我可以在我的桌面 Linux 电脑上安装 wiring pi 库吗？

Question

钢铁司机的评论解决了这个问题。 sudo apt-get install libwiringpi-dev

libwiringpi-dev 存在一些问题。您不想调用 wiringPiSetup()；您可能会得到

Oops: Unable to determine board revision from /proc/device-tree/system/linux,revision
or from /proc/cpuinfo
 -> No "Hardware" line
 ->  You'd best google the error to find out why.

原因是您使用的不是基于 Arm 的 CPU，并且它查看的文件未按预期格式化。幸运的是我不需要任何这些，我只是想使用简单的串行端口库。

我也遇到了通过 serialPuts() 发送数据的问题，但我想我不需要进行握手。

这是一个读取带有 2 个电位器和一个按钮的 Arduino uno 的小项目，目的是使用电位器在屏幕上或图像中绘制图形...

#include <iostream>
#include <stdio.h>
#include <unistd.h>       //read function
#include <string.h>
#include <wiringSerial.h> //simple serial port library

using namespace std;
//compiled with g++ -Wall -o readSerial   readSerial.cpp -lwiringPi

int main(int argc, char ** argv)
{
    const char *SensorPort = "/dev/ttyACM0"; //Serial Device Address
     
    int levelSensor = serialOpen(SensorPort, 9600);
    //serialPuts(levelSensor, "1"); //Send command to the serial device

    while (1){
        char buffer[100];
        ssize_t length = read(levelSensor, &buffer, sizeof(buffer));
        if (length == -1){
            cerr << "Error reading from serial port" << endl;
            break;
        }
        else if (length == 0){
            cerr << "No more data" << endl;
            break;
        }else{
            buffer[length] = '\0';
            cout << buffer; //Read serial data
        }
    }

    return 0;
}

通过 Arduino 发送的数据是通过以下代码：

    /*EtchaSketch
     * 2 pots, X,Y, increment
     * 
     * add a button to delete this shtuff
     * This program communicates on the serial port, to a separate program that handles the drawing of received coordinates (pot values).  
    */
    
    int potX = A0;    
    int potY = A1;    
    int sensorValX = 0;  
    int sensorValY = 0;  
    int del = 1;       //a button on pin 1 for deleting drawn content 
    int delbutton = 0;
    void setup() {
        Serial.begin(9600);
        pinMode(del, INPUT);
    }

   void loop() {
      // read the value from the pots:
      if(digitalRead(del) == HIGH ){
          delbutton=1;
          }else{
              delbutton=0;
          }   
      sensorValX = analogRead(potX);
      sensorValY = analogRead(potY);
      Serial.print(sensorValX);
      Serial.print(",");
      Serial.print(sensorValY);
      Serial.print(",");
      Serial.println(delbutton);
      delay(1000);
      }

现在它运行良好，可以进入解析/绘图程序

Answer 1