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Heater and Temperature Controllers

220V Temperature Controller Circuit

Last updated on 1 June 2026 by Admin-Lavi Leave a Comment

This post talks about 220V Temperature Controller Circuit in easy way, the circuit can turn ON or OFF heater, cooler or other things to keep same temperature. Also, it uses big power like 220V and has sensor like thermometer to check heat or cold and also has small brain chip or timer to decide when […]

Filed Under: 555 Timer Projects, Automation Circuits, Heater and Temperature Controllers, Sensors and Detectors

Simple Freezer Alarm with Buzzer Circuit

Last updated on 30 May 2026 by Admin-Lavi Leave a Comment

Simple Freezer Alarm with Buzzer Circuit is like small guard for our ice food, it uses one sensor, thermistor to check cold level. Furthermore, if freezer become warm too much then buzzer makes loud sound to tell us something is not right, like food is going to melt. Hence, with this indication we can do […]

Filed Under: Alarm Circuits, Automation Circuits, Heater and Temperature Controllers, Mini Projects, Sensors and Detectors

Simple High Temperature Alarm Circuit using IC 555

Last updated on 29 May 2026 by Admin-Lavi Leave a Comment

Simple High Temperature Alarm Circuit using IC 555 uses one special chip called IC 555 which works like a temperature guard; also it keep checking temperature always. Hence, if its too much hot it make alarm sound like buzzer and tell us something is getting too hot, so we can know early and fix before […]

Filed Under: 555 Timer Projects, Alarm Circuits, Heater and Temperature Controllers, Mini Projects, Security and Protection, Sensors and Detectors

Heat Sensor Circuit using Piezo Transducer

Last updated on 28 May 2026 by Admin-Lavi Leave a Comment

This Heat Sensor Circuit using Piezo Transducer is like small detective for heat, which uses special thing called piezo transducer and work like tiny electricity maker. When it get hot or cold it presses itself little bit and make small electric shock and the circuit look at this shock to know how much hot or […]

Filed Under: Heater and Temperature Controllers, Security and Protection, Sensors and Detectors

Simple Temperature Meter Circuit

Last updated on 26 May 2026 by Admin-Lavi 2 Comments

Simple Temperature Meter Circuit is like small detective for heat, as it use special sensor like thermocouple or thermistor to feel heat near it. Here, the sensor can be small part or smart chip like LM35 or LM34 which change heat into electric signal; then circuit take this signal and confirms how much hot or […]

Filed Under: Heater and Temperature Controllers, Meters and Testers, Mini Projects, Sensors and Detectors

Simple Temperature Controlled DC Fan Circuit

Last updated on 25 May 2026 by Admin-Lavi Leave a Comment

Simple Temperature Controlled DC Fan Circuit is like smart fan, which uses special sensor to feel heat around; so when place, it get too hot then circuit makes fan run fast like turning AC high. Therefore, if the place cools again then fan slow down or stop to save power, hence, this circuit uses parts […]

Filed Under: Automation Circuits, Heater and Temperature Controllers, Mini Projects, Sensors and Detectors

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