Temperature sensor circuit diagram.
Water temperature sensor circuit diagram.
Interfacing turbidity sensor with arduino circuit diagram.
Compatible with arduino raspberry pi avr pic etc.
The schematic shown here is a project of a simple temperature sensor circuit or we can also say it a heat sensor circuit which will activate an led when receive heat.
When temperature increases its resistance decreases and vice versa.
The circuit is easy to make and using only few components.
The calibration of the temperature indicator at 100 c is done by comparing it with a precision termometer.
At normal temperature the resistance of the thermistor th1 is approximately 10 kilo ohms which.
The two bc547b transistors are connected as a darlington pair to increase.
Here is a simple water level alarm circuit using 555 timer that will produce an audible alarm when the water level reaches a preset level the circuit can read more in industrial circuits.
The complete schematic to connect the turbidity sensor to arduino is shown below the circuit was designed using easyeda.
In this fire alarm circuit a thermistor works as the heat sensor.
The total current consumption is 10ma.