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Toon onderwerp - ds18b20 • nodo-domotica.nl

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ds18b20

Hier alles over de hardware kant van de Nodo

Re: ds18b20

Berichtdoor Remko » 17 jan 2013, 12:23

Thanx helemaal goed. Ik kreeg geen grafiek omdat ik in eerste instantie expension no had. Het helpt dan schijnbaar niet meer om er yes van te maken maar moet je ff alles tbv de variabele opnieuw ingeven. Dan werkt het wel.
Arduino Ethernet W5100-netwerk shield
Arduino Mega 2560 ATmega2560-16AU
Nodo 1.2 met koppelprint
Software: V3.7
Remko
 
Berichten: 99
Geregistreerd: 26 okt 2012, 19:47

Re: ds18b20

Berichtdoor markuser » 15 feb 2013, 19:53

Hallo,

Komt me bekend voor. Echter de afwijking is wel constant. Het verschil heb ik in de webapp gecompenseerd. Bij mij zit er een afwijking van 1,5 graad in de sensor.
Echter een thermostaat van de CV kun je ook ijken, en kan dus ook afwijken.
Dus welke nu goed is.... Het beste is een geijkte thermometer om alles af te stellen.

Mark
Mvg, Mark

4 Unit's met ethernet. Nodo-Mega V3.7, Product=SWACNC-MEGA-R744
Devices: Diverse Kaku's, DS18b20, DHT11, LCD, WS3500, CNY70, BPW40, LDR, Watersensor, Slimme meter kaifa MA304, RFLink, Raspberry PI, Domoticz
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markuser
 
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Re: ds18b20

Berichtdoor manjh » 16 feb 2013, 09:21

Klopt, uitschieters heb ik ook wel eens gezien. Maar ik heb ook batches gehad die allemaal gelijk waren, op 0.1 graad nauwkeurig.
Het beste is inderdaad om 1 sensor te "ijken" met een betrouwbare thermometer, en die sensor dan apart te houden. Even markeren zodat je hem niet kan verwisselen. Daarna voor nieuwe sensren even je ijksensor ernaast houden...
Hans
manjh
 
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Geregistreerd: 29 aug 2011, 14:39

Re: ds18b20

Berichtdoor manjh » 17 feb 2013, 10:11

Hans
manjh
 
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Geregistreerd: 29 aug 2011, 14:39

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