Difference between revisions of "Sensors: DS18B20"

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allows multiple DS18B20s to function on the same 1-Wire  
 
allows multiple DS18B20s to function on the same 1-Wire  
 
bus
 
bus
 +
 +
The readings from 3 devices thermally tied together are very stable and close to each other:
 +
 +
Tue Jul 10 12:39:58 EDT 2018
 +
t=20750
 +
t=20562
 +
t=20625
 +
Tue Jul 10 12:40:30 EDT 2018
 +
t=20750
 +
t=20562
 +
t=20625
 +
Tue Jul 10 12:41:03 EDT 2018
 +
t=20750
 +
t=20562
 +
t=20625
 +
 +
Tue Jul 10 12:44:20 EDT 2018
 +
t=20750
 +
t=20562
 +
t=20625

Revision as of 08:57, 10 July 2018

File:DS18B20.pdf


  1. Power supply range: 3.0V to 5.5V.
  2. Operating temperature range: -55°C to +125°C (-67°F to +257°F).
  3. Accuracy over the range of -10°C to +85°C: ±0.5°C.
  4. No other components, uses 1-Wire Bus
  5. TO-92 case or in encapsulated in stainless steel tube.
  6. Output lead: red (VCC), yellow(DATA) , black(GND).

Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus

The readings from 3 devices thermally tied together are very stable and close to each other:

Tue Jul 10 12:39:58 EDT 2018
t=20750
t=20562
t=20625
Tue Jul 10 12:40:30 EDT 2018
t=20750
t=20562
t=20625
Tue Jul 10 12:41:03 EDT 2018
t=20750
t=20562
t=20625

Tue Jul 10 12:44:20 EDT 2018
t=20750
t=20562
t=20625