funkychicken9000
New Member
I'm building a tacho for a race car, and I was originally going to use an LM2917 f-v converter and a LM3914 LED bar chart chip.
Thing is, the way I was going to supply the LM2917 with a frequency was through the ECU, which would output a logic level square wave of varying frequency.
I read on these boards that the LM2917 needs a AC input, and won't work off a pulsed DC signal. Any way round this?
Cheers all!
Thing is, the way I was going to supply the LM2917 with a frequency was through the ECU, which would output a logic level square wave of varying frequency.
I read on these boards that the LM2917 needs a AC input, and won't work off a pulsed DC signal. Any way round this?
Cheers all!