Hi. I have an odd situation and I hope you guys can help me out of little jam. I'm working on a car that has a door trigger circuit that needs to turn on some lights, but each door circuit rests at ground and switches to open when the door opens up. This would not really be an issue if I wanted to keep a spst relay energized all the time, but I don't.
So, my question is: Is there a simple (easy for the novice) circuit I could build that could look at 4 ground inputs and give me an output (either pos or neg) when one goes away?
I'm pretty sure I can do a simple project on a breadboard as I do have some soldering skills. I also just took a look at the 5 zone alarm on the free electronics circuits website linked at the bottom of each page here.
I am really clueless, but it seems that if I use a single CMOS 4072 I can get the job done. Now I'll let my ignorance shine... Can I just put that chip on a breadboard and solder the door trigger wires, power and ground and the output wire right to it?
Please help....
Thanks all... Cool forum here....
So, my question is: Is there a simple (easy for the novice) circuit I could build that could look at 4 ground inputs and give me an output (either pos or neg) when one goes away?
I'm pretty sure I can do a simple project on a breadboard as I do have some soldering skills. I also just took a look at the 5 zone alarm on the free electronics circuits website linked at the bottom of each page here.
I am really clueless, but it seems that if I use a single CMOS 4072 I can get the job done. Now I'll let my ignorance shine... Can I just put that chip on a breadboard and solder the door trigger wires, power and ground and the output wire right to it?
Please help....
Thanks all... Cool forum here....