DS18X20 1-Wire-Reader Demo

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Scanning Bus for DS18X20

2 DS18X20 Sensors available:

# in Bus :1 : FC:28 (18B)SN: 67 C6 6B 00 00 00 CRC:E2  CRC O.K. 

# in Bus :2 : FC:28 (18B)SN: 44 D7 6B 00 00 00 CRC:BC  CRC O.K. 

Sensor# 1 is a DS18B20 which is parasite powered

Sensor# 2 is a DS18B20 which is externally powered



Convert_T and Read for every Sensor (reverse order)

Sensor# 2 = +20.9375°C [+20.9°C]

Sensor# 1 = +20.8750°C [+20.9°C]



Convert_T for all Sensors and Read for single Sensor

Sensor# 1 = +20.8750°C [+20.9°C]

Sensor# 2 = +20.9375°C [+20.9°C]



Verbose output

FC:28 (18B)SN: 67 C6 6B 00 00 00 CRC:E2  CRC O.K. 

SP:4E 01 4B 46 7F FF 02 10 CRC:D9  CRC O.K. 

 T_raw=014E B20/12 +20.8750°C

FC:28 (18B)SN: 44 D7 6B 00 00 00 CRC:BC  CRC O.K. 

SP:4F 01 4B 46 7F FF 01 10 CRC:CF  CRC O.K. 

 T_raw=014F B20/12 +20.9375°C