Potentiometer not rotating the servo

Using Arduino General Electronics
1

hello! I'm on project 5 (mood cue) on my Arduino starter kit. I used the 05 Starter Kit: Mood Cue - YouTube yet after finishing the tutorial the potentiometer isn't moving the servo motor. as soon as I uploaded the code the servo motor just moved to one side and stuck there. does anyone know what's happend?

2

Please post clear photos showing your wiring.

Please post the code and schematic here. I do not have time to watch a video in order to try to help you.

1 Like
3

Please don't make us watch a video - just post your code.

1 Like
4

Arduino.cc says, "... You can find the Arduino code for all these projects within the Arduino IDE, click on File / Examples / 10.StarterKit..."

(I have not verified this... on cellular)

5

Yes, it's there:

/*
  Arduino Starter Kit example
  Project 5 - Servo Mood Indicator

  This sketch is written to accompany Project 5 in the Arduino Starter Kit

  Parts required:
  - servo motor
  - 10 kilohm potentiometer
  - two 100 uF electrolytic capacitors

  created 13 Sep 2012
  by Scott Fitzgerald

  https://store.arduino.cc/genuino-starter-kit

  This example code is part of the public domain.
*/

// include the Servo library
#include <Servo.h>

Servo myServo;  // create a servo object

int const potPin = A0; // analog pin used to connect the potentiometer
int potVal;  // variable to read the value from the analog pin
int angle;   // variable to hold the angle for the servo motor

void setup() {
  myServo.attach(9); // attaches the servo on pin 9 to the servo object
  Serial.begin(9600); // open a serial connection to your computer
}

void loop() {
  potVal = analogRead(potPin); // read the value of the potentiometer
  // print out the value to the Serial Monitor
  Serial.print("potVal: ");
  Serial.print(potVal);

  // scale the numbers from the pot
  angle = map(potVal, 0, 1023, 0, 179);

  // print out the angle for the servo motor
  Serial.print(", angle: ");
  Serial.println(angle);

  // set the servo position
  myServo.write(angle);

  // wait for the servo to get there
  delay(15);
}
6

I will take a SWAG and say it is not wired correctly. I think it is the purple wire going to the orange pot.

1 Like
7

oh found the issue.
I connected the power cable for the potentiometer to the microcontroller and not the breadboard.
so yes I did wire it incorrectly. thank you for making me double check.
thank you for your time

1 Like
8

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.