I'm trying to create an accessory controller for my 2001 BMW motorcycle. To those who aren't familiar with the older BMWs, there is a separate "turn signal cancel switch" on the handle bars that when pressed, grounds an input on the flasher relay and stops the lights from flashing.
I would like to use this ground signal as a trigger to turn on/off some auxiliary lights. .
I want to make it so that:
- You hold down the turn signal cancel button for 3-5 seconds to turn on the aux lights.
- You tap the turn signal cancel button to turn the lights off.
I've looked at some examples using a 555 chip LIKE THIS however this example uses a constant trigger voltage source. I would like to keep the footprint a small as possible. Ideally, I would like the footprint of the entire circuit to be the size of a typical automobile relay.
There is an aftermarket controller already available that does this however I have additional ideas that will incorporate this controller into a fuse block/accessory all-in-one to keep the footprint small. Plus I want to LEARN!
Any help you can provide will be greatly appreciated! Thanks in advance!