DS18B20

[last updated: 2017-09-26]
go to: GMC rPi GUI
go to: compost temperature meter
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Maxim one-wire temperature sensor

Specs/Features:
• my versions are waterproof (Adafruit id: 381)
• Use pull-up resistor (nom 4.7k) on data line
• measurement range:
  max 125C (though PVC insulation should not exceed 100C)
  minimum -55C
  accuracy +/- 0.5degC from -10C - +85C
• temperature limit alarm system
• query time less than 750ms
• 3 wires:
  red - power 3-5vdc
  blue or black - ground
  yellow or white - data/signal
• 9 - 12-bit selectable resolution
• unique 64-bit ID in each sensor

(go to:) Programming on the rPi

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