DS18B20

[last updated: 2017-09-26]
GMC rPi GUI
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

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• Programming on the rPi

• On Arduino:
  • Minimum program:

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