Morning Alarm

The morning alarm wakes you up in the morning automatically.

Required bricks: 

1. Power brick with battery and battery connector

2. Shadow brick

3. Not brick

4. Pulse brick

5. Buzzer brick and few connecting wires.

Required Materials :

1. Double sided tape

2. Scissor

3. Cardboard box

 

HOW TO MAKE IT?

 

Step 1: Connect Etch bricks as shown below,

morning alarm

Step 2: Take a cardboard box, put the shadow brick on the top of the box and rest of the circuit inside the box as shown in the picture.

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Step 3: Switch on the power brick and place it near your window. You can adjust the light sensitivity by tuning the  shadow brick.

Observe that the project  raises an alarm when light falls on the Shadow brick  and stops when it is dark.