DIY Heat Sensor Alarm Circuit Using Zener Diode Simple Electronics Project #shorts

DIY Heat Sensor Alarm Circuit Using Zener Diode Simple Electronics Project #shorts #energytricks
Today I have created a Heat Sensor Alarm System using a 9V battery, electric switch, BC547 transistor, Zener diode, buzzer, 100Ω resistor, and an LED. The main sensor in this project is the Zener diode, which reacts to heat. When the Zener diode is heated (for example, with a matchstick or lighter nearby), it changes its electrical behavior, triggering the BC547 transistor to turn ON.

Once activated, the circuit allows current to flow to both the buzzer and LED, turning them ON and simulating a heat-detection alarm. This project is a simple demonstration of how certain components, like Zener diodes, can be used to detect temperature changes and trigger alarms. It’s useful for learning basic sensor circuits and understanding how heat-sensitive electronics can be made using low-cost parts.

This kind of circuit can help beginners explore the fundamentals of analog sensing, transistor switching, and DIY alert systems.

Видео DIY Heat Sensor Alarm Circuit Using Zener Diode Simple Electronics Project #shorts канала Energy Tricks