In the previous post, I use three tactile switches to rotate a servo motor to three angle positions. However, using a potentiometer, we can continuously rotates the angle of servo motor in accordance to the adjustment of the potentiometer.
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| A picture of this example |
With the Arduino Servo.h and analogRead function, this task could be done easily. In this example, a potentiometer connects to pin A0 work as an analog input adjusting the angle of rotation. A servo again, connects to pin A3.
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| Connections Diagram |
The analogRead() function return a 10-bit (1024) value from any reading from a specific analog input pin. Hence, this analog value must convert from 1024 to 180 in degree. This could be done by a simple equation as will be shown in source code.
Click here to download the sketch archive of this example.
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