ARDUINO使用GPRS发送GPS数据到OneNet测试

功能：

测试把固定的GPS数据发送到OneNet平台

调试途中碰到的问题

ARDUINO不支持sprintf的double打印，只能转换为char字符串然后再%s打印

#include <TimerOne.h>

#define DebugSerial Serial
#define GprsSerail Serial3

#define Success 1U
#define Failure 0U

int L = 13; //LED指示灯引脚

unsigned long  Time_Cont = 0;       //定时器计数器

const unsigned int gprsRxBufferLength = 600;
char gprsRxBuffer[gprsRxBufferLength];
unsigned int gprsBufferCount = 0;
char OneNetServer[] = "api.heclouds.com";       //不需要修改

char device_id[] = "3225187";    //修改为自己的设备ID
char API_KEY[] = "R9xO5NZm6oVI4YBHvCPKEqtwYtMA";    //修改为自己的API_KEY
char sensor_gps[] = "location";

char lon_str[] = "11224.4992";
char lat_str[] = "3438.1633";

void setup() {
    pinMode(L, OUTPUT);
    digitalWrite(L, LOW);
    DebugSerial.begin(9600);
    GprsSerail.begin(9600);

    Timer1.initialize(1000);
    Timer1.attachInterrupt(Timer1_handler);

    initGprs();

    DebugSerial.println("\r\nsetup end!");
}

void loop() {
      postGpsDataToOneNet(API_KEY,device_id,sensor_gps,lon_str,lat_str);
      delay(5000);
}

double longitudeToOnenetFormat(char *lon_str_temp)
{
  double lon_temp = 0;
  long lon_Onenet = 0;
  int dd_int = 0;
  long mm_int = 0;
  double lon_Onenet_double = 0;

  lon_temp = atof(lon_str_temp);
  lon_Onenet =lon_temp*100000;  //转换为整数

  dd_int = lon_Onenet/10000000; //取出dd

  mm_int = lon_Onenet%10000000;  //取出MM部分

  lon_Onenet_double = dd_int + (double)mm_int/60/100000;//换算为Onenet格式

  return lon_Onenet_double;
}

double latitudeToOnenetFormat(char *lat_str_temp)
{
  double lat_temp = 0;
  long lat_Onenet = 0;
  int dd_int = 0;
  long mm_int = 0;

  double lat_Onenet_double = 0;

  lat_temp = atof(lat_str_temp);
  lat_Onenet =lat_temp*100000;  //转换为整数

  dd_int = lat_Onenet/10000000; //取出dd

  mm_int = lat_Onenet%10000000;  //取出MM部分

  lat_Onenet_double = dd_int + (double)mm_int/60/100000;//换算为Onenet格式

  return lat_Onenet_double;
}

void postGpsDataToOneNet(char* API_VALUE_temp,char* device_id_temp,char* sensor_id_temp,char* lon_temp,char* lat_temp)
{
    char send_buf[400]= {0};
    char text[100] = {0};
    char tmp[25] = {0};

    char lon_str_end[15] = {0};
    char lat_str_end[15] = {0};

    dtostrf(longitudeToOnenetFormat(lon_temp),3,6, lon_str_end);  //转换成字符串输出
    dtostrf(latitudeToOnenetFormat(lat_temp),2,6, lat_str_end);  //转换成字符串输出

    //连接服务器
    memset(send_buf, 0, 400);    //清空
    strcpy(send_buf, "AT+CIPSTART=\"TCP\",\"");
    strcat(send_buf, OneNetServer);
    strcat(send_buf, "\",80\r\n");
    if (sendCommand(send_buf, "CONNECT", 10000, 5) == Success);
    else GPRS_ERROR(7);

    //发送数据
    if (sendCommand("AT+CIPSEND\r\n", ">", 3000, 1) == Success);
    else GPRS_ERROR(8);

    memset(send_buf, 0, 400);    //清空

    /*准备JSON串*/
    //ARDUINO平台不支持sprintf的double的打印，只能转换到字符串然后打印
    sprintf(text,"{\"datastreams\":[{\"id\":\"%s\",\"datapoints\":[{\"value\":{\"lon\":%s,\"lat\":%s}}]}]}"
      ,sensor_id_temp,lon_str_end,lat_str_end);

    /*准备HTTP报头*/
    send_buf[0] = 0;
    strcat(send_buf,"POST /devices/");
    strcat(send_buf,device_id_temp);
    strcat(send_buf,"/datapoints HTTP/1.1\r\n");//注意后面必须加上\r\n
    strcat(send_buf,"api-key:");
    strcat(send_buf,API_VALUE_temp);
    strcat(send_buf,"\r\n");
    strcat(send_buf,"Host:");
    strcat(send_buf,OneNetServer);
    strcat(send_buf,"\r\n");
    sprintf(tmp,"Content-Length:%d\r\n\r\n", strlen(text));//计算JSON串长度
    strcat(send_buf,tmp);
    strcat(send_buf,text);

    if (sendCommand(send_buf, send_buf, 3000, 1) == Success);
    else GPRS_ERROR(9);

    char sendCom[2] = {0x1A};
    if (sendCommand(sendCom, "\"succ\"}", 3000, 1) == Success);
    else GPRS_ERROR(10);

    if (sendCommand("AT+CIPCLOSE\r\n", "CLOSE OK", 3000, 1) == Success);
    else GPRS_ERROR(11);

    if (sendCommand("AT+CIPSHUT\r\n", "SHUT OK", 3000, 1) == Success);
    else GPRS_ERROR(11);
}

void initGprs()
{
    if (sendCommand("AT\r\n", "OK", 3000, 10) == Success);
    else GPRS_ERROR(1);

//      如果输入 AT+CREG? <CR>则返回+CREG: <mode>, <stat> [ ,<lac>,<ci> ]
// 注: <mode>的值共有三个选项,分别是 0 or 1 or 2,  其中0 代表关闭网络注册结果
//            码, 1 代表当网络注册状态改变时激活网络注册结果码, 2 代表激活网
// 络注册结果码同时显示区域和小区信息.
//    <stat>的返回值共有三个,分别是 0, 1, 2,3,4,5 ,  其中 0 代表没有注册网络同时
//   模块没有找到运营商, 1代注册到了本地网络, 2 代表找到运营商但没
// 有注册网络, 3 代表注册被拒绝, 4 代表未知的数据, 5代表注册在漫游
// 状态.
//    <lac>表示所属网络区域代码,十六进制格式显示,如: “ 279C”
//    <ci>表示所属网络的小区 ID,十六进制格式显示,如: “ 0EB2”  Tech-Link T&E
    if (sendCommand("AT+CREG?\r\n", "+CREG: 0,1", 3000, 10) == Success);
    else GPRS_ERROR(2);

    if (sendCommand("AT+CGCLASS=\"B\"\r\n", "OK", 3000, 2) == Success);
    else GPRS_ERROR(3);

    if (sendCommand("AT+CGDCONT=1,\"IP\",\"CMNET\"\r\n", "OK", 3000, 2) == Success);
    else GPRS_ERROR(4);

    if (sendCommand("AT+CGATT=1\r\n", "OK", 3000, 2) == Success);
    else GPRS_ERROR(5);

    if (sendCommand("AT+CLPORT=\"TCP\",\"2000\"\r\n", "OK", 3000, 2) == Success);
    else GPRS_ERROR(6);
}

void(* resetFunc) (void) = 0; //制造重启命令 

void GPRS_ERROR(int num)
{
    DebugSerial.print("ERROR");
    DebugSerial.println(num);
    while (1)
    {
        digitalWrite(L, HIGH);
        delay(300);
        digitalWrite(L, LOW);
        delay(300);

        if (sendCommand("AT\r\n", "OK", 100, 10) == Success)
        {
            DebugSerial.print("\r\nRESET!!!!!!\r\n");
            resetFunc();
        }
    }
}

unsigned int sendCommand(char *Command, char *Response, unsigned long Timeout, unsigned char Retry)
{
    clrGprsRxBuffer();
    for (unsigned char n = 0; n < Retry; n++)
    {
        DebugSerial.print("\r\n---------send AT Command:---------\r\n");
        DebugSerial.write(Command);

        GprsSerail.write(Command);

        Time_Cont = 0;
        while (Time_Cont < Timeout)
        {
            gprsReadBuffer();
            if(strstr(gprsRxBuffer, Response) != NULL)
            {
                DebugSerial.print("\r\n==========receive AT Command:==========\r\n");
                DebugSerial.print(gprsRxBuffer); //输出接收到的信息
                clrGprsRxBuffer();
                return Success;
            }
        }
        Time_Cont = 0;
    }
    DebugSerial.print("\r\n==========receive AT Command:==========\r\n");
    DebugSerial.print(gprsRxBuffer);//输出接收到的信息
    clrGprsRxBuffer();
    return Failure;
}

void Timer1_handler(void)
{
    Time_Cont++;
}

void gprsReadBuffer() {
    while (GprsSerail.available())
    {
        gprsRxBuffer[gprsBufferCount++] = GprsSerail.read();
        if (gprsBufferCount == gprsRxBufferLength)clrGprsRxBuffer();
    }
}

void clrGprsRxBuffer(void)
{
    memset(gprsRxBuffer, 0, gprsRxBufferLength);      //清空
    gprsBufferCount = 0;
}