But it strikes me it must be pretty straightforward to make one
I takes a 1second pulse from a 12-14v source and this switches on the output to fog lights for example.. a shorter pulse switches it off.. but a constant input has no effect
(so useing the high beam you can switch on/off a device but unless you use a quick/slow pulse it does nothing)
Any ideas? could anyone help with a basic circuit design and ideas of the sort of components needed?
Hi man,
You can interrupts of Microcontroller like PIC 16F84 (5 $ ii think). In rising edge of the pulse Timer is started.
If fall edge cams before 1 second switch,
if fall edge comes between (1-s) and (1+s) then swich off where s is the marge of sensibility that you can chose.
Hope it help
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