如何接口

Question

此代码用于控制使用超声波传感器（HC-SR04）的LED。当它上传到arduino时，它会设置红色LED并关闭绿色LED（默认）。此外，如果我们在半径20厘米的传感器前放置一些东西，绿色LED会亮起，红色LED会熄灭。如果我们接受它，它将设置默认值。

#define trigPin 8
#define echoPin 7
#define ledRed 11 //red
#define ledGreen 12 //green
void setup() {
  Serial.begin (9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(ledRed, OUTPUT);
  pinMode(ledGreen, OUTPUT);
}
void loop() {
  long duration, distance;
  digitalWrite(trigPin, LOW);  // Added this line
  delayMicroseconds(2); // Added this line
  digitalWrite(trigPin, HIGH);
  //  delayMicroseconds(1000); - Removed this line
  delayMicroseconds(10); // Added this line
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2) / 29.1; //formula to get distance in cm

  //default led condition
  digitalWrite(ledRed,HIGH); 
  digitalWrite(ledGreen,LOW);

  if (distance <20) {  // This is where the LED On/Off happens
    digitalWrite(ledRed,LOW); // When the Red condition is met, the Green LED should turn off
    digitalWrite(ledGreen,HIGH);
  }
  Serial.print(distance); 
  delay(1000);
}

需要更多帮助，如何在python中控制它。简单地使用pyserial或pyfirmata库？