Arduino - Potentiometer Triggers Servo Motor
In a previous tutorial, We have learned how to rotate servo motor according to the potentiometer's output value. In this tutorial, We are going to learn how to:
- If the potentiometer's analog value is greater than a threshold, rotate servo motor to 90 degree
- If the potentiometer's analog value is lower than a threshold, rotate servo motor back to 0 degree.
- If the potentiometer's output voltage is greater than a threshold, rotate servo motor to 90 degree
- If the potentiometer's output voltage is lower than a threshold, rotate servo motor back to 0 degree.
|1||×||Arduino UNO or Genuino UNO|
|1||×||USB 2.0 cable type A/B|
|1||×||(Optional) 9V Power Adapter for Arduino|
|1||×||(Optional) Screw Terminal Block Shield for Arduino|
About Servo Motor and Potentiometer
If you do not know about servo motor and potentiometer (pinout, how it works, how to program ...), learn about them in the following tutorials:
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Arduino Code - Analog Threshold
- Connect Arduino to PC via USB cable
- Open Arduino IDE, select the right board and port
- Copy the above code and open with Arduino IDE
- Click Upload button on Arduino IDE to upload code to Arduino
- Rotate the potentiometer
- See the change of servo motor
Arduino Code - Voltage Threshold
Potentiometer's analog value is converted to voltage value, and then compared to voltage threshold to triggers servo motor
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