Screen Battery Indicator

667

14:34:57

Step 1: 11 Volts 
Step 2: 12 Volts 
Step 3: 13 Volts 
Step 4: 14 Volts 
I have built a simply and little part of this beautiful circuit, You can add extra steps whatever you want, you can also change the voltage of the Zender Diode. 
In the real life you can easily changes the green leds with RGB ones,  and set the circuit like this: Low level of Battery  --> Red Led;  Medium level of Battery  -->Yellow Led; High level of Battery --> Green Led.

published 10 years ago

roops1967

10 years ago

Cool! I've tried answering your question on my dark energy circuit :)

thebjoern

9 years ago

Instead of changing the power source, is it also possible to use a potentiometer on a fixed (5V in my case) power source? For learning purposes I wanted to create a circuit where depending on a potentiometer 0-4 LEDs light up (I got appropriate Zener diodes which break down at 3.3, 3.9, 4.3 and 4.7V)

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