This Simple Over-Temperature Warning Indicator Circuit uses an LED to indicate excessive temperature, as it uses only a few easily available components, making the circuit simple, low cost, and easy to build. The circuit turns ON an LED when temperature rises above a set level like 45°C – 55°C and therefore, it is useful for […]
Heater and Temperature Controllers
DIY Arduino Based Weather Station Circuit
This DIY Arduino Based Weather Station Circuit is very easy project, as it uses Arduino Uno, DHT11 sensor, 16×2 LCD and one potentiometer. Here, the LCD show temperature and humidity on screen and potentiometer controls LCD contrast and brightness; The wiring is simple and code are very easy and anyone can build this circuit at […]
Simple Thermistor Based Fire Alarm Circuit
This Simple Thermistor Based Fire Alarm Circuit is very small, simple and smart, as it uses a thermistor to sense heat fast; when temperature goes high the circuit wakes up and makes loud sound. Here, this circuit uses no microcontroller or complex parts, but it uses only a few components and provides a working fire […]
Temperature Controlled LED Circuit
This small Temperature Controlled LED Circuit can feel the heat! When we place near warm thing, it sense temperature and LED glow and it work very simple using one diode and one transistor only. No microcontroller, no sensor IC, just few parts and also we can build it easy at home and see how heat […]
Simple Digital Thermometer Circuit with IC LM35
This is a small and Simple Digital Thermometer Circuit with IC LM35, it uses LM35 sensor IC and also the circuit show temperature in voltmeter. Moreover, it is cheap and very easy to make and is also good for students and DIY beginners. Circuit Working: Parts List: Components Values Quantity Resistors 10k 1 Preset 2k […]
Buzzer Alert at 0°C Indicator Circuit
In winter season, water and surrounding air can go below zero degree and at that time it is useful to have a small alarm which tells us when temperature goes near freezing point. This Buzzer Alert at 0°C Indicator Circuit uses thermistor sensor, one op-amp IC and a piezo buzzer to make sound alarm when […]