Assignment: DC Motor: Actuation Assignment 1

Collaborators:

Description

iPurr simulates a cat purring.  When you stroke iPurr it purrs, just like a real cat!  iPurr uses an FSR and weighted DC motor to simulate the purr response of a contented cat.

Photos

Components

• Force Sensing Resistor
• DC Motor
• Arduino
• Paint Cap
• Play Dough
• Tribble Plush Toy

Code

/*
* iPurr
* Takes input from FSR and Out puts to a DC motor
* Jessica Voytek October, 2009
*
* Adapted from:
* 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 fsrPin = 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(fsrPin);    // read the value from the sensor, between 0 - 1024
Serial.println(val);
if (val < 100) {
notify();
}
}

void notify() {
analogWrite(motorPin, 50);
delay(1000);
analogWrite(motorPin, 100);
delay(1000);
analogWrite(motorPin, 50);
delay(1000);
analogWrite(motorPin, 100);
delay(1000);
analogWrite(motorPin, 50);
delay(1000);
analogWrite(motorPin, 100);
delay(1000);
analogWrite(motorPin, 50);
delay(1000);
analogWrite(motorPin, 100);
delay(1000);
analogWrite(motorPin, 0);
}