我正在尝试制作一个 Arduino 程序,它接收来自串行监视器的信号,然后相应地点亮 LED,我将其设置为 RGB。但我有一个问题,所有三个 LED 的灯都像蓝色的一样。这是我的代码:
#define SENSOR 0
#define R_LED 11
#define G_LED 10
#define B_LED 9
#define BUTTON 12
int val = 0;
int times = 0;
int btn = LOW;
int old_btn = LOW;
int state = 0;
int r = 0;
int g = 0;
int b = 0;
byte inByte = 0;
char buffer[5];
void setup() {
Serial.begin(9600);
pinMode(BUTTON, INPUT);
}
void loop() {
val = analogRead(SENSOR);
Serial.println(val);
if (Serial.available() > 0) {
inByte = Serial.read();
if (inByte == '#') {
r = Serial.read() + 1;
r = r * 25;
g = Serial.read() + 1;
g = g * 25;
b = Serial.read() + 1;
b = b * 25;
}
}
btn = digitalRead(BUTTON);
if ((btn == HIGH) && (old_btn == LOW)){
state = 1 - state;
}
old_btn = btn;
if (state == 1){
analogWrite(R_LED, r);
analogWrite(G_LED, g);
analogWrite(B_LED, b);
}else{
analogWrite(R_LED, 0);
analogWrite(G_LED, 0);
analogWrite(B_LED, 0);
}
delay(100);
}
注意:我确信这是一个编码问题,而不是机械问题,供您参考。