Diff: main.cpp

Revision:

0:5f5b4e506d94

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Apr 28 08:18:58 2011 +0000
@@ -0,0 +1,43 @@
+/* This is a thermometer using DS1820. With DS1820 library 
+of Michael Hagberg, I just used most of the sample cords.
+Please see notebook [http://mbed.org/users/jf1vrr/notebook/ds1820-thermometer/].
+*/
+#include "mbed.h"
+#include "TextLCD.h"
+#include "DS1820.h"
+
+TextLCD lcd(p24, p26, p27, p28, p29, p30);
+
+const int MAX_PROBES = 1;
+DS1820* probe[MAX_PROBES];
+
+int main() {
+    int i;
+    int devices_found=0;
+    // Initialize the probe array to DS1820 objects
+     for (i = 0; i < MAX_PROBES; i++)
+        probe[i] = new DS1820(p19);
+    // Initialize global state variables
+    probe[0]->search_ROM_setup();
+    // Loop to find all devices on the data line
+    while (probe[devices_found]->search_ROM() and devices_found<MAX_PROBES-1)
+        devices_found++;
+    // If maximum number of probes are found, 
+    // bump the counter to include the last array entry
+    if (probe[devices_found]->ROM[0] != 0xFF)
+        devices_found++;
+
+    lcd.cls();
+    if (devices_found==0)
+        lcd.printf("No devices found");
+    else {
+        lcd.printf("DS1820 Thermo" );
+        while (true) {
+            probe[0]->convert_temperature(DS1820::all_devices);
+            lcd.locate(0,1);
+            for (i=0; i<devices_found; i++) {
+                lcd.printf("%4.1fc",probe[i]->temperature('c'));
+            }
+        }
+    }
+}