LM35溫度探測與變色燈

程式碼在這

LM35溫度感測器

紅色(5v)/黑色(接地)/綠色(A0)

程式
int potPin = A0 ;//接收腳A0
void setup()
{
  Serial.begin(9600);
}
void loop()
{
  int val;
  int dat;

  val = analogRead(potPin);//讀取

  dat = (125*val)>>8 ;//轉換成溫度
 // Serial.print("Tep : ") ;
  Serial.println(dat) ;
 // Serial.println("C");
  delay(500);
}

從工具/打開序列埠監視窗，就可以看到溫度的顯示，也可從serial plotter匯出圖形

RGB2

網路上找到的聰明代碼，就不用那麼累了。

使用三色全彩LED製造

模組有3個輸出

1. R，紅色輸出,

2. G，綠色輸出,

3. B，藍色輸出.

 3組信號輸出，可通過單片機程式設計實現R，G，B三種顏色的混合達到全彩的效果，

實驗代碼:

int ledPin = 13; // LED is connected to digital pin 13

int redPin = 11;  // R petal on RGB LED module connected to digital pin 11

int greenPin = 9;  // G petal on RGB LED module connected to digital pin 9

int bluePin = 10;  // B petal on RGB LED module connected to digital pin 10

     

void setup()   

{  

         pinMode(ledPin, OUTPUT); // sets the ledPin to be an output

         pinMode(redPin, OUTPUT); // sets the redPin to be an output

         pinMode(greenPin, OUTPUT); // sets the greenPin to be an output

         pinMode(bluePin, OUTPUT); // sets the bluePin to be an output

}   

     

void loop()  // run over and over again 

{   

          // Basic colors: 

          color(255, 0, 0); // turn the RGB LED red 

          delay(1000); // delay for 1 second 

          color(0,255, 0); // turn the RGB LED green 

          delay(1000); // delay for 1 second 

          color(0, 0, 255); // turn the RGB LED blue 

          delay(1000); // delay for 1 second 

 

          // Example blended colors: 

          color(255,255,0); // turn the RGB LED yellow 

          delay(1000); // delay for 1 second 

          color(255,255,255); // turn the RGB LED white 

          delay(1000); // delay for 1 second 

          color(128,0,255); // turn the RGB LED purple 

          delay(1000); // delay for 1 second 

          color(0,0,0); // turn the RGB LED off 

          delay(1000); // delay for 1 second 

}    

    

void color (unsigned char red, unsigned char green, unsigned char blue)     // the color generating function 

{   

          analogWrite(redPin, 255-red);  

          analogWrite(bluePin, 255-blue);

          analogWrite(greenPin, 255-green);

}