very good points. I could also get power from other sources if needed such as the door ajar light or dome light. I'll have to pull up the wiring diagrams to see my best choice. I remember a couple of fun drives with my old jeep shutting off. toll roads when I reached out to get them money mostly. an...

After researching a bit I've decided to research to optocoupler more. If nothing else its a lot cheaper. From what I read to use it you need to use resistors to bring the power to a level it can handle. I'm hoping you could help me with that. I just want to make sure I'm looking at the right specs a...

thank you sprinkmeier. The reason I wanted to use a PI to do this is because it fits in with my plans for the car. (which is making a high tech but low budget car) unless anyone else knows of a easier way to do what I need (such as a sensor) I'll probably work with what I know. I assume I could use ...

Hello everyone. I am considering starting a project and would like some input. This would basically be a simple security system on my car. The basic idea is you would activate a momentary switch before starting the car. the car would run indefinitely until the door is opened. after the door is opene...