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• Battery: A battery gives power to make things like toys, lights, or other

parts work. It has two ends—one positive (+) and
one negative (-) and they need to be connected the

right way for things to work.

• USB Cable: A USB cable is a wire that connects

different things together, like charging your
tablet or connecting a toy to your computer. It

helps electricity or information travel from one thing to another.

• Battery OTG Socket: This is a special
part that connects the battery to other

pieces so they can get power, like plugging
something into the wall to charge it.

Create a Model of Water Level Indicator Using Smart Circuit Kit

To create a model of water level indicator using smart circuit kit, follow

the given steps:

Step 1 Take out all the components from the smart circuit kit:

• LED • Switch • Battery
• USB Cable • Battery OTG Socket

Step 2 Connect the switch to one side of the LED.

Step 3 Attach the positive terminal of the battery to the free end of the

switch, leaving the negative terminal of the battery free.

Step 4 Take a connecting wire and attach it to the negative terminal of
the LED. Leave the other end of the wire free.

Step 5 Place the two free ends of the wires into the water tank and
observe what happens.

Output

When the switch is turned ON, the LED will light up. When you turn the
switch OFF, the LED will stop glowing. This shows how the switch controls
the light by letting power flow from the battery to the LED.

40 RoboGenius (V1.0)-II