Diff: main.cpp

Revision:

0:8e7ad44f2e4b

Child:

1:2be15f3211a7

diff -r 000000000000 -r 8e7ad44f2e4b main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Apr 27 02:36:51 2020 +0000
@@ -0,0 +1,218 @@
+#include "mbed.h"
+#include "STM32F4_RNG.h"
+#include "DHT.h"
+#include "BMP180.h"
+Serial pc(USBTX, USBRX);
+Serial esp(D8, D2); // tx D8, rx D2
+DigitalOut reset(D4);
+Timer t;
+
+STM32F4_RNG RANDOM1;
+
+int mycount,ended,timeout;
+char buf[1024];
+char snd[255];
+char ssid[32] = "King5";     // enter WiFi router ssid inside the quotes
+char pwd [32] = "88888888"; // enter WiFi router password inside the quotes
+
+char apiKey[32] = "UADVBX13ELBYAO7M";
+
+unsigned long ranval;
+
+#define TEMPVAL 23
+#define HUMIVAL 67
+#define RAYVAL 45
+#define PREVAL 340
+
+int tempVal = 23;
+int humiVal = 67;
+int rayVal = 45;
+int pressVal = 340;
+unsigned long randVal;
+unsigned char shortrandVal= 0;
+float fhumi,ftemp,fray,fpress;
+
+
+void SendCMD(),getreply(),ESPconfig(),ESPsetbaudrate(),HTTPConfig(),PostData();
+AnalogIn analog_value(A0);
+
+
+
+DHT devDht(D7,DHT11);
+BMP180 bmp180(PB_14, PB_13);
+
+
+
+int main()
+{
+    reset=0; //hardware reset for 8266
+    pc.baud(115200);  // set what you want here depending on your terminal program speed
+    pc.printf("\f\n\r-------------ESP8266 Hardware Reset-------------\n\r");
+    wait(0.5);
+    reset=1;
+    timeout=2;
+    getreply();
+    esp.baud(115200);   // change this to the new ESP8266 baudrate if it is changed at any time.
+    //ESPsetbaudrate();   //******************  include this routine to set a different ESP8266 baudrate  ******************
+    //ESPconfig();        //******************  include Config to set the ESP8266 configuration  ***********************
+    
+
+    HTTPConfig();
+    
+ 
+    // continuosly get AP list and IP
+    while(1)
+    {
+       //pc.printf("get data from server\r\n");
+
+     
+       PostData();
+       
+        
+ 
+    }
+
+}
+// Sets new ESP8266 baurate, change the esp.baud(xxxxx) to match your new setting once this has been executed
+void ESPsetbaudrate()
+{
+    strcpy(snd, "AT+CIOBAUD=115200\r\n");   // change the numeric value to the required baudrate
+    SendCMD();
+}
+//  +++++++++++++++++++++++++++++++++ This is for ESP8266 config only, run this once to set up the ESP8266 +++++++++++++++
+void ESPconfig()
+{
+
+}
+void SendCMD()
+{
+    esp.printf("%s", snd);
+}
+void getreply()
+{
+    memset(buf, '\0', sizeof(buf));
+    t.start();
+    ended=0;
+    mycount=0;
+    while(!ended) {
+        if(esp.readable()) {
+            buf[mycount] = esp.getc();
+            mycount++;
+        }
+        if(t.read() > timeout) {
+            ended = 1;
+            t.stop();
+            t.reset();
+        }
+    }
+}
+
+void HTTPConfig()
+{
+    pc.printf("\n---------- Get Version ----------\r\n");
+    strcpy(snd,"AT+GMR\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+    wait(3);  
+    // set CWMODE to 1=Station,2=AP,3=BOTH, default mode 1 (Station)
+    pc.printf("\n---------- Setting Mode ----------\r\n");
+    strcpy(snd, "AT+CWMODE_DEF=1\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+    wait(2);  
+    
+    pc.printf("\n---------- Connecting to AP ----------\r\n");
+    pc.printf("ssid = %s   pwd = %s\r\n",ssid,pwd);
+    strcpy(snd, "AT+CWJAP_DEF=\"");
+    strcat(snd, ssid);
+    strcat(snd, "\",\"");
+    strcat(snd, pwd);
+    strcat(snd, "\"\r\n");
+    SendCMD();
+    timeout=10;
+    getreply();
+    pc.printf(buf);
+    wait(5);
+  
+    pc.printf("\n-----------set to auto connect -----\r\n");
+    strcpy(snd,"AT+CWAUTOCONN=1\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+    wait(2); 
+ 
+     pc.printf("\n-----------set sigle connect -----\r\n");
+    strcpy(snd,"AT+CIPMUX=0\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+    wait(2); 
+ 
+    pc.printf("\n------------connect to server --------\r\n");
+    strcpy(snd,"AT+CIPSTART=\"TCP\",\"api.thingspeak.com\",80\r\n");  
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+    wait(2); 
+  
+ 
+    pc.printf("\n------------set to touchuan --------\r\n");  
+    strcpy(snd,"AT+CIPMODE=1\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+    wait(2); 
+    
+    pc.printf("\n-----------starting send--------\r\n");
+    strcpy(snd,"AT+CIPSEND\r\n");       
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+    wait(2); 
+    
+    
+
+    
+}
+char postStr[256];
+void PostData()
+{
+       int len;
+        
+        
+        if(devDht.readData() == ERROR_NONE)
+        {
+            fhumi = devDht.ReadHumidity();
+            ftemp = devDht.ReadTemperature(CELCIUS);
+            pc.printf("temp:%4.1f\thumi:%4.1f\n",ftemp,fhumi);
+        }      
+        fray = analog_value.read();
+        
+        bmp180.normalize(); 
+        fpress = bmp180.read_pressure();
+        //pressVal = bmp180.read_temperature();
+       
+       wait(2); 
+       //len = sprintf(snd,"GET https://api.thingspeak.com/update?api_key=07A5WIB5QT14WRGV&field1=%d&field2=%d&field3=%d&field4=%d\r\n",tempVal,humiVal,pressVal,rayVal); 
+       len = sprintf(snd,"GET https://api.thingspeak.com/update?api_key=07A5WIB5QT14WRGV&field1=%.1f&field2=%.1f&field3=%.1f&field4=%.2f\r\n",ftemp,fhumi,fpress,fray); 
+       
+       SendCMD(); 
+ 
+       timeout=10;
+       getreply();
+       pc.printf(buf);
+       
+       pc.printf("\r\n%s",snd);
+       wait(28);     
+    
+}
+