Newbie here, looks like a great site!
I've got an old El Camino , and I'm converting it to the factory guage option. I'm in the process of restoring the guage cluster itself, and an idea hit me.
Why not install a small, high intensity LED into the guage face, and have it turn on when the "danger zone" is approaching? Very similar to how a modern cars "low fuel" lamp comes on. Just an attention getter.
Here's the rub (s)....
1) 12vdc, neg ground system
2) The impedance of the circuits/sending units is in the range of .5Ω to 90Ω (cold to hot - temp guage, full to empty - fuel guage)
Any circuit or driver ideas?
I've got an old El Camino , and I'm converting it to the factory guage option. I'm in the process of restoring the guage cluster itself, and an idea hit me.
Why not install a small, high intensity LED into the guage face, and have it turn on when the "danger zone" is approaching? Very similar to how a modern cars "low fuel" lamp comes on. Just an attention getter.
Here's the rub (s)....
1) 12vdc, neg ground system
2) The impedance of the circuits/sending units is in the range of .5Ω to 90Ω (cold to hot - temp guage, full to empty - fuel guage)
Any circuit or driver ideas?