2 layers56.5 × 35.5 mm
DCMotorSpeedController
8amiul/DCMotorSpeedController555
A design of DC Motor speed controller using PWM technique with a 555 Timer IC
15 parts
2 layers34.5 × 16.5 mm
Digital flasher unit
Madarakante/digital-flasher-unitKiCad: 555 timer-based digital flasher unit for car turn signals
- Size
- 34.5 × 16.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 8
- Pads
- 32
- Tracks, vias
- 61, 8
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 16 Sep 2026
- Updated
- 16 Sep 2026
Overview
Digital flasher unit is an open-source printed circuit board by Madarakante, from the Madarakante/digital-flasher-unit repository on GitHub. It is a 2-layer board of 34.5 × 16.5 mm with 11 parts on 8 nets, routed with 61 tracks and 8 vias.
It is built around the NE555P and IRLZ44N. Its parts include 4 capacitors, 4 resistors, 1 IC, 1 transistor and 1 connector.
Main components
2Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 1 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4 |
| 1 | 12K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 12uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 1 | 24K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | 39301039 | footprints:CONN_55660330-SD_MOL | J1 |
| 1 | IRLZ44N | PCM_JLCPCB:D_SOT-23 | Q1 |
| 1 | NE555P | Package_DIP:DIP-8_W7.62mm | U1 |
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Questions
How big is the Digital flasher unit PCB?
It measures 34.5 × 16.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Digital flasher unit use?
11 parts, built around the NE555P and IRLZ44N. 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 Digital flasher unit KiCad files?
From the Madarakante/digital-flasher-unit repository on GitHub, at the commit this page was made from: the board is Digital Flasher Unit.kicad_pcb and its schematic Digital Flasher Unit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Digital flasher unit design in my own project?
Its repository states no licence, so its author keeps all rights: ask Madarakante before reusing the design.