This project will raise an alarm if someone tries to trespass into your area.
Required bricks :
1. Power brick with battery and battery connector
2. Obstacle brick
3. Latch brick
4. Button brick
5. Pulse brick
6. Buzzer brick and few connecting wires
Required materials :
2. Chart paper
3. Sketch pen
5 .Double sided tape
HOW TO MAKE IT?
Step 1 : Draw a house on a chart paper and stick it on a thermocol sheet.
Step 2: Build the following circuit using Etch Bricks,
Step 3: Place the Obstacle brick such a way the it detects the people entering the house .
If some one enters the house , the Obstacle brick detects it and ON s the Latch brick .The alarm turns ON.
To turn off the alarm, press the Button brick which is connected to the OFF of the Latch brick.