mixly实现遥控器控制led

#实验目的：按遥控器上的CH键实现LED的开关。开了LED的情况下可以通过CH+和CH-键实现控制LED的光亮变化。LED关闭状态CH+和CH-无效。
硬件：Arduino、红外遥控传感器、遥控器
软件：Mixly IDE

##编程块：

###代码：
#include <IRremote.h>

IRrecv irrecv_9(9);
decode_results results_9;

long ir_item;
volatile int led;
volatile boolean ledstate;

void setup(){
led = 0;
ledstate = 0;
pinMode(6, OUTPUT);
Serial.begin(9600);
irrecv_9.enableIRIn();
}

void loop(){
digitalWrite(6,LOW);
if (irrecv_9.decode(&results_9)) {
ir_item=results_9.value;
String type=“UNKNOWN”;
String typelist[14]={“UNKNOWN”, “NEC”, “SONY”, “RC5”, “RC6”, “DISH”, “SHARP”, “PANASONIC”, “JVC”, “SANYO”, “MITSUBISHI”, “SAMSUNG”, “LG”, “WHYNTER”};
if(results_9.decode_type>=1&&results_9.decode_type<=13){
type=typelist[results_9.decode_type];
}
Serial.print(“IR TYPE:”+type+" ");
digitalWrite(6,(!digitalRead(6)));
if (ir_value == 0xFF629D) {
ledstate = !ledstate;
led = ledstate * 128;

}
if (false) {
  if (ir_value == 0xFFA25D) {
    led = constrain(led - 20, 0, 255);

  }
  if (ir_value == 0xFFE21D) {
    led = constrain(led + 20, 0, 255);

  }

}
Serial.println(ir_item,HEX);
analogWrite(6,led);
irrecv_9.resume();

} else {
}

}