Today I am going to make a Battery level indicator that will show the percentage of up-to 15V Battery.This circuit is very easy to make and it is very cheap.
Let's get started,
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Step 1: Take All Parts As Shown Below
Step 2: Solder All Components in PCB
Solder all components in PCB according to this circuit diagram.
Step 3: Insert All LEDs in PCB
Insert all LEDs in PCB in series like circuit diagram.
Step 4: Solder All Wires
Solder all wires of LEDs as solder in picture.
Step 5: Insert All Resistors
Now insert all resistors in pcb as inserted in the picture according to circuit diagram.
Step 6: Solder All Wires of Resistors
Next solder all wires of resistors as solder in picture according to circuit diagram.
Step 7: Next Solder Input Wire
Next solder voltage input wires as solder in picture according to circuit diagram.
Black wire is -ve and brown wire is +ve input DC power supply.
Step 8: Circuit Is Ready
Now our battery level indicator circuit is ready.Now match circuit according to the circuit diagram and
Give input power supply to the circuit.
NOTE:We can give maximum 15V DC power supply to this circuit.
As in picture when I give above 13V DC input then all 5-LEDs is glowing.
Step 9: We Can See All Voltages Level in Pictures
As in all pictures we can see the different voltages Indicate different LEDs are glowing.
As in picture 1 show when I give above 2V then one LED is glowing,
When I give above 5V then two LEDs are glowing,
when I give 10V then 3-LEDs are glowing,
When I give above 13V then All 5-LEDs are glowing.