Question

到目前为止，我正在使用pySerial和Arduino探索Python。我做了一些项目，其中pySerial从串行端口读取一些内容。

import serial 

arduinoSerialData = serial.Serial('com11',9600) #Create Serial port object called arduinoSerialData


while (1==1):
    if (arduinoSerialData.inWaiting()>0):
        myData = arduinoSerialData.readline()
        print (myData)

int trigPin=13; //Sensor Trig pin connected to Arduino pin 13
int echoPin=11;  //Sensor Echo pin connected to Arduino pin 11
float pingTime;  //time for ping to travel from sensor to target and return
float targetDistance; //Distance to Target in inches
float speedOfSound=776.5; //Speed of sound in miles per hour when temp is 77 degrees.

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:

  digitalWrite(trigPin, LOW); //Set trigger pin low
  delayMicroseconds(2000); //Let signal settle
  digitalWrite(trigPin, HIGH); //Set trigPin high
  delayMicroseconds(15); //Delay in high state
  digitalWrite(trigPin, LOW); //ping has now been sent
  delayMicroseconds(10); //Delay in low state

  pingTime = pulseIn(echoPin, HIGH);  //pingTime is presented in microceconds
  pingTime=pingTime/1000000; //convert pingTime to seconds by dividing by 1000000 (microseconds in a second)
  pingTime=pingTime/3600; //convert pingtime to hourse by dividing by 3600 (seconds in an hour)
  targetDistance= speedOfSound * pingTime;  //This will be in miles, since speed of sound was miles per hour
  targetDistance=targetDistance/2; //Remember ping travels to target and back from target, so you must divide by 2 for actual target distance.
  targetDistance= targetDistance*63360;    //Convert miles to inches by multipling by 63360 (inches per mile)

  Serial.println(targetDistance);

  delay(100); //delay tenth of a  second to slow things down a little.
}

现在，我的代码看起来像这样。如何使用Python中的超声波传感器并将信号发送到Arduino程序？换句话说，我可以让我的Arduino文件从我拥有的Python文件中读取还是只是一个方向？

Answer 1

pySerial允许双向双向通讯。在Arduino方面，您需要在适当的地方调用Serial.read来从Python读取数据流。在Python中，您只需要使用函数serial.write发送数据。如果使用Python 3，则serial.write的输入必须采用byte格式。

pySerial和Arduino通讯

1 个答案: