I made this simple LED flasher as a safety blinker for my bicycle.
This circuit it only consists of two transistors, two capacitors and four resistors. You can control the flash rate by changing the size of the resistors or the capacitors.
Parts:
2x 33K (changing this resistors you can control the flashing speed)
2x 47Ω
2x 22uF (bigger capacitors - slower the flasher)
2x 2N4401 or other NPN General-Purpose Amplifier
2x LED
1x Switch
Schematics
PCB
This circuit it only consists of two transistors, two capacitors and four resistors. You can control the flash rate by changing the size of the resistors or the capacitors.
Parts:
2x 33K (changing this resistors you can control the flashing speed)
2x 47Ω
2x 22uF (bigger capacitors - slower the flasher)
2x 2N4401 or other NPN General-Purpose Amplifier
2x LED
1x Switch
Schematics
PCB
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