House Alarm LDR without Transistor (ANY06I)

Security & Alarm System – Intrusion Detection

Build a simple security alarm that detects a possible break-in withoout a transistor

LDR light sensor detects a change in light.

Buzzer sounds the alarm.

Flashing LED gives a visual warning.

The LDR light sensor must be visible outside the model house.

How it works: When light shines on the LDR light sensor, the buzzer sounds and the LED flashes.

Please note: The price quoted is for the components shown in the example. Any changes or additional components will be charged accordingly.