S2'2012 FYP 2 -Week 9

For this week I have design battery level indicator circuit. This circuit function to proof my battery has been charge by the hydro system. To make this circuit I have done a research in internet. After that I have design at isis software.

This battery level indicator circuit use ic LM3914,LED, Resistor and potential meter. The potential meter is very important because it can works as battery that have variety of voltage. This Battery level sensor function is when i turn the potential meter lower, the LED will be off slowly until all of it off. When i turn the potential meter higher, the LED will be turn ON. All LED turn on means that battery is fully charge for 12 volts,