Description
This project is a wireless security alert system based on a wire cut detection mechanism using HT12E/HT12D encoder-decoder ICs and 433MHz RF modules. In normal condition, the wire connection remains intact and the system stays in standby mode.
When the wire is cut or disconnected, the transmitter section instantly sends a wireless signal through the 433MHz RF transmitter using the HT12E encoder. At the receiver side, the 433MHz RF receiver and HT12D decoder activate the alert system. The Red LED and buzzer alarm turn ON to indicate a wire break or intrusion, while the Green LED indicates normal system status.
This project is useful for security systems, anti-theft applications, fence monitoring, and restricted area protection.
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