lu sheng / Mbed 2 deprecated NUCLEO-F070R-DS1820

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Dependencies:   mbed

Fork of NUCLEO-F401RE-DS1820andThermistorNTC10K by Enrico Marinoni

main.cpp@5:22fb02a92579, 2016-10-21 (annotated)

Committer:
anywill
Date:
Fri Oct 21 01:48:28 2016 +0000
Revision:
5:22fb02a92579
Parent:
4:02a922030bc3
Child:
6:7f43285de85b
DS18B20??

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emcu 4:02a922030bc3 1
emcu 4:02a922030bc3 2 /**
emcu 4:02a922030bc3 3
anywill 5:22fb02a92579 4 NUCLEO-F070R + DS18B20
anywill 5:22fb02a92579 5
emcu 4:02a922030bc3 6
anywill 5:22fb02a92579 7 By:
anywill 5:22fb02a92579 8 Date: Oct.2016
anywill 5:22fb02a92579 9 Version: 1.0
anywill 5:22fb02a92579 10 Name: NUCLEO-F070R-DS1820
anywill 5:22fb02a92579 11 NOTE: For more info see here: http://www.emcu.it/NUCLEOevaBoards/mBed/QSG-Mbed-Library.pdf
anywill 5:22fb02a92579 12 原程序带NTC测温,本人将已其删除
emcu 4:02a922030bc3 13
anywill 5:22fb02a92579 14 UART
emcu 4:02a922030bc3 15 Baud Rate: 9600
emcu 4:02a922030bc3 16 Data Bit: 8
emcu 4:02a922030bc3 17 Parity: NONE
emcu 4:02a922030bc3 18 Stop Bit: 1
emcu 4:02a922030bc3 19 Flow Control: NONE
emcu 4:02a922030bc3 20
anywill 5:22fb02a92579 21
anywill 5:22fb02a92579 22 Connect to the NUCLEO-F070R8 the DS18B20 sensor (see the schematic below).
emcu 4:02a922030bc3 23 The temperature sampling time is 1 sec.
emcu 4:02a922030bc3 24
emcu 4:02a922030bc3 25 DS18B20 front view
emcu 4:02a922030bc3 26 __________
emcu 4:02a922030bc3 27 | |
emcu 4:02a922030bc3 28 | DS |
emcu 4:02a922030bc3 29 | 18B20 |
emcu 4:02a922030bc3 30 | |
emcu 4:02a922030bc3 31 |__________|
emcu 4:02a922030bc3 32 | | |
emcu 4:02a922030bc3 33 1 2 3
emcu 4:02a922030bc3 34 GND DQ VCC (3V3)
anywill 5:22fb02a92579 35 | | |______________ to VCC (3.3V on the NUCLEO-F070R)
emcu 4:02a922030bc3 36 | | _|_
emcu 4:02a922030bc3 37 | | | |
emcu 4:02a922030bc3 38 | | | | 4K7
emcu 4:02a922030bc3 39 | | | |
emcu 4:02a922030bc3 40 | | -|-
anywill 5:22fb02a92579 41 | |___|______________ to A1 (on the NUCLEO-F070RE)
emcu 4:02a922030bc3 42 |
emcu 4:02a922030bc3 43 |
anywill 5:22fb02a92579 44 |______________________ to GND (on the NUCLEO-F070RE)
emcu 4:02a922030bc3 45
emcu 4:02a922030bc3 46 This SW is just for only one DS18B20
emcu 4:02a922030bc3 47 This SW is a derivative of:: https://developer.mbed.org/users/Sissors/code/DS1820_HelloWorld/
emcu 4:02a922030bc3 48 On the: https://developer.mbed.org/users/Sissors/code/DS1820_HelloWorld/ there is a multi sensor (DS18B20) example.
emcu 4:02a922030bc3 49
anywill 5:22fb02a92579 50
emcu 4:02a922030bc3 51 */
emcu 4:02a922030bc3 52
Sissors 0:e069f9f26768 53 #define MULTIPLE_PROBES
emcu 4:02a922030bc3 54 #define DATA_PIN A1
Sissors 0:e069f9f26768 55
Sissors 0:e069f9f26768 56 #ifdef MULTIPLE_PROBES
Sissors 0:e069f9f26768 57
Sissors 0:e069f9f26768 58 #include "mbed.h"
Sissors 0:e069f9f26768 59 #include "DS1820.h"
Sissors 0:e069f9f26768 60
Sissors 0:e069f9f26768 61 #define MAX_PROBES 16
emcu 4:02a922030bc3 62
emcu 4:02a922030bc3 63 float get_temperature(void);
emcu 4:02a922030bc3 64
anywill 5:22fb02a92579 65 //AnalogIn thermistor(A5); // Thermistor
emcu 4:02a922030bc3 66
emcu 4:02a922030bc3 67 float temp=0;
emcu 4:02a922030bc3 68 float tempArr[100];
anywill 5:22fb02a92579 69 int n=0;//n个测温设备
anywill 5:22fb02a92579 70 Serial pc(SERIAL_TX, SERIAL_RX); // 虚拟 USART2 tx, rx
Sissors 0:e069f9f26768 71 DS1820* probe[MAX_PROBES];
Sissors 0:e069f9f26768 72
anywill 5:22fb02a92579 73 int main()
anywill 5:22fb02a92579 74 {
Sissors 0:e069f9f26768 75 // Initialize the probe array to DS1820 objects
Sissors 0:e069f9f26768 76 int num_devices = 0;
Sissors 0:e069f9f26768 77 while(DS1820::unassignedProbe(DATA_PIN)) {
Sissors 0:e069f9f26768 78 probe[num_devices] = new DS1820(DATA_PIN);
Sissors 0:e069f9f26768 79 num_devices++;
Sissors 0:e069f9f26768 80 if (num_devices == MAX_PROBES)
Sissors 0:e069f9f26768 81 break;
Sissors 0:e069f9f26768 82 }
Sissors 0:e069f9f26768 83
anywill 5:22fb02a92579 84 printf("Found %d device(s)\r\n\n", num_devices);//检测到n个测温设备
anywill 5:22fb02a92579 85
emcu 4:02a922030bc3 86 while(1)
emcu 4:02a922030bc3 87 {
Sissors 0:e069f9f26768 88 probe[0]->convertTemperature(true, DS1820::all_devices); //Start temperature conversion, wait until ready
Sissors 0:e069f9f26768 89 for (int i = 0; i<num_devices; i++)
anywill 5:22fb02a92579 90 printf("Device %d returns %3.3f oC\r\n", i, probe[i]->temperature());
anywill 5:22fb02a92579 91
emcu 4:02a922030bc3 92
Sissors 0:e069f9f26768 93 wait(1);
Sissors 0:e069f9f26768 94 }
Sissors 0:e069f9f26768 95
Sissors 0:e069f9f26768 96 }
Sissors 0:e069f9f26768 97
Sissors 0:e069f9f26768 98 #else
Sissors 0:e069f9f26768 99 #include "mbed.h"
Sissors 0:e069f9f26768 100 #include "DS1820.h"
Sissors 0:e069f9f26768 101
Sissors 0:e069f9f26768 102 DS1820 probe(DATA_PIN);
Sissors 0:e069f9f26768 103
Sissors 0:e069f9f26768 104 int main() {
Sissors 0:e069f9f26768 105 while(1) {
Sissors 0:e069f9f26768 106 probe.convertTemperature(true, DS1820::all_devices); //Start temperature conversion, wait until ready
anywill 5:22fb02a92579 107 printf("It is %3.3f oC\r\n", probe.temperature());
Sissors 0:e069f9f26768 108 wait(1);
Sissors 0:e069f9f26768 109 }
Sissors 0:e069f9f26768 110 }
Sissors 0:e069f9f26768 111
emcu 4:02a922030bc3 112 #endif