Michael Zapp / DS1820_HelloWorld_copy

testing DS1820

Dependencies:   DS1820 mbed-dev

Fork of DS1820_HelloWorld by Erik -

main.cpp@5:7cc3a5fc200d, 2017-08-01 (annotated)

Committer:
zappo
Date:
Tue Aug 01 10:47:48 2017 +0000
Revision:
5:7cc3a5fc200d
Parent:
3:f483abe4bc57 
test1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Sissors 0:e069f9f26768 1 #define MULTIPLE_PROBES
zappo 5:7cc3a5fc200d 2 #define DATA_PIN A0 // A0 = P0_23
Sissors 0:e069f9f26768 3
Sissors 0:e069f9f26768 4
Sissors 0:e069f9f26768 5 #ifdef MULTIPLE_PROBES
Sissors 0:e069f9f26768 6
Sissors 0:e069f9f26768 7 #include "mbed.h"
Sissors 0:e069f9f26768 8 #include "DS1820.h"
Sissors 0:e069f9f26768 9
Sissors 0:e069f9f26768 10 #define MAX_PROBES 16
Sissors 0:e069f9f26768 11
Sissors 0:e069f9f26768 12 DS1820* probe[MAX_PROBES];
zappo 5:7cc3a5fc200d 13 Serial pc(USBTX, USBRX);
Sissors 0:e069f9f26768 14
zappo 5:7cc3a5fc200d 15 int main()
zappo 5:7cc3a5fc200d 16 {
zappo 5:7cc3a5fc200d 17 pc.baud(115200);
zappo 5:7cc3a5fc200d 18 pc.printf("Initialize probes...");
zappo 5:7cc3a5fc200d 19
Sissors 0:e069f9f26768 20 // Initialize the probe array to DS1820 objects
Sissors 0:e069f9f26768 21 int num_devices = 0;
Sissors 0:e069f9f26768 22 while(DS1820::unassignedProbe(DATA_PIN)) {
Sissors 0:e069f9f26768 23 probe[num_devices] = new DS1820(DATA_PIN);
Sissors 0:e069f9f26768 24 num_devices++;
Sissors 0:e069f9f26768 25 if (num_devices == MAX_PROBES)
Sissors 0:e069f9f26768 26 break;
Sissors 0:e069f9f26768 27 }
Sissors 0:e069f9f26768 28
Sissors 0:e069f9f26768 29 printf("Found %d device(s)\r\n\n", num_devices);
Sissors 0:e069f9f26768 30 while(1) {
Sissors 0:e069f9f26768 31 probe[0]->convertTemperature(true, DS1820::all_devices); //Start temperature conversion, wait until ready
Sissors 0:e069f9f26768 32 for (int i = 0; i<num_devices; i++)
zappo 5:7cc3a5fc200d 33 printf("Device %d returns %3.1f oC", i, probe[i]->temperature());
Sissors 0:e069f9f26768 34 printf("\r\n");
zappo 5:7cc3a5fc200d 35 wait_us(10000);
Sissors 0:e069f9f26768 36 }
Sissors 0:e069f9f26768 37
Sissors 0:e069f9f26768 38 }
Sissors 0:e069f9f26768 39
Sissors 0:e069f9f26768 40 #else
Sissors 0:e069f9f26768 41 #include "mbed.h"
Sissors 0:e069f9f26768 42 #include "DS1820.h"
Sissors 0:e069f9f26768 43
Sissors 0:e069f9f26768 44 DS1820 probe(DATA_PIN);
zappo 5:7cc3a5fc200d 45 Serial pc(USBTX, USBRX);
Sissors 0:e069f9f26768 46
zappo 5:7cc3a5fc200d 47 int main()
zappo 5:7cc3a5fc200d 48 {
zappo 5:7cc3a5fc200d 49 pc.baud(115200);
zappo 5:7cc3a5fc200d 50 pc.printf("Initialize probes...");
zappo 5:7cc3a5fc200d 51
zappo 5:7cc3a5fc200d 52 while(1)
zappo 5:7cc3a5fc200d 53 {
Sissors 0:e069f9f26768 54 probe.convertTemperature(true, DS1820::all_devices); //Start temperature conversion, wait until ready
zappo 5:7cc3a5fc200d 55 pc.printf("It is %3.1foC\r\n", probe.temperature());
Sissors 0:e069f9f26768 56 wait(1);
Sissors 0:e069f9f26768 57 }
Sissors 0:e069f9f26768 58 }
Sissors 0:e069f9f26768 59
Sissors 0:e069f9f26768 60 #endif