Now that my LED bar fuel gauge is functional, I would like to have the same type output for my bikes voltage level. I have built and tested the one below, but am bothered by it.
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The author says
However, adjustment of the pot does not affect the voltage reading above that is alread at 1,25V. I (with little to no knowledge) feel as though this circuit is possibly over complicated. Ideas...suggestions. 10.5 to 15V is a good range. TIA
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The author says
The first adjustment is to obtain 1.2 volts between U1's pins 7 & 4. I'm trying to remember why, but it has something to do with the LM3914's scaling or something. Do this by applying 12 volts (or so) to the circuit and adjusting VR2 until the 1.2 volt level is read.
However, adjustment of the pot does not affect the voltage reading above that is alread at 1,25V. I (with little to no knowledge) feel as though this circuit is possibly over complicated. Ideas...suggestions. 10.5 to 15V is a good range. TIA