Hi All,
As some of you may know, I am into making things for my car.
I thought I'd be smart, and have a flashing LED, so it looks like I have a car alarm. Now, I ran a wire from the car battery, to my central locking. I split this wire, so that I could get a direct 12v from the battery, even with the ignition off.
Now that worked ok for a while, until I needed to turn the light off, so I put in a switch. This also worked for a while, until I thought about controlling the LED from the ignition.
I went out and got a relay from the electronics store, 5 pins, which was supposed to turn off the circuit when current passed into the coil.
This is the relay I used:
**broken link removed**
Now, I had the positive wire coming from radio power wire, into pin 85. Pin 86 went straight to ground. The wire from the battery went into pin 30.
I connected the LED negative to the car ground, and put the positive onto pin 87.
I left 87a disconnected.
With the car off, the LED was fine.. at this stage I was happy.. I then clicked over the ignition.. the LED went off, the radio came on, I was very happy. My friend then said to me, Tim, there is smoke coming from your car.. I thought he was joking so I laughed a bit, then my other friend said very seriously, TIM THERE IS SMOKE COMING FROM YOUR CAR.
I got soo worried, and the wire coming from the battery had melted. The wire inside was just particles of metal, and I have no idea why..
If Anyone knows how to fix this, please drop me a reply, asap.
Thanks in advance,
Tim.
As some of you may know, I am into making things for my car.
I thought I'd be smart, and have a flashing LED, so it looks like I have a car alarm. Now, I ran a wire from the car battery, to my central locking. I split this wire, so that I could get a direct 12v from the battery, even with the ignition off.
Now that worked ok for a while, until I needed to turn the light off, so I put in a switch. This also worked for a while, until I thought about controlling the LED from the ignition.
I went out and got a relay from the electronics store, 5 pins, which was supposed to turn off the circuit when current passed into the coil.
This is the relay I used:
**broken link removed**
Now, I had the positive wire coming from radio power wire, into pin 85. Pin 86 went straight to ground. The wire from the battery went into pin 30.
I connected the LED negative to the car ground, and put the positive onto pin 87.
I left 87a disconnected.
With the car off, the LED was fine.. at this stage I was happy.. I then clicked over the ignition.. the LED went off, the radio came on, I was very happy. My friend then said to me, Tim, there is smoke coming from your car.. I thought he was joking so I laughed a bit, then my other friend said very seriously, TIM THERE IS SMOKE COMING FROM YOUR CAR.
I got soo worried, and the wire coming from the battery had melted. The wire inside was just particles of metal, and I have no idea why..
If Anyone knows how to fix this, please drop me a reply, asap.
Thanks in advance,
Tim.