Diff: main.cpp

Revision:

33:644859c4fe1c

Parent:

32:c22cbcfb4635

--- a/main.cpp	Fri Aug 19 04:35:30 2022 +0000
+++ b/main.cpp	Sat Aug 27 01:47:21 2022 +0000
@@ -1,97 +1,205 @@
 #include "mbed.h"
+#include "mbed_events.h"
 #include "HEPTA_CDH.h"
 #include "HEPTA_EPS.h"
 #include "HEPTA_SENSOR.h"
 #include "HEPTA_COM.h"
+#include"Air_Quality.h"
+
+
 HEPTA_CDH cdh(p5, p6, p7, p8, "sd");
 HEPTA_EPS eps(p16,p26);
 HEPTA_SENSOR sensor(p17,
-                  p28,p27,0x19,0x69,0x13,
-                  p13, p14,p25,p24);
+                    p28,p27,0x19,0x69,0x13,
+                    p13, p14,p25,p24);
 HEPTA_COM com(p9,p10);
 DigitalOut condition(LED1);
+AirQuality airqualitysensor;
+PinName analogPin = p19;
+AnalogIn soil(p18);
+int s = 0;
+int sprinkler_switch = 0; //0 = OFF, 1 = ON
+Timer sattime;
+Timer buzzertime;
+Ticker sound;
+
+#define mC 261.626
+#define mD 293.665
+#define mE 329.628
+#define mF 349.228
+#define mG 391.995
+#define mA 440.000
+#define mB 493.883
+float mm[]= {mC*4,mD*4,mE*4,mF*4,mG*4,mA*4,mB*4,mC*8};  //timbre
+// Guess: Use p22 for buzzer. If not working, just change
+DigitalOut sp1(p22);    //DigitalOut for buzzer
+//Thread thread;
+
 Serial sat(USBTX,USBRX,9600);
-Timer sattime;
 int rcmd = 0,cmdflag = 0; //command variable
 
-int main() {
+void tick(void)
+{
+    sp1.write(s);
+    s=!s;
+}
+
+// Interrupt Handler
+void AirQualityInterrupt()
+{
+    AnalogIn sensor(analogPin);
+    airqualitysensor.last_vol = airqualitysensor.first_vol;
+    airqualitysensor.first_vol = sensor.read()*1000;
+//    com.printf("%d\r\n",airqualitysensor.first_vol);
+    airqualitysensor.timer_index = 1;
+}
+
+//Thread function responsible for turning on the buzzer
+void buzzer_asnyc()
+{
+    Ticker sound;
+    buzzertime.start();
+    //sound on
+    sprinkler_switch = 1;
+    for(int i=0; i < sizeof(mm)/sizeof(mm[0]); i++) {
+        sound.attach(&tick,1.0/mm[i]/2.0);
+        wait(0.5f);
+    }
+    sound.detach();
+    sprinkler_switch = 0;
+}
+
+
+int main()
+{
     sat.printf("From Sat : Nominal Operation\r\n");
     com.printf("From Sat : Nominal Operation\r\n");
     com.baud(9600);
     int flag = 0; //condition flag
-    float batvol, temp; //voltage, temperature 
+    float batvol, temp; //voltage, temperature
+    float moisture = 0.0; //moisture
+    long air_quality = -1; //air quality
+
     int rcmd=0,cmdflag=0;  //command variable
     sattime.start();
     eps.turn_on_regulator();//turn on 3.3V conveter
-    for(int i = 0; i < 100; i++) {
+
+    char target_dir[] = "/sd/mydir";
+    char basename[] = "sdtest.csv";
+    char target_path[] ="/sd/mydir/sdtest.csv";
+
+//    strcat(target_path,target_dir);
+//    strcat(target_path,"/");
+//    strcat(target_path,basename);
+    // check saving to SD card
+    mkdir(target_dir, 0777);
+    //TODO: Overwrite basename if it exists.
+    sat.printf("Full Path %s\r\n",target_path);
+    // remove the original file
+//    remove(target_path);
+    FILE *fp = fopen(target_path, "w");
+    if(fp == NULL) {
+        error("Could not open file for write\r\n");
+    }
+    fclose(fp);
+
+    //TODO: Fix the wait timer inside
+    airqualitysensor.init(analogPin, AirQualityInterrupt); //Turn on Air Quality
+
+    //Assume that the satellite is accessible.
+    //TODO: Establish first that satellite is available.
+    sat.printf("Sending Satellite Data...\r\n");
+
+    int packet_num = 0;
+    while(1) {
         com.xbee_receive(&rcmd,&cmdflag);//interupting by ground station command
-        
+
         //satellite condition led
         condition = !condition;
-        
+
         //senssing HK data(dummy data)
         eps.vol(&batvol);
         sensor.temp_sense(&temp);
-        
+
         //Transmitting HK data to Ground Station(GS)
         com.printf("HEPTASAT::Condition = %d, Time = %f [s], batVol = %.2f [V],Temp = %.2f [C]\r\n",flag,sattime.read(),batvol,temp);
         wait_ms(1000);
-                
-        //Power Saving Mode 
-        if((batvol <= 3.5)  | (temp > 35.0)){
-            eps.shut_down_regulator();
-            com.printf("Power saving mode ON\r\n"); 
-            flag = 1;
-        } else if((flag == 1) & (batvol > 3.7) & (temp <= 25.0)) {
-            eps.turn_on_regulator();
-            com.printf("Power saving mode OFF\r\n");
-            flag = 0;
-        }
+        
+        //Collect Data from GST Sensors
+        moisture = soil.read() * 1000.0;
+        air_quality=airqualitysensor.slope();
+        sprinkler_switch = 0; //OFF
+        FILE *fp = fopen(target_path, "a");
+        sat.printf("Time = %.0f, Moisture = %0.4f,Air Quality = %0.2ld, Sprinkler = %d\r\n",sattime.read(),moisture,air_quality,sprinkler_switch);
+        fprintf(fp,"Time = %.0f, Moisture = %0.4f,Air Quality = %0.2ld, Sprinkler = %d\r\n",sattime.read(),moisture,air_quality,sprinkler_switch);
+        fclose(fp);
+        packet_num++;
+        //For every 10 packets, delete the file.
+       // if (packet_num % 100 == 0) {
+//            remove(target_path);
+//        }
         //Contents of command
         if (cmdflag == 1) {
             if (rcmd == 'a') {
-                sat.printf("rcmd=%c,cmdflag=%d\r\n",rcmd,cmdflag);
-                com.printf("Hepta-Sat Lite Uplink Ok\r\n");
-                for(int j=0;j<5;j++){
-                    com.printf("Hello World!\r\n");
-                    condition = 1;
-                    wait_ms(1000);
-                }
-            }else if (rcmd == 'b') {
+                //Download GST Farm Sensors data from SD Card
                 sat.printf("rcmd=%c,cmdflag=%d\r\n",rcmd,cmdflag);
-                com.printf("Hepta-Sat Lite Uplink Ok\r\n");
-                char str[100];
-                mkdir("/sd/mydir", 0777);
-                FILE *fp = fopen("/sd/mydir/satdata.txt","w");
-                if(fp == NULL) {
-                    error("Could not open file for write\r\n");
-                }
-                for(int i = 0; i < 10; i++) {
-                    eps.vol(&batvol);
-                    fprintf(fp,"%f\r\n",batvol);
-                    condition = 1;
-                    wait_ms(1000);
+                com.printf("Hepta-Sat Uplink Ok\r\n");
+                char buffer[2048];
+                //Send all contents of SD Cards.
+                //TODO: Make it buffered
+                //TODO: Add temporary for safety
+                fp = fopen(target_path,"r");
+                while(fgets(buffer,2048,fp)) {
+                    char send_GS[2048];
+                    strcpy(send_GS, buffer);
+                    com.printf(send_GS);
                 }
                 fclose(fp);
-                fp = fopen("/sd/mydir/satdata.txt","r");
-                for(int i = 0; i < 10; i++) {
-                    fgets(str,100,fp);
-                    com.puts(str);
+                // remove the original file
+                remove(target_path);
+            } else if (rcmd == 'b') {
+                //Activate Buzzer
+                sat.printf("rcmd=%c,cmdflag=%d\r\n",rcmd,cmdflag);
+                com.printf("Hepta-Sat Uplink Ok\r\n");
+                sat.printf("Current Sattime: %d\r\n",sattime.read());
+                
+                int time=2; //Duration of time
+                
+                for(int t=time;t>=0; t--) {
+                    //sound on
+                    for(int i=0; i < sizeof(mm)/sizeof(mm[0]); i++) {
+                        sound.attach(&tick,1.0/mm[i]/2.0);
+                        wait(0.5f);
+                    }
+                    sound.detach();
+                    sat.printf("Current time: %d\r\n",t);
                 }
-                fclose(fp);                
-            }else if (rcmd == 'c') {        
+                //
+//                if(sattime.read() > 300) {
+//                    //sound on
+//                    for(int i=0; i < sizeof(mm)/sizeof(mm[0]); i++) {
+//                        sound.attach(&tick,1.0/mm[i]/2.0);
+//                        wait(0.5f);
+//                    }
+//                    sound.detach();
+//                }
+                //else {
+//                    sat.printf("Catch Some error here.\r\n");
+//                }
+            } else if (rcmd == 'c') {
                 //Please insert your answer
 
-            }else if (rcmd == 'd') {
+            } else if (rcmd == 'd') {
                 //Please insert your answer
 
-            }else if (rcmd == 'e') {
+            } else if (rcmd == 'e') {
                 //Please insert your answer
 
             }
             com.initialize();
         }
     }
+
     sattime.stop();
     sat.printf("From Sat : End of operation\r\n");
     com.printf("From Sat : End of operation\r\n");