Diff: main.cpp

Revision:

0:9c03bf9526c4

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Dec 11 13:58:25 2019 +0000
@@ -0,0 +1,36 @@
+#include "mbed.h"
+ #include "DS1820.h"
+ 
+ Serial      pc(USBTX, USBRX);
+ DigitalOut  led(LED1);
+ DS1820      ds1820(D8);  // substitute D8 with actual mbed pin name connected to 1-wire bus
+ float       temp = 0;
+ int         result = 0;
+ 
+ int main()
+ {
+     pc.printf("\r\n--Starting--\r\n");
+     if (ds1820.begin()) {
+         while (1) {
+             ds1820.startConversion();   // start temperature conversion from analog to digital
+             wait(1.0);                  // let DS1820 complete the temperature conversion
+             result = ds1820.read(temp); // read temperature from DS1820 and perform cyclic redundancy check (CRC)
+             switch (result) {
+                 case 0:                 // no errors -> 'temp' contains the value of measured temperature
+                     pc.printf("temp = %3.1f%cC\r\n", temp, 176);
+                     break;
+ 
+                 case 1:                 // no sensor present -> 'temp' is not updated
+                     pc.printf("no sensor present\n\r");
+                     break;
+ 
+                 case 2:                 // CRC error -> 'temp' is not updated
+                     pc.printf("CRC error\r\n");
+             }
+ 
+             led = !led;
+         }
+     }
+     else
+         pc.printf("No DS1820 sensor found!\r\n");
+ }
\ No newline at end of file