2 layers19 × 76 mm
Sub
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
15 parts3kApache-2.0
2 layers83.5 × 30 mm
ResolutionWeek4
Asurant/BinaryCounterPCB- Size
- 83.5 × 30 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 20
- Pads
- 52
- Tracks, vias
- 117, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 18 Apr 2026
- Updated
- 18 Apr 2026
Overview
ResolutionWeek4 is an open-source printed circuit board by Asurant, from the Asurant/BinaryCounterPCB repository on GitHub. It is a 2-layer board of 83.5 × 30 mm with 15 parts on 20 nets, routed with 117 tracks and 0 vias.
Its parts include 8 diodes, 3 resistors, 2 switches, 1 IC and 1 connector.
README
README.mdBinaryCounterPCB
I'm made a binary counter that uses LEDs to show 1s and 0s and can count up to 255. It was made with the help of a CD4040 IC.
Features
This board has:
- Decimal Values Of Each Binary LED
- An Addition Button For Adding 1 To The Binary
- A Rest Button To Reset The LEDs
Schematic
PCB
BOM
| Designator | Footprint | Quantity | Value |
|---|---|---|---|
| D1, D2, D3, D4, D5, D6, D7, D8 | LED_D5.0mm | 8 | LED |
| J1 | USB_A_Molex_67643_Horizontal | 1 | USB_A |
| R1, R2 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | 2 | 1k |
| R3 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | 1 | 470 |
| SW1, SW2 | SW_PUSH_6mm | 2 | SW_Push |
| U1 | DIP-16_W7.62mm | 1 | 4040 |
Assembly
Overall the components are interchangable as long as you keep them between the same type of components. Put the USB A where is says J1, the CD4040 where it says U1, the switches on SW1 and SW2 (They are the same kind so don't worry about which one you're using), LEDs can be put in whatever order as long as they are put in properly with the positive and negatives going where they should go. However you need to be careful with the resistors. While R1 and R2 are 1k, R3 is 470. So put your 1k resistors to the locations to the right of the CD4040 and put your 470 resistor below the USB A port.
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | LED | LED_THT:LED_D5.0mm | D1, D2, D3, D4, D5, D6, D7, D8 |
| 2 | 1k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2 |
| 1 | 4040 | Package_DIP:DIP-16_W7.62mm | U1 |
| 1 | 470 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3 |
| 1 | USB_A | Connector_USB:USB_A_Molex_67643_Horizontal | J1 |
Questions
How big is the ResolutionWeek4 PCB?
It measures 83.5 × 30 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ResolutionWeek4 use?
15 parts. 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 ResolutionWeek4 KiCad files?
From the Asurant/BinaryCounterPCB repository on GitHub, at the commit this page was made from: the board is src/kicad/ResolutionWeek4.kicad_pcb and its schematic src/kicad/ResolutionWeek4.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ResolutionWeek4 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Asurant before reusing the design.
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