If you car was broken into and you want to protect it, your best bet would be to buy an security system, since they already tie into everything, and come with warranties for the parts, as well as if your car is broken into. If you do want to make it yourself, go for simplicity so this doesn't turn into a big project when it doesn't need to be. For stuff like the doors, tie it into the dome light or the door ajar light on your dash. Hook up a relay to draw less current too. For the trunk, use the light in the trunk. Then get a shock/vibration sensor with adjustable sensativity, whatever else you need. It sounds completely toable though. One final thing you should add, a battery power supply. That way if someone pops your hood and cuts the power, it can detect it and still set off the siren. Self-powered sirens are good too. Cut the power to mine once when it was going off and it was blaring for 30+ minutes. Ken ----- Original Message ----- From: "Sean Rollins (VE7SNR)" To: Sent: Wednesday, January 24, 2001 3:50 PM Subject: [PIC] Any ideas on a car security system? > > Hi guys. I've been watching the list for quite some time now, but haven't > had too much input. I'm working on a car security system project for my car > (because it was broken into yesturday and I'm pissed off). Does anyone have > any ideas in mind? I'd like to use a 16F84, because I have them. I just > need to know how I might go about it. I think I can use the door sensors > that are already in the car (do they work on ground completion?), and I was > thinking something along the lines of a rf keyfob for enable/disable. Then > of course the blinking led etc. etc.. So, lets hear it, and ideas? > > Thanks, > > Sean Rollins, VE7SNR > Mountain View Computers > Vancouver Island, B.C. > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.