SENSORS

SENSORS

1. TEMPERATURE SENSOR

   • Gives temperature measurement as an electrical signal
     • Thermistor
     • LM35
     • Thermocouple

2. SOIL MOISTURE SENSOR

   • To measure the amount of moisture present in the soil for irrigation systems.

3. IR Sensor

   • Uses infrared rays to detect any object its line of sensing

4. PROXIMITY SENSOR

   • Sends electromagnetic waves and analyses the reflected waves for object detection

5. ULTRASONIC SENSOR

   • Sends Ultrasonic waves and analyses the reflected waves for object detection.

6. TOUCH SENSOR

   • This tactile sensor works like a switch. When contact is made, the circuit closes and current flows through it, thereby indicating an object is present

7. LEVEL SENSOR

   • Continuous level sensor
     • Detects the level and gives it as an analog value
   • Point Level Sensor
     • Detects the level and gives it as a boolean value, example 0 if it is below the preset value, 1 if it is above the preset value

8. COLOUR SENSOR

   • This sensor has 4 filters, namely, red, green, blue and clear. It also has 4 LEDs which emit white light, depending on the reflected wavelengths, the colours are detected.
   • TCS3200

9. RAIN SENSOR

   • Has Aluminium plates, which conduct only when water falls on it. As soon as the Aluminium conducts, the circuit closes, and the buzzer rings.