Hi Guys,
I'm new here. Not too new in electronics, but my skills and knowledge is fairly limited. It'll hopefully improve the more time I spend here.
I'm thinking to build in a dynamic redline indicator into my cars tachometer using LEDs like some BMWs have.
The idea is that the redine goes higher and higher as the oil in the engine gets hotter.
I already have an aftermarket oil temperature gauge in my car, using an NTC sensor (40C ->925 Ohms --> 150C -> 32 Ohms), so I could tap into that or I could use a similar sensor only for this dynamic redline job.
I would like all (8 or 10) LEDs to be lit until the temp reaches 40C (105F) and than they would all turn off one by one as the temperature rises. I would like them all off at 75C (167F). I will work out the resistance values from the sensor for these temperatures.
Now finally the question
Could I build a circuit for this purpose using LM3914 or LM3915/16?
Please suggest some direction I could start with.
Soldering, measuring with DMM or reading schematics is not a problem, but building something complicated might be, so please suggest something simple.
Thank you kindly in advance,
Julius
I'm new here. Not too new in electronics, but my skills and knowledge is fairly limited. It'll hopefully improve the more time I spend here.
I'm thinking to build in a dynamic redline indicator into my cars tachometer using LEDs like some BMWs have.
The idea is that the redine goes higher and higher as the oil in the engine gets hotter.
I already have an aftermarket oil temperature gauge in my car, using an NTC sensor (40C ->925 Ohms --> 150C -> 32 Ohms), so I could tap into that or I could use a similar sensor only for this dynamic redline job.
I would like all (8 or 10) LEDs to be lit until the temp reaches 40C (105F) and than they would all turn off one by one as the temperature rises. I would like them all off at 75C (167F). I will work out the resistance values from the sensor for these temperatures.
Now finally the question
Could I build a circuit for this purpose using LM3914 or LM3915/16?
Please suggest some direction I could start with.
Soldering, measuring with DMM or reading schematics is not a problem, but building something complicated might be, so please suggest something simple.
Thank you kindly in advance,
Julius