Diff: main.cpp

Revision:

0:a07ccbfc0b89

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Feb 21 11:03:55 2016 +0000
@@ -0,0 +1,130 @@
+#include "mbed.h"
+#include <stdint.h>
+#include "DS18B20.h"
+#include "DHT.h"
+#include "EthernetInterface.h"
+#include "Hx711.h"
+
+#define RATE 1
+#define SensorOffset 0
+
+char* SERVER_ADDRESS = "172.31.2.3";
+const int SERVER_PORT = 2223;
+
+
+typedef struct {
+ char CtrlType;
+ long RawData;
+ long Offset;
+}  __attribute__ ((packed)) TStatus;   
+
+typedef struct {
+ char CtrlType;
+ float tempeture;     //nuværende temperatur
+ float setpoint;      //Hvad temperatur vi skal nå.
+ float weigth;        //Vægten af fadet
+ float OutTemp;       //Udendørs temperatur
+ float OutHum;        //udendør hymidity
+ float Hyst;          //Hysterese  
+}  __attribute__ ((packed)) Tsetting;
+
+DigitalOut led(LED_GREEN);  //Indikator på frys
+DigitalOut Cool(A3);        //Fryser relæ
+
+HX711 LoadCell(A4,A5); 
+DHT dht22(A2,DHT22);  //Udendørs temperatur
+ 
+Serial pc(USBTX, USBRX);     // serial comms over usb back to console
+DS18B20 thermom(A1, DS18B20::RES_12_BIT); // Dallas 1-wire
+float SetTemp;
+
+Tsetting status;
+EthernetInterface eth;
+UDPSocket server,sock;;    //Denne server. Modtager data fra PC sock er til at sende data
+Endpoint process_server, DataIn;
+
+void ReadTemp() {
+    status.tempeture=thermom.GetTemperature()-SensorOffset;
+    while ((status.tempeture<-20) || (status.tempeture>110)) status.tempeture=thermom.GetTemperature(); //læs igen
+    if (status.tempeture>(status.setpoint+status.Hyst))  {
+       Cool=1; led=0;
+    }
+    if (status.tempeture<(status.setpoint-status.Hyst))  {
+       Cool=0; led=1;
+    }
+    
+}    
+
+void ReadSocketDate(void const *args) {
+ char buffer[256];
+ printf("ReadThread Init Done\r\n");
+ while (1) {
+    int n = server.receiveFrom(DataIn, buffer, sizeof(buffer));
+    if (buffer[0]==0) { //seach function
+        if (strcmp(DataIn.get_address(),process_server.get_address())!=0) {
+           process_server.set_address(DataIn.get_address(),SERVER_PORT); 
+           printf(" New Adress: %s\r\n",DataIn.get_address());
+        } 
+    }    
+    if (buffer[0]==1) {
+        memcpy(&status,&buffer[0],sizeof(status));
+        printf("NEW Settings [%s]:\r\n",DataIn.get_address());
+        printf(" setpoint: %.1f \r\n",status.setpoint);    
+    }
+    if (buffer[0]==2) {
+       printf("Set new zero for loadCell\r\n");
+       LoadCell.tare(50); 
+    }    
+ }       
+}    
+
+int main() {
+  char out_buffer[sizeof(status)];
+  led=1; 
+  pc.printf("\n\r---------------------------------------------------------------\n\r");
+  pc.printf("Fryser Controller INIT\n\r");
+  status.CtrlType=2;
+  status.setpoint=0;
+  eth.init(); //Use DHCP  
+  eth.connect();
+  pc.printf("IP Address is %s\n\r", eth.getIPAddress());  
+  
+  sock.init();
+  server.bind(SERVER_PORT);
+  
+  process_server.set_address(SERVER_ADDRESS, SERVER_PORT);
+      
+  pc.printf("Temp Sensor: \n\r");
+  DS18B20::ROM_Code_t ROM_Code;
+  thermom.ReadROM(&ROM_Code);
+  pc.printf("Family code: 0x%X\n\r", ROM_Code.BYTES.familyCode);
+  pc.printf("Serial Number: ");
+  for (unsigned i = 6; i != 0; --i) {
+      pc.printf("%02X%s", ROM_Code.BYTES.serialNo[i-1], (i != 1)?":":"\r\n");
+  }
+  pc.printf("CRC: 0x%X\r\n", ROM_Code.BYTES.CRC);
+  Thread DbThread(ReadSocketDate, NULL, osPriorityNormal, (DEFAULT_STACK_SIZE * 2.25));
+  
+  LoadCell.set_scale(1); //Sættes afhængigt af sensor
+  pc.printf("---------------------------------------------------------------\n\r");
+  
+  pc.printf("\n\rRunning ...\n\r");
+  
+  
+  while (1) {
+      ReadTemp();  //
+      status.weigth=LoadCell.get_units(20);
+      int err=dht22.readData();
+       if (err==0) {
+          status.OutTemp=dht22.ReadTemperature(CELCIUS);
+          status.OutHum =dht22.ReadHumidity();
+ //         printf("T: %.1f C",dht22.ReadTemperature(CELCIUS));
+//          printf(" H %.1f\% \n\r",dht22.ReadHumidity());          
+       }
+      //send data til PC
+    //  printf("%.1f \r\n",status.tempeture );
+      memcpy(&out_buffer[0],&status.CtrlType,sizeof(status));
+      sock.sendTo(process_server, out_buffer, sizeof(status)); 
+      wait(2);         
+  }
+}
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