I'm trying to build a gauge using the NS LM3914, I need 20leds , 0.5-4.5v signal input range, 20ma led current and with 14.8v supply. I have read the NS paper on the LM3914, I built the circuit on page 2 and 15 they both worked but I'm not sure how to change the input range from 0-2.4v to 0.5-4.5v signal input. I want to use this gauge to quickly check any 0.5-4.5v sensor in a car with the main supply coming from the battery. If I need to clarify anything please let me know.
Thank you in advance,
Bob
Thank you in advance,
Bob