLC6-2SC6 and WS2812B. Its parts include 49 diodes, 7 capacitors, 7 resistors, 2 ICs and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
3
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)
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
README
README.md
Parts
128| Qty | Value | Footprint | References |
|---|---|---|---|
| 49 | D_Small | other_keyboard_things:5,5ForKBD | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +33 |
| 35 | MX-NoLED | MX_Alps_Hybrid:MX-1U-NoLED | MX1, MX2, MX10, MX11, MX12, MX13, MX16, MX17, MX18, MX19, MX20, MX21, MX22, MX23, MX24, MX25 +19 |
| 10 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | HL1, HL2, HL3, HL4, HL5, HL6, HL7, HL8, HL9, HL10 |
| 7 | MX-NoLED | MX_Alps_Hybrid:MX-1.25U-NoLED | MX40, MX41, MX42, MX46, MX47, MX48, MX49 |
| 3 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C5 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C3, C4 |
| 2 | 5K1 | Resistor_SMD:R_0805_2012Metric | R5, R6 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | 16MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C7 |
| 1 | 500 | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric | F2 |
| 1 | ATmega32U4-A | Package_QFP:TQFP-44_10x10mm_P0.8mm | U2 |
| 1 | MX-NoLED | MX_Alps_Hybrid:MX-2U-NoLED | LSH1 |
| 1 | MX-NoLED | MX_Alps_Hybrid:MX-1.75U-NoLED | MX14 |
| 1 | MX-NoLED | MX_Alps_Hybrid:MX-2.25U-NoLED | ENTER1 |
| 1 | MX-NoLED | MX_Alps_Hybrid:MX-2.75U-ReversedStabilizers-NoLED | RS1 |
| 1 | MX-NoLED | MX_Alps_Hybrid:MX-2.75U-NoLED | RSH1 |
| 1 | MX-NoLED | MX_Alps_Hybrid:MX-1.5U-NoLED | TAB1 |
| 1 | MX-NoLED | MX_Alps_Hybrid:MX-2.25U-ReversedStabilizers-NoLED | LS1 |
| 1 | SW_Push | Button_Switch_SMD:SW_DIP_SPSTx01_Slide_Omron_A6S-110x_W8.9mm_P2.54mm | SW1 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
Questions
How big is the 4040 PCB?
It measures 281.7 × 77 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 4040 use?
128 parts, built around the ATMEGA32U4-AU, USBLC6-2SC6 and WS2812B. 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 4040 KiCad files?
From the lexerq/4040 repository on GitHub, at the commit this page was made from: the board is 4040.kicad_pcb and its schematic 4040.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 4040 design in my own project?
Its repository states no licence, so its author keeps all rights: ask lexerq before reusing the design.
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