Arduino
/*************************************************
* As explained above, the amount to times you press the button should change the the rotation speed of fan.
* Pressing it once will cause it to rotate slowly,
* while pressing it three times will cause it to rotate quickly, and pressing it four times will cause it stop.
************************************************/
// constants won't change.They're used here to set pin numbers:
const int buttonPin = 2;
const int ledPin = 13;
const int motorIn1 = 9;
const int motorIn2 = 10;
int stat = 0;
#define rank1 150
#define rank2 200
#define rank3 250
//variables will change:
int buttonState; // the current reading from the input pin
int lastButtonState = LOW; // the previous reading from the input pin
// the following variables are long's because the time, measured in miliseconds,
// will quickly become a bigger number than can be stored in int.
long lastDebounceTime = 0; // the last time the output pin was toggled
long debounceDelay = 50; // the debounce time; increase if the output flickers
/*********************************************/
void setup()
{
//set the led, motors as OUTPUT, button as INPUT
pinMode(buttonPin, INPUT);
pinMode(ledPin, OUTPUT);
pinMode(motorIn1, OUTPUT);
pinMode(motorIn2, OUTPUT);
Serial.begin(9600);
}
void loop()
{
// read the state of the switch into a local variable:
int reading = digitalRead(buttonPin);
if (reading != lastButtonState) // If the button state is different from last time
{
lastDebounceTime = millis(); // reset the debouncing timer
}
if ((millis() - lastDebounceTime) > debounceDelay){
if (reading != buttonState)
{
buttonState = reading; // Store the state of button in buttonState
// only toggle the LED if the new button state is HIGH
if (buttonState == HIGH)
{
digitalWrite(ledPin, HIGH); //turn on the LED
stat ++;
if (stat >= 4)
{
stat = 0;
}
}
else
digitalWrite(ledPin ,LOW);
}
}
switch(stat)
{
case 1:
clockwise(rank1);
break;
case 2:
clockwise(rank2);
break;
case 3:
clockwise(rank3);
break;
default:
clockwise(0);
}
// save the reading. Next time through the loop,
// it'll be the lastButtonState:
lastButtonState = reading;
}
/**************************************************/
void clockwise(int Speed)
{
analogWrite(motorIn1, 0);
analogWrite(motorIn2, Speed);
}
/*********************************************/
改造成·智能风扇
貌似有点小bug, 但主题功能实现
/*************************************************
* As explained above, the amount to times you press the button should change the the rotation speed of fan.
* Pressing it once will cause it to rotate slowly,
* while pressing it three times will cause it to rotate quickly, and pressing it four times will cause it stop.
************************************************/
// constants won't change.They're used here to set pin numbers:
#include <OneWire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal_I2C.h>
#include <Wire.h>
LiquidCrystal_I2C lcd(0x27, 16, 2); //set the LCD address to 0x27 for a 16 chars and 2 line display
#define ONE_WIRE_BUS 7 //ds18b20 module attach to pin7
//Setup a oneWire instance to communicate with any OneWire devices (not just Maxi/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);
//Pass our oneWire reference to Dallas Temperature.
DallasTemperature sensors(&oneWire);
const int buttonPin = 2;
const int ledPin = 13;
const int motorIn1 = 9;
const int motorIn2 = 10;
int stat = 0;
int tmp = 0;
int temp = 0;
#define rank1 150
#define rank2 200
#define rank3 250
//variables will change:
int buttonState; // the current reading from the input pin
int lastButtonState = LOW; // the previous reading from the input pin
// the following variables are long's because the time, measured in miliseconds,
// will quickly become a bigger number than can be stored in int.
long lastDebounceTime = 0; // the last time the output pin was toggled
long debounceDelay = 50; // the debounce time; increase if the output flickers
/*********************************************/
void setup()
{
sensors.begin(); //initialize the bus
lcd.init(); //initialize the lcd
lcd.backlight(); //turn on the backlight
//set the led, motors as OUTPUT, button as INPUT
pinMode(buttonPin, INPUT);
pinMode(ledPin, OUTPUT);
pinMode(motorIn1, OUTPUT);
pinMode(motorIn2, OUTPUT);
Serial.begin(9600);
}
void loop()
{
//call sensors.requestTemperatures() to issue a global temperature
//request to all devices on the bus
//Serial.print("Requesting temperatures...");
sensors.requestTemperatures(); //send the command to get temperatures
lcd.setCursor(0, 0);
lcd.print("TemC: ");
lcd.print(sensors.getTempCByIndex(0)); //print the temperature on lcd1602
lcd.print(char(223)); //print the unit "C"
lcd.print("C");
temp = sensors.getTempCByIndex(0);
if (temp < 25) stat = 0;
if (temp < 27 && temp >= 25) stat = 1;
if (temp < 29 && temp >= 27) stat = 2;
if (temp > 29) stat = 3;
// read the state of the switch into a local variable:
int reading = digitalRead(buttonPin);
if (reading != lastButtonState) // If the button state is different from last time
{
lastDebounceTime = millis(); // reset the debouncing timer
}
if ((millis() - lastDebounceTime) > debounceDelay){
if (reading != buttonState)
{
buttonState = reading; // Store the state of button in buttonState
// only toggle the LED if the new button state is HIGH
if (buttonState == HIGH)
{
digitalWrite(ledPin, HIGH); //turn on the LED
tmp ++;
if (tmp >= 2)
{
tmp = 0;
}
}
else
digitalWrite(ledPin ,LOW);
}
}
switch(stat)
{
case 1:
clockwise(rank1);
break;
case 2:
clockwise(rank2);
break;
case 3:
clockwise(rank3);
break;
default:
clockwise(0);
}
// save the reading. Next time through the loop,
// it'll be the lastButtonState:
lastButtonState = reading;
}
/******************************************************/
void clockwise(int Speed)
{
analogWrite(motorIn1, 0);
analogWrite(motorIn2, Speed);
}
/****************************************************/
网友评论