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Working :

Temperature sensor LM35 provides the analog voltage output with 10mV/0°C scale factor. This output is connected to pin7(analog 0 pin) of the microcontroller. Hence the servo position depends on the output voltage of LM35. The mechanics of the project is based on the servo motor. These motors are generally used for angular movement. We are using the servo motor for 0° - 180° movement. Servo motor's angular  position are controlled by PWM(Pulse Width Modulation) technique.

Calibration :

Start the project by adjusting the servo to 0° angular position matching with the 0°C temperature scale without power supply. This calibration process is required for the first time only. That's it, now play the project.

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SG Templetes by Sameer Gupta