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Please select other codes for this lecture from the links below.
We first learn the difference between Analog and digital. Then we learn what is Potentiometer and how to measure DC voltage with Arduino and the how to find the value of resistor.
/*
* S01-10 Potentiometer
Please watch video instruction here https://youtu.be/wuNrzQ8rpYw
This code is available at http://robojax.com/course1/?vid=lecture10
with over 100 lectures Free On YouTube Watch it here http://robojax.com/L/?id=338
Get the code for the course: http://robojax.com/L/?id=339
* Written by Ahmad Shamshiri for Robojax, robojax.com http:youTube.com/robojaxTV
* Feb 23, 2019
*
*/
const int potPin = A0;// pint name for reading voltage
void setup() {
Serial.begin(9600);// initialize the serial monitor
Serial.println("Reading Analog vlaue");
}
void loop() {
//Robojax Step By Step Arduino Course http://robojax.com/L/?id=338
int potValue = analogRead(potPin);// read the input value
Serial.print("potValue:");
Serial.print(potValue);
Serial.print(" Voltage:");
float voltage = potValue * (5.0 / 1023.0);
Serial.print(voltage);
Serial.println("V");
if(voltage >= 2.8 && voltage <= 4.1)
{
Serial.println("Voltage between 2.8 and 4.1");
}
delay(200);
}
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