Home security alarm system circuit diagram

Home security alarm circuit diagram

Have you ever thought about implementing your own home security alarm systems? It’s one of the simplest and interesting circuits for electronic beginners. Our new home security equipment uses a LDR (Light Depended Resistor) to detect security problems. Theft attempt and other security threats can be controlled by using this simple circuit to improve your security systems. This…

Simple fire alarm- thermistor circuit diagram

Simple fire alarm circuit

Here i-St@r comes with a simple and automatic fire alarm and detection system. This fire detection alarm circuit is based on thermistor. What is a thermistor? A thermistor is nothing but a variable resistor whose resistance changes with temperature. Fire detection is simply possible via this low-cost alarm circuit. A simple potential divider arrangement using thermistor is…

UM66 based Water tank over flow musical alarm circuit

UM66 based Water tank over flow musical alarm circuit diagram

This is a simple home automation project based on UM66 melody generator IC. Water tank overflow musical alarm is best suited for science projects in schools. In one of our previous article we had already discussed about another liquid level sensor alarm circuit that produces a beep sound, but this circuit gives a melody sound whenever water…