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LED bat. indicator

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RC Bot dude

New Member
Does anyone know how I might have a row of LEDs that act as a battery indicator (say 5 in a row and if 1 5th of the battery power was gone only 4 LEDs would be lit).
 

Yatin

New Member
Series Connection

Hi there,
try to connect them thru a multiplexer having i/p from adc & try some similar stuff using adc/resistor divider for checking app.voltages

Bye,
Yatin
 

seeker

New Member
Hey bot dude, what voltage is the battery?
 

spiralbrain

New Member
the above circuit can be modified to support two variable resistances that allow u to control both the upper as well as the lower limit of voltage to be measured ,refer to the LM3914 datasheeet for the pinouts.
 
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