DIYfan Simple and small temperature fan controll Circuit Diagram The design of a circuit is very simple and it requires a less number of components. The BD139 transistor operates as a switch here. In addition to this, the temperature-controlled sensor uses the NTC thermistor to control the temperature. So when the thermistor receives the heat its resistance starts decreasing. In this article, we are going to discuss making a temperature-controlled fan using Arduino. With this circuit, we will be able to change the fan speed in our home or any place according to the room temperature and also display the temperature and fan speed changes on a 16x2 LCD display.
Here we are going to demonstrate a simpler version of a temperature-controlled DC fan. You can control any 12 volts 1A DC fan with this circuit according to the temperature changes. To detect the temperature we have used a 10K NTC thermistor. It is a resistance thermometer, its resistance changes inverse proportionally to the temperature. This circuit uses a thermistor as a sensor, the thermistor resistance decrease when a temperature increase. When the temperature increases the thermistor resistance decrease until the voltage set point that adjusts by potentiometer higher than Vgs threshold, MOSFET change to ON state and make a 12 volts fan start and rotating speed faster when a temperature hotter. Temperature Controlled Fan Circuit Diagram. The complete circuit to build the temperature controlled fan using arduino and lm35 project is given below, we have used fritzing software for making most of the circuit diagrams. The fan and the plug were later added using photoshop. The diagram consists of an arduino,a relay, an lm35 sensor, an AC fan, and a plug.
How to Make Temperature Controlled Fan Using Arduino and DHT11 Circuit Diagram
Hello Friends in this video I will show u how to make temperature-controlled Fan. You can use this fan with any circuit like Bench power supply Other VideosH Circuit by rizwanamjadnov It describes how we make a temperature controlled Fan using Arduino, Motor, temperature sensor and a NPN transistor. if temperature is less than 20 it is off and if it is greater than 40 it turns on and its speed only varies between 20 and 40 degrees of temperature In this article, you are going to learn about Arduino temperature controlled fan using DHT22 sensor and relay. We will use the DHT22 sensor to get the temperature value and we will print this temperature value on the LCD. Then we will check if the temperature value is greater than 35 or not, if the temperature will be greater than 35, then the
