Diff: main.cpp

Revision:

0:a3c589406dc4

Child:

2:2c947079aae0

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Dec 29 13:08:22 2020 +0000
@@ -0,0 +1,70 @@
+#include "mbed.h"
+#include "DS1820.h"
+
+DigitalOut led(LED1);
+
+#define DATA_PIN        A0
+#define MAX_PROBES      16
+DS1820* probe[MAX_PROBES];
+
+Timer t;
+
+int     DS;
+float   Temp[16]; 
+
+int main(){
+
+    printf("\033[0m\033[2J\033[HInitialise...!\n\n");
+
+    while (DS1820::unassignedProbe(DATA_PIN)) {
+        probe[DS] = new DS1820(DATA_PIN);
+        DS++;
+        if (DS == MAX_PROBES) {
+            break;
+        }
+    }
+    
+    if (!DS) {        
+        printf("No Sensors found!\n\n");
+        ThisThread::sleep_for(chrono::milliseconds(1000));
+        NVIC_SystemReset();
+    }
+
+    // set each probe resolution, default is 12bit (750ms)
+    probe[0]->setResolution(9);
+//    probe[0]->setResolution(10);
+//    probe[0]->setResolution(11);
+//    probe[0]->setResolution(12);
+//    probe[1]->setResolution(9);
+//    probe[2]->setResolution(10);
+
+    t.start();
+
+    while(1) {
+        
+        printf("\033[0m\033[2J\033[HDS Sensor data..\n\n");
+
+        int DS_error = 0;
+        for (int i = 0; i < DS; i++) {
+            Temp[i] = probe[i]->temperature();
+            if(Temp[i]==-1000) {
+                Temp[i] = probe[i]->temperature();  // get read temp again if error
+                DS_error++;
+            }
+            printf("Probe %d:  %3.2f %cc\r\n",i,Temp[i],0xb0);
+        }
+        printf("\nDS errors:  %d\n\n", DS_error);
+
+        printf("Start conversion\n");
+        t.reset();
+        // don't wait for conversion, but do something that takes at least 750ms before reading the sensors
+        //if(DS>0){probe[0]->convertTemperature(0, DS1820::all_devices);}
+        
+        // wait for conversion, can take up to 750ms(12 bit mode)
+        if(DS>0){probe[0]->convertTemperature(1, DS1820::all_devices);}        
+        
+        printf("\nConvert process time: %0.6f Seconds\n", chrono::duration<float>(t.elapsed_time()).count());
+
+        ThisThread::sleep_for(chrono::milliseconds(1000));
+    }
+}