main.cpp

00001 #include "mbed.h"
00002 #include <RF22.h>
00003 #include <RF22ReliableDatagram.h>
00004 #include <GPS.h>
00005  
00006 // Sample programm for ReliableDatagramm Sending
00007 // Uses address 1 and sends to RF22 with address 2
00008 // See notebook http://mbed.org/users/charly/notebook/rfm22/ for connecting RFM22 to mbed
00009 DigitalOut myled(LED1); 
00010 Serial pc(USBTX, USBRX);
00011 GPS af(PB_10, PB_11);
00012 //RF22ReliableDatagram (uint8_t thisAddress, PinName slaveSelectPin, PinName mosi, PinName miso, PinName sclk, PinName interrupt)
00013 RF22ReliableDatagram rf22(0,PB_6,PA_7,PA_6,PA_5,PA_10);
00014  
00015 float frequency = 433;           // frequency 
00016  
00017 const uint8_t sender_adress = 1;        // address of sender
00018 const uint8_t receiver_adress =2;       // address of receiver
00019  
00020  
00021 // send messages forever
00022 int send_loop() {
00023     uint8_t data[32] = "";
00024     int flagcheck1=0;
00025  
00026     while (flagcheck1==0) {
00027         
00028         if(af.sample()==1)
00029         {
00030             float latitude=af.latitude;
00031             float longitude=af.longitude;
00032         sprintf((char*)data,"%f,%f",latitude,longitude);
00033         pc.printf("%f, %f",latitude,longitude);
00034         //sendtoWait(uint8_t* buf, uint8_t len, uint8_t address);
00035         pc.printf("\n\rStart sending ... ");
00036         if (rf22.sendtoWait(data, sizeof(data), receiver_adress)) {
00037             pc.printf("Send to %i ACK: >>%s<< ", receiver_adress,(char*)data);
00038         } 
00039         else {
00040             pc.printf("Send to %i NOTACK: >>%s<< ", receiver_adress,(char*)data);
00041         }
00042         pc.printf("sleeping 2 seconds...  ");
00043         flagcheck1=1;
00044         wait(1); 
00045         }
00046         else
00047         {
00048             myled=1;
00049             wait(0.5);
00050             myled=0;
00051             wait(0.5);
00052         } // Wait 2 Seconds
00053     }
00054 }
00055  void rfcheck()
00056  {
00057     pc.printf("\n\rConnected to mbed\n\r");
00058  
00059     pc.printf ("RF22-Test-Reliable-Send V1.0\n\r");
00060  
00061     // initialize the device
00062     if (!rf22.init())
00063         pc.printf("RF22 init failed\n\r");
00064  
00065     // set to 19.2 KB
00066     if (!rf22.setModemConfig(RF22::GFSK_Rb19_2Fd9_6))
00067         pc.printf("setModemConfig failed");
00068  
00069     if (!rf22.setFrequency(frequency))
00070         pc.printf("setFrequency failed");
00071  
00072     // Code for sending
00073     pc.printf("I am sending with address %i to adress %i ...\n\r",sender_adress,receiver_adress  );
00074     rf22.setThisAddress(sender_adress);     // sender-adress
00075   
00076   }
00077 int main() {
00078  
00079     pc.baud(9600);
00080     rfcheck();
00081     
00082     send_loop();                // start sending
00083 }
00084