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94 lines
3.2 KiB
C++
Executable File
94 lines
3.2 KiB
C++
Executable File
/* -----------------------------------------------------------
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* | Arduino Experimentation Kit Example Code |
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* | CIRC-03 .: Spin Motor Spin :. (Transistor and Motor) |
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* -----------------------------------------------------------
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*
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* The Arduinos pins are great for driving LEDs however if you hook
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* up something that requires more power you will quickly break them.
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* To control bigger items we need the help of a transistor.
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* Here we will use a transistor to control a small toy motor
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*
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* http://tinyurl.com/d4wht7
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*
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*/
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int motorPin = 9; // define the pin the motor is connected to
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// (if you use pin 9,10,11 or 3you can also control speed)
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/*
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* setup() - this function runs once when you turn your Arduino on
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* We set the motors pin to be an output (turning the pin high (+5v) or low (ground) (-))
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* rather than an input (checking whether a pin is high or low)
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*/
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void setup()
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{
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pinMode(motorPin, OUTPUT);
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}
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/*
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* loop() - this function will start after setup finishes and then repeat
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* we call a function called motorOnThenOff()
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*/
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void loop() // run over and over again
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{
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motorOnThenOff();
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//motorOnThenOffWithSpeed();
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//motorAcceleration();
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}
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/*
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* motorOnThenOff() - turns motor on then off
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* (notice this code is identical to the code we used for
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* the blinking LED)
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*/
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void motorOnThenOff(){
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int onTime = 2500; //the number of milliseconds for the motor to turn on for
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int offTime = 1000; //the number of milliseconds for the motor to turn off for
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digitalWrite(motorPin, HIGH); // turns the motor On
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delay(onTime); // waits for onTime milliseconds
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digitalWrite(motorPin, LOW); // turns the motor Off
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delay(offTime); // waits for offTime milliseconds
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}
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/*
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* motorOnThenOffWithSpeed() - turns motor on then off but uses speed values as well
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* (notice this code is identical to the code we used for
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* the blinking LED)
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*/
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void motorOnThenOffWithSpeed(){
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int onSpeed = 200; // a number between 0 (stopped) and 255 (full speed)
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int onTime = 2500; //the number of milliseconds for the motor to turn on for
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int offSpeed = 50; // a number between 0 (stopped) and 255 (full speed)
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int offTime = 1000; //the number of milliseconds for the motor to turn off for
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analogWrite(motorPin, onSpeed); // turns the motor On
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delay(onTime); // waits for onTime milliseconds
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analogWrite(motorPin, offSpeed); // turns the motor Off
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delay(offTime); // waits for offTime milliseconds
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}
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/*
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* motorAcceleration() - accelerates the motor to full speed then
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* back down to zero
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*/
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void motorAcceleration(){
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int delayTime = 50; //milliseconds between each speed step
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//Accelerates the motor
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for(int i = 0; i < 256; i++){ //goes through each speed from 0 to 255
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analogWrite(motorPin, i); //sets the new speed
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delay(delayTime); // waits for delayTime milliseconds
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}
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//Decelerates the motor
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for(int i = 255; i >= 0; i--){ //goes through each speed from 255 to 0
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analogWrite(motorPin, i); //sets the new speed
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delay(delayTime); // waits for delayTime milliseconds
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}
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}
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