2 Didn’t you turn the mutation off to see if you find a the optimum? I made the Gaussian Mutation with some modifications. Now, anenirswg your questions:1 What kind of ES did you used?! (a,b) or (a+b)? My ES is configured by this way: Parents Population = 60 Offspring Population = 60 Total of Generations = 5000 Kind of ES = (a+b)ES, because each parent generates one offspring and the selection occurs in the population formed by the parents + offspring. Hello!!I’m so glad that you had made a comment in my blog, Genetic Argonaut. If the voltage is lower than the bottom step, all of the LEDs will stay off. If the voltage is higher than the top step, the highest LED (D10) will remain on. Now watch the LED display panel for a battery level indication. Note that VR1 and VR3 interact so it may be necessary to perform the adjustments a few times to get it right.Īfter construction and calibration, fit the voltmeter unit in the dashboard and connect input leads across the 12 Volt vehicle battery terminals, with correct polarity. Now set the voltage to 10.5V and adjust VR3 until the lowest LED (D1) just turns on. Adjust VR1 and repeat the previous adjustment until the span is 4.5V. Adjust the supply up until the last LED just comes on, measure that voltage and subtract the first voltage, this is the span.

Adjust the power supply until the first LED just comes on, measure that voltage. In this case, set the lab power supply to 12V and adjust VR3 until one of the green LEDs (D4-D7) light. If the span between the end points of VR1 is 4.5V, the circuit is ready to use as a 10.5 to 15V scale battery monitor.Īdjust the lab power supply from 9V to 15V and check where the meter is reading, it may not read at all until the potentiometers are near the right range. Connect the external volt meter across pins 6 and 4 of IC1 and adjust VR2 for a reading of 1.2 volts. It will be necessary to have an adjustable regulated DC lab power supply and a good quality digital volt meter (DVM) to perform the calibration. Different colored LEDs can be used for the voltage level indicators(D1-D10). It is possible to set the meter to read equal steps across a variety of upper and lower voltages. Car Battery Monitor schematic for 12V batteries This divider scales the input voltage down to a range that is useful to IC1. The measured voltage is fed in on pin 5 via the voltage divider consisting of R1 and VR1. This is fed via voltage dividers VR2and R2 to the internal reference input pins(4&8) to set the range that the meter is sensitive to. IC1 outputs a steady voltage on pin 7 from the internal voltage reference. This IC is operated in the expanded-scale mode so that the circuit responds in the 10-16V range. The voltmeter is an expanded scale type that indicates small voltage steps over the 10 to 16 volt range for 12 volt batteries.Īt the heart of the circuit is a ubiquitous dot-bar volt meter LM3914N (IC1). Here is an interesting Car Battery Monitor circuit of a low power electronic dc voltmeter circuit that can be used with car electric systems that run on 12 volt batteries.

Car battery monitor kit