build pulse generator 5 sec 12v

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ChevyLT1Camaro94

Joined Jan 9, 2009
33
hello all, here is what i need to do. i need a circuit that when it gets a constant 12v input, will pulse 12v at maybe 100mA or less every 5 seconds roughly. doesn't need to be super accurate. i want to use this to cycle through the flash patterns on my emergency lights. i was thinking a 555 timer but I'm not exactly an electronic engineer. any help is appreciated

12v constant input
pulse 12v 100mA output every ~5 seconds
 

Wendy

Joined Mar 24, 2008
23,042
The owners of All About Circuits has elected not to host discussions of automotive electrical system modifications/enhancements due to safety concerns, the potential of legal ramifications and the possible circumvention of vehicle regulations at the state and federal level.

This thread is against the AAC forum rules, Chapter 6, as seen here:

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