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July 27, 2018 03:05
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BlindsControl.ino - simple Arduino code to toggle position of dual (opposing) linear actuator
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/* | |
BlindsControl - based on "Debounce" example. | |
Each time the input pin goes from LOW to HIGH (e.g. because of a push-button | |
press), the output pin is toggled from LOW to HIGH or HIGH to LOW. There's a | |
minimum delay between toggles to debounce the circuit (i.e. to ignore noise). | |
The circuit: | |
- LED attached from pin 13 to ground | |
- pushbutton attached from pin 2 to +5V | |
- 10 kilohm resistor attached from pin 2 to ground | |
- Note: On most Arduino boards, there is already an LED on the board connected | |
to pin 13, so you don't need any extra components for this example. | |
created 21 Nov 2006 | |
by David A. Mellis | |
modified 30 Aug 2011 | |
by Limor Fried | |
modified 28 Dec 2012 | |
by Mike Walters | |
modified 30 Aug 2016 | |
by Arturo Guadalupi | |
This example code is in the public domain. | |
http://www.arduino.cc/en/Tutorial/Debounce | |
*/ | |
#include <Servo.h> | |
Servo myservo; // create servo object to control a servo | |
// twelve servo objects can be created on most boards | |
// constants won't change. They're used here to set pin numbers: | |
const int buttonPin = 2; // the number of the pushbutton pin | |
const int ledPin = 13; // the number of the LED pin | |
// Variables will change: | |
int ledState = HIGH; // the current state of the output pin | |
int buttonState; // the current reading from the input pin | |
int lastButtonState = LOW; // the previous reading from the input pin | |
// the following variables are unsigned longs because the time, measured in | |
// milliseconds, will quickly become a bigger number than can be stored in an int. | |
unsigned long lastDebounceTime = 0; // the last time the output pin was toggled | |
unsigned long debounceDelay = 50; // the debounce time; increase if the output flickers | |
void setup() { | |
pinMode(buttonPin, INPUT); | |
pinMode(ledPin, OUTPUT); | |
myservo.attach(9); // attaches the servo on pin 9 to the servo object | |
// set initial LED state | |
digitalWrite(ledPin, ledState); | |
} | |
void loop() { | |
// read the state of the switch into a local variable: | |
int reading = digitalRead(buttonPin); | |
// check to see if you just pressed the button | |
// (i.e. the input went from LOW to HIGH), and you've waited long enough | |
// since the last press to ignore any noise: | |
// If the switch changed, due to noise or pressing: | |
if (reading != lastButtonState) { | |
// reset the debouncing timer | |
lastDebounceTime = millis(); | |
} | |
if ((millis() - lastDebounceTime) > debounceDelay) { | |
// whatever the reading is at, it's been there for longer than the debounce | |
// delay, so take it as the actual current state: | |
// if the button state has changed: | |
if (reading != buttonState) { | |
buttonState = reading; | |
// only toggle the LED if the new button state is HIGH | |
if (buttonState == HIGH) { | |
ledState = !ledState; | |
myservo.attach(9); // Drive servo. | |
myservo.write(ledState ? 180 : 0); | |
delay(1000); // Allow servo to reach its destination. | |
myservo.detach(); // Stop driving servo. | |
} | |
} | |
} | |
// set the LED: | |
digitalWrite(ledPin, ledState); | |
// save the reading. Next time through the loop, it'll be the lastButtonState: | |
lastButtonState = reading; | |
} |
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