用RGB灯条来显示植物是否缺水

刚从DFRobot这里拿到了RGB灯条，满喜欢的，本来就想做一个植物饥渴表示器的，这个RGB灯条刚好符合我意。

针脚其实一目了然

RGB用一个灯表现多钟颜色。而且无缝过度颜色


连线方式如上图，但实际我用了一个比较器，接线方式如下图。而主控用的是Arduino mini

[mw_shl_code=applescript,true]//---------Created by gada888-----------

const int analogInPin = A0;

int sensorValue = 0;

int red = 9; int green = 10;

int blue = 11;

//-----------SETUP PART----------

void setup() {

Serial.begin(9600);

pinMode(red, OUTPUT);

pinMode(green, OUTPUT);

pinMode(blue, OUTPUT);

}
//-----------LOOPING PART------------
void loop() {

// Reading sensor value

sensorValue = analogRead(analogInPin);

Serial.println(sensorValue);

//judgement of conditions

if(sensorValue <=300){
//-----mapping value----------

map(sensorValue, 0, 300, 0, 255);

digitalWrite(blue,HIGH);

digitalWrite(green,HIGH);

digitalWrite(red,LOW);

}

if(sensorValue >300){

map(sensorValue, 300, 600, 0, 255);

digitalWrite(blue,HIGH);

digitalWrite(green,LOW);

digitalWrite(red,HIGH);

}

if(sensorValue >=600){
       
map(sensorValue, 600, 700, 0, 255);

digitalWrite(blue,LOW);

digitalWrite(green,HIGH);

digitalWrite(red,HIGH);

}

}[/mw_shl_code]