View source for LinkNode Rotary Potentiometer Module

== Introduction ==

The Rotary Potentiometer Module produces analog output between 0 and Vcc (3.3V DC with LinkNode D1 ) on it’s “OUT” connector. The angular range is 300 degrees with a linear change in value. The resistance value is 10kΩ.

[[File:Rotary D1.jpg|640px]]

[[File:Rotary D1 2.jpg|640px]]

== Wiring & Running ==

The module is connected to the base shield J9:

Sensor Signal --> LinkNode D1 ADC0 

This example uses ADC channel 0 to get the value of the rotary potentiometer output voltage.

Open the Arduino IDE serial monitor ( BAUD 9600 ) , you can see the module output voltage.

[[File:Rotary D1 3.png|640px]]

[[File:Rotary D1 4.png|640px]]

== Simple Code ==

 void setup() {
   // put your setup code here, to run once:
    Serial.begin(9600);
 }
 
 void loop() {
   // put your main code here, to run repeatedly:
    int value = analogRead(A0);
    float voltage = (value) * (3.3/1024.0);
    Serial.print("Output Voltage (Unit:V) : ");
    Serial.println(voltage,2);
    delay(300);
 }