Diff: main.cpp

Revision:

0:e3445bf3717d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jun 09 15:12:35 2016 +0000
@@ -0,0 +1,100 @@
+#include "mbed.h"
+#include "RF12B.h"
+#include "DS1820.h"
+#include "Ticker.h"
+#include "time.h"
+
+//#define USE_RF12
+//#define USE_RTC
+
+//-----------------------------------------------------------------------------
+#ifdef USE_RF12
+RF12B rfm12b(PB_4, PB_5, PB_3, PA_8, PA_10); // sdi, sdo, sclk, ncs, nirq
+#endif
+Ticker tick1;
+DigitalOut led1(LED1);
+
+const int MAX_PROBES = 4;
+DS1820* probe[MAX_PROBES];
+float temp[MAX_PROBES];
+
+//-----------------------------------------------------------------------------
+void tick()
+{
+    led1 = !led1;
+    printf("tick\n");
+}
+
+//-----------------------------------------------------------------------------
+int search_ds1820()
+{
+    int i;
+    int found=0;
+
+    // Initialize the probe array to DS1820 objects
+    for (i = 0; i < MAX_PROBES; i++)
+        probe[i] = new DS1820(PA_3);
+
+    // Initialize global state variables
+    probe[0]->search_ROM_setup();
+    
+    // Loop to find all devices on the data line
+    while (probe[found]->search_ROM() && found < (MAX_PROBES-1))
+        found++;
+        
+    // If maximum number of probes are found, 
+    // bump the counter to include the last array entry
+    if (probe[found]->ROM[0] != 0xFF)
+        found++;
+        
+    return found;
+}
+
+//-----------------------------------------------------------------------------
+int main() 
+{
+    int dsCount;
+    int counter = 0;
+    
+    // init RTC
+    //
+#ifdef USE_RTC
+    struct tm  clock;
+    clock.tm_year = 2015;
+    clock.tm_mon = 7;
+    clock.tm_mday = 12;
+    clock.tm_hour = 12;
+    clock.tm_min = 00;
+ 
+    set_time(mktime(&clock));
+#endif
+
+    dsCount = search_ds1820();
+    printf("sensors: %d\n", dsCount);
+    
+    tick1.attach(&tick, 2.0);
+#ifdef USE_RF12
+    rfm12b.init(2, RF12_868MHZ, 5);   //id = 2, band 868, group 5
+    rfm12b.rf12_recvStart();
+#endif
+    while(1) {
+        wait(4.0);
+
+#ifdef USE_RTC        
+        time_t seconds = time(NULL);
+        char tstr[16];
+        
+        strftime(tstr, 16, "%d/%m %H:%M:%S", localtime(&seconds));
+        printf("%s", tstr);
+#endif
+        for (int i=0; i<dsCount; i++) {
+            probe[i]->convert_temperature(DS1820::all_devices);
+            temp[i] = probe[i]->temperature();
+        }
+             
+#ifdef USE_RF12           
+        rfm12b.sendStart(0, &temp, sizeof(temp));
+#endif
+        printf("m %d %f %f 0.0 0.0\n", counter, temp[0], temp[1]);
+    }
+}