Jari Ojanen
HaTemp - Home automation temperature measurement module.
Dependencies: DS1820 RF12B mbed
Revision 0:e3445bf3717d, committed 2016-06-09
- Comitter:
- jari
- Date:
- Thu Jun 09 15:12:35 2016 +0000
- Commit message:
- reads several sensors and new communication protocol
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DS1820.lib Thu Jun 09 15:12:35 2016 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/jari/code/DS1820/#980691eb0534
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/RF12B.lib Thu Jun 09 15:12:35 2016 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/jari/code/RF12B/#a5808054ac5f
--- /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]);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Jun 09 15:12:35 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/6c34061e7c34 \ No newline at end of file