2 layers40 × 34 mm
2 layers76.4 × 87.3 mm
ResolutionHardwareWeek2
Asurant/LED_PCB_Circuit- Size
- 76.4 × 87.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 37
- Nets
- 24
- Pads
- 80
- Tracks, vias
- 110, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 21 Mar 2026
- Updated
- 21 Mar 2026
Overview
ResolutionHardwareWeek2 is an open-source printed circuit board by Asurant, from the Asurant/LED_PCB_Circuit repository on GitHub. It is a 2-layer board of 76.4 × 87.3 mm with 37 parts on 24 nets, routed with 110 tracks and 0 vias.
Its parts include 12 resistors, 10 capacitors, 8 diodes, 6 transistors and 1 connector.
README
README.mdLED PCB Circuit
I made a firefly pcb that uses an astable multivibrator stack to turn on and off these LEDs at the bottom. They switch between the outer most and the inner most LEDs and using an RC circuit the bottom LEDs turn on and turn off a bit slower than the upper LEDs.
Simulation
The circuit is made out of 3 astable multivibrators and 4 small LED chains. The main multivibrator switches between the left and right multivibrators that connect to it. Then each of the secondary multivibrators switch between the 2 LED chains that they are connected to. The innermost LED chain has a higher time constant in comparison to the outer most LED chain because of the higher capacitator value. The RC circuit of the LED chaina also leads to the second LED turning on and off slower.
Try It Out!
Schematic
PCB
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | LED | LED_THT:LED_D5.0mm | D1, D2, D3, D4, D5, D6, D7, D8 |
| 6 | 18u | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2, C3, C4, C5, C6 |
| 6 | 1k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2, R3, R6, R7, R10, R11 |
| 6 | Q_NPN_BCE | Package_TO_SOT_THT:TO-92L_Inline_Wide | Q1, Q2, Q3, Q4, Q5, Q6 |
| 4 | C | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C7, C8, C9, C10 |
| 3 | 300 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R8, R9 |
| 3 | 330 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R4, R5, R12 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
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Questions
How big is the ResolutionHardwareWeek2 PCB?
It measures 76.4 × 87.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ResolutionHardwareWeek2 use?
37 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 ResolutionHardwareWeek2 KiCad files?
From the Asurant/LED_PCB_Circuit repository on GitHub, at the commit this page was made from: the board is src/kicad/ResolutionHardwareWeek2.kicad_pcb and its schematic src/kicad/ResolutionHardwareWeek2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ResolutionHardwareWeek2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Asurant before reusing the design.