Okay, hopefully that title isn't completely misleading, but I think that is what I am looking for. First off, new user to the forum, so thanks to all those who can lend a hand. Here's my problem:
I cannabilized a Hood Latch mechanism from a donor vehicle that has a built in switch to indicate that the hood is either open or closed. In a perfect world, it would have been too easy that when the hood is open the switch is open and when the hood is closed the switch reads closed. On the contrary, when the hood is open the switch reads 500 ohms and when closed it reads 1,000 ohms. All I need is the switch to be off when the latch is closed and to turn on a 12volt DC warning lamp (LED or incandescant) when the latch is open. I am trying to keep the circuit as low tech as possible and would like to avoid a logic circuit or IC chips if I can.
Ideally I would like a simple relay that trips when the input voltage drops as a result of the resistance change from flipping states. I have been searching on and off for a while for a simple off the shelf unit, but not even sure that one exists or that I am even searching for the right thing in the first place.
Any help would be greatly appreciated - Thanks in advance.
I cannabilized a Hood Latch mechanism from a donor vehicle that has a built in switch to indicate that the hood is either open or closed. In a perfect world, it would have been too easy that when the hood is open the switch is open and when the hood is closed the switch reads closed. On the contrary, when the hood is open the switch reads 500 ohms and when closed it reads 1,000 ohms. All I need is the switch to be off when the latch is closed and to turn on a 12volt DC warning lamp (LED or incandescant) when the latch is open. I am trying to keep the circuit as low tech as possible and would like to avoid a logic circuit or IC chips if I can.
Ideally I would like a simple relay that trips when the input voltage drops as a result of the resistance change from flipping states. I have been searching on and off for a while for a simple off the shelf unit, but not even sure that one exists or that I am even searching for the right thing in the first place.
Any help would be greatly appreciated - Thanks in advance.