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nodo-domotica.nl • Toon onderwerp - temperatuursensor LM35 - Afdrukweergave
nodo-domotica.nl
http://www.nodo-domotica.nl/forum/

temperatuursensor LM35
http://www.nodo-domotica.nl/forum/viewtopic.php?f=32&t=525
« Vorige  Pagina 3 van 4  Volgende »
Auteur:  hadriaanse [ 20 mei 2012, 22:22 ]
Titel:  Re: temperatuursensor LM35

Volgens mij moeten de regels zijn:

EventlistWrite; Boot;Timer 10,0
EventlistWrite; Timer 10,0;sendstatus wiredanalog 1
EventlistWrite; Timer 10,0;TimerSetMin 10,10

Bij mij werkt dat prima met een ldr. Dus "sendstatus" moet er nog bij.

Succes.
Auteur:  remkohuitema2000 [ 21 mei 2012, 09:04 ]
Titel:  Re: temperatuursensor LM35

Auteur:  bryan241 [ 21 mei 2012, 10:06 ]
Titel:  Re: temperatuursensor LM35

EventlistWrite; Timer 10,0; VariableWiredAnalog 2,8

Je zet met deze regel variable 2 met de waarde van poort 8...

Als je dit verandert in :
EventlistWrite; Timer 10,0; VariableWiredAnalog 2,2

dan zet je variable 2 met de waarde van wiredanalog poort 2.
Auteur:  remkohuitema2000 [ 21 mei 2012, 12:51 ]
Titel:  Re: temperatuursensor LM35

Super tip. Nu krijg ik inderdaad de waarde door die ik ook zie middels de nodo status. Maar die blijft op de 54, zoveel hangen. Is dus niet echt de goede temperatuur. Hoe moet ik die goed zetten?
Auteur:  wino [ 21 mei 2012, 13:47 ]
Titel:  Re: temperatuursensor LM35

Hallo Remko

Je zal de lm35 nog moeten calibreren om deze de juiste temperartuur te laten weergeven.
E.e.a. staat beschreven in de wiki

http://www.w-a.nl/nodowiki/index.php/WiredCalibrate

Groeten Wieb
Auteur:  remkohuitema2000 [ 02 jun 2012, 12:53 ]
Titel:  Re: temperatuursensor LM35

Ik heb de lm35 gecalibreerd conform wiki maar helaas geen succes. Temp verschil was bijna 50 graden dus daar kan het niet aan liggen lijkt mij. Ik had:
-de massa aan de GND van de nodo gehangen (rechterpootje kijkend op de platte kant van de lm35 met de pennen naar mij toe)
-de out aan analoge poort 2 (middelste poot)
-de adj aan 5 volt.

Dit gaf een vast getal als resultaat en mijn nodo begonte rellen, telkens wired2 aan en dan weer uit.
Na een tip op het forum heb ik het anders aangesloten:
-de massa aan de GND van de nodo gehangen
-de out aan analoge poort 2 en gelijkertijd via weerstand 1,8K aan de +5V van de nodo
-de adj niet aangesloten

Helaas gaf dit hetzelfde resultaat.

Begin langzamerhand moedeloos te worden. Is deze sensor wel geschikt? Ligt het aan de betasoftware? Of een (soldeer)defect in mijn nodo? Wie weet raad? En wat is de juiste aansluitmethode?
Auteur:  remkohuitema2000 [ 04 jun 2012, 07:56 ]
Titel:  Re: temperatuursensor LM35

niemand?
Auteur:  bryan241 [ 11 jun 2012, 21:28 ]
Titel:  Re: temperatuursensor LM35

Hoi Remko,

Ik heb het ook even getest en krijg hetzelfde fenomeen als jij hebt.

Standaard staat er een pullup weerstand van 20k aan op de analoge poort.
Als je deze uitzet zal het beter werken denk ik (bij mij in ieder geval wel.)

wiredpullup 2,off

Probeer het eens.

Groeten,

Bryan
Auteur:  proza [ 17 jun 2012, 01:05 ]
Titel:  Re: temperatuursensor LM35

Auteur:  proza [ 17 jun 2012, 20:57 ]
Titel:  Re: temperatuursensor LM35

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