Jack Hansdampf / Mbed OS DS1820ohneWebserver

DS1820, DS18B20 single and multi sensor OS6 compliant. Based on Erik's original code. Tested on ST's F767, L152RE and H743 platforms. Using single and multiple sensors up to 15 meters of cable length.

Dependencies:   LCD_i2c_GSOE ESP8266WebserverGSOE DS1820

main.cpp@3:e8f1dc9131eb, 2021-08-07 (annotated)

Committer:
jack1930
Date:
Sat Aug 07 18:57:33 2021 +0000
Revision:
3:e8f1dc9131eb
Parent:
2:2c947079aae0 
Vorbereitet fuer Webserver

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jack1930 2:2c947079aae0 1 //basiert auf dem DS1820-Example von Paul Staron
jack1930 2:2c947079aae0 2
star297 0:a3c589406dc4 3 #include "mbed.h"
star297 0:a3c589406dc4 4 #include "DS1820.h"
jack1930 2:2c947079aae0 5 #include "LCD.h"
star297 0:a3c589406dc4 6
star297 0:a3c589406dc4 7 DigitalOut led(LED1);
jack1930 2:2c947079aae0 8 lcd mylcd;
star297 0:a3c589406dc4 9
jack1930 3:e8f1dc9131eb 10 #define DATA_PIN PB_0 //Anschluss S
jack1930 3:e8f1dc9131eb 11 //GND Anschluss -
jack1930 3:e8f1dc9131eb 12 //3,3V mittlerer Anschluss
jack1930 3:e8f1dc9131eb 13
star297 0:a3c589406dc4 14 #define MAX_PROBES 16
star297 0:a3c589406dc4 15 DS1820* probe[MAX_PROBES];
star297 0:a3c589406dc4 16
star297 0:a3c589406dc4 17 Timer t;
star297 0:a3c589406dc4 18
star297 0:a3c589406dc4 19 int DS;
star297 0:a3c589406dc4 20 float Temp[16];
star297 0:a3c589406dc4 21
star297 0:a3c589406dc4 22 int main(){
jack1930 2:2c947079aae0 23 mylcd.clear();
star297 0:a3c589406dc4 24 printf("\033[0m\033[2J\033[HInitialise...!\n\n");
star297 0:a3c589406dc4 25
star297 0:a3c589406dc4 26 while (DS1820::unassignedProbe(DATA_PIN)) {
star297 0:a3c589406dc4 27 probe[DS] = new DS1820(DATA_PIN);
star297 0:a3c589406dc4 28 DS++;
star297 0:a3c589406dc4 29 if (DS == MAX_PROBES) {
star297 0:a3c589406dc4 30 break;
star297 0:a3c589406dc4 31 }
star297 0:a3c589406dc4 32 }
star297 0:a3c589406dc4 33
star297 0:a3c589406dc4 34 if (!DS) {
star297 0:a3c589406dc4 35 printf("No Sensors found!\n\n");
star297 0:a3c589406dc4 36 ThisThread::sleep_for(chrono::milliseconds(1000));
star297 0:a3c589406dc4 37 NVIC_SystemReset();
star297 0:a3c589406dc4 38 }
star297 0:a3c589406dc4 39
star297 0:a3c589406dc4 40 // set each probe resolution, default is 12bit (750ms)
star297 0:a3c589406dc4 41 probe[0]->setResolution(9);
star297 0:a3c589406dc4 42 // probe[0]->setResolution(10);
star297 0:a3c589406dc4 43 // probe[0]->setResolution(11);
star297 0:a3c589406dc4 44 // probe[0]->setResolution(12);
star297 0:a3c589406dc4 45 // probe[1]->setResolution(9);
star297 0:a3c589406dc4 46 // probe[2]->setResolution(10);
star297 0:a3c589406dc4 47
star297 0:a3c589406dc4 48 t.start();
star297 0:a3c589406dc4 49
star297 0:a3c589406dc4 50 while(1) {
star297 0:a3c589406dc4 51
star297 0:a3c589406dc4 52 printf("\033[0m\033[2J\033[HDS Sensor data..\n\n");
star297 0:a3c589406dc4 53
star297 0:a3c589406dc4 54 int DS_error = 0;
star297 0:a3c589406dc4 55 for (int i = 0; i < DS; i++) {
star297 0:a3c589406dc4 56 Temp[i] = probe[i]->temperature();
star297 0:a3c589406dc4 57 if(Temp[i]==-1000) {
star297 0:a3c589406dc4 58 Temp[i] = probe[i]->temperature(); // get read temp again if error
star297 0:a3c589406dc4 59 DS_error++;
star297 0:a3c589406dc4 60 }
jack1930 3:e8f1dc9131eb 61
jack1930 3:e8f1dc9131eb 62 mylcd.cursorpos(0x40);
jack1930 3:e8f1dc9131eb 63 mylcd.printf("%3.1f ",Temp[i]);
star297 0:a3c589406dc4 64 }
star297 0:a3c589406dc4 65 printf("\nDS errors: %d\n\n", DS_error);
star297 0:a3c589406dc4 66
star297 0:a3c589406dc4 67 printf("Start conversion\n");
star297 0:a3c589406dc4 68 t.reset();
star297 0:a3c589406dc4 69 // don't wait for conversion, but do something that takes at least 750ms before reading the sensors
star297 0:a3c589406dc4 70 //if(DS>0){probe[0]->convertTemperature(0, DS1820::all_devices);}
star297 0:a3c589406dc4 71
star297 0:a3c589406dc4 72 // wait for conversion, can take up to 750ms(12 bit mode)
star297 0:a3c589406dc4 73 if(DS>0){probe[0]->convertTemperature(1, DS1820::all_devices);}
star297 0:a3c589406dc4 74
star297 0:a3c589406dc4 75 printf("\nConvert process time: %0.6f Seconds\n", chrono::duration<float>(t.elapsed_time()).count());
star297 0:a3c589406dc4 76
star297 0:a3c589406dc4 77 ThisThread::sleep_for(chrono::milliseconds(1000));
star297 0:a3c589406dc4 78 }
star297 0:a3c589406dc4 79 }