Assignment: DC Motor: Actuation Assignment 1

Collaborators:

Description

A new twist on an old favorite -- the thaumatrope!  I used the eraser on a pencil (and after that broke, glued a cardboard sandwich together with wires), as the anchor for the drive shaft of the dc motor to twist the image.  I then used a notecard folded in half and attached to the pencil shaft to rotate the images and produce an "animation". Two animated images are shown below.

Components Used

• DC Motor, wires, battery pack, breadboard, 1 potentiometer, resistors
• Cardboard
• One #2 pencil, broken in half
• pen cap
• paper clips
• markers
• notecards, blank
• adjustable wrench and a bag of rice, as an base to anchor the DC motor

Arduino Code

I used the code for dc motor with controlled by a potentiometer.

/*
* one pot fades one motor
* modified version of AnalogInput
* by DojoDave <http://www.0j0.org>
* http://www.arduino.cc/en/Tutorial/AnalogInput
* Modified again by dave
*/

int potPin = 0;   // select the input pin for the potentiometer
int motorPin = 9; // select the pin for the Motor
int val = 0;      // variable to store the value coming from the sensor
void setup() {
Serial.begin(9600);
}
void loop() {
val = analogRead(potPin);    // read the value from the sensor, between 0 - 1024
Serial.println(val);
analogWrite(motorPin, val/4); // analogWrite can be between 0-255
}