Alexander Scheinost / DS18B20

Libary for DS18B20 working in MBED-OS

ds18b20.h@0:1abc4873af36, 2020-11-04 (annotated)

Committer:
Scheinost_Alexander
Date:
Wed Nov 04 07:36:02 2020 +0000
Revision:
0:1abc4873af36
Libary for DS18B20; working in MBED-OS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Scheinost_Alexander 0:1abc4873af36 1 #ifndef ds18b20_h
Scheinost_Alexander 0:1abc4873af36 2 #define ds18b20_h
Scheinost_Alexander 0:1abc4873af36 3
Scheinost_Alexander 0:1abc4873af36 4 #include "mbed.h"
Scheinost_Alexander 0:1abc4873af36 5
Scheinost_Alexander 0:1abc4873af36 6 #define OWI_SKIP_ROM 0xCC
Scheinost_Alexander 0:1abc4873af36 7 #define DS18S20_START 0x44
Scheinost_Alexander 0:1abc4873af36 8 #define DS18S20_READ_SCRATCH_PAD 0xBE
Scheinost_Alexander 0:1abc4873af36 9
Scheinost_Alexander 0:1abc4873af36 10 class OWI
Scheinost_Alexander 0:1abc4873af36 11 {
Scheinost_Alexander 0:1abc4873af36 12 public:
Scheinost_Alexander 0:1abc4873af36 13 OWI(PinName pin);
Scheinost_Alexander 0:1abc4873af36 14 void sendByte(unsigned char data);
Scheinost_Alexander 0:1abc4873af36 15 unsigned char receiveByte();
Scheinost_Alexander 0:1abc4873af36 16 unsigned char detectPresence();
Scheinost_Alexander 0:1abc4873af36 17
Scheinost_Alexander 0:1abc4873af36 18 private:
Scheinost_Alexander 0:1abc4873af36 19 void write0();
Scheinost_Alexander 0:1abc4873af36 20 void write1();
Scheinost_Alexander 0:1abc4873af36 21 unsigned char readBit();
Scheinost_Alexander 0:1abc4873af36 22 DigitalInOut owi_io;
Scheinost_Alexander 0:1abc4873af36 23 };
Scheinost_Alexander 0:1abc4873af36 24
Scheinost_Alexander 0:1abc4873af36 25 class DS18B20
Scheinost_Alexander 0:1abc4873af36 26 {
Scheinost_Alexander 0:1abc4873af36 27 public:
Scheinost_Alexander 0:1abc4873af36 28 DS18B20(PinName pin);
Scheinost_Alexander 0:1abc4873af36 29 float readTemp();
Scheinost_Alexander 0:1abc4873af36 30
Scheinost_Alexander 0:1abc4873af36 31 private:
Scheinost_Alexander 0:1abc4873af36 32 OWI DS18B20_OWI;
Scheinost_Alexander 0:1abc4873af36 33 };
Scheinost_Alexander 0:1abc4873af36 34
Scheinost_Alexander 0:1abc4873af36 35 #endif