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Toon onderwerp - 868 MHz ontvangers • nodo-domotica.nl

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868 MHz ontvangers

Hier kan gediscussieerd worden over sensoren, electronica problemen, componenten, etc.

Re: 868 MHz ontvangers

Berichtdoor manjh » 03 sep 2012, 15:24

ga dan all-the-way, en bedenk een geursensor.... :D
Hans
manjh
 
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Geregistreerd: 29 aug 2011, 14:39

Re: 868 MHz ontvangers

Berichtdoor Kaag » 03 sep 2012, 18:43

Ja, die heb ik al! een hele grote NEUS :P

die onvangt alleen geur en verzend alleen op frequenties voor het menselijk oor....
Kaag
 
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Geregistreerd: 25 jul 2012, 21:26

Re: 868 MHz ontvangers

Berichtdoor mvdbro » 13 sep 2012, 19:40

Inmiddels draait een "Hardware Plugin" voor mijn Alecto 868 MHz weerstation. Ik heb een standaard Arduino Uno voorzien van een 868 MHz receiver en de custom 121 Nodo software met userplugin 0.7.3. De meetwaardes van het weerstation gaan via de Uno, via I2C naar de Mega en dan direct naar de Nodo WebApp.

Afronding zou zijn om een printplaatje met alleen een Atmel328 + ontvanger aan te sluiten op de Mega. Dat is voldoende voor een hardware plugin.

De Mega kan nu eventueel terug naar een zeer eenvoudige userplugin die enkel I2C communicatie support en hoef ik het signal tab ook niet meer aan te passen.
mvdbro
 
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Re: 868 MHz ontvangers

Berichtdoor Markie » 17 sep 2012, 18:52

Arduino Ethernet W5100-netwerk shield
Arduino Mega 2560 ATmega2560-16AU
Nodo Ethernetshield
Software Nodo Mega SWACNC-MEGA-R739
4 x Slave Small SWACNC-SMALL-R739
Lichtslave,Weerstationslave,Meterkastslave,ketelslave.
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Markie
 
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Re: 868 MHz ontvangers

Berichtdoor Markie » 20 sep 2012, 22:13

of is het niet mogelijk om grotere afstand te overbruggen over de I2C bus
Arduino Ethernet W5100-netwerk shield
Arduino Mega 2560 ATmega2560-16AU
Nodo Ethernetshield
Software Nodo Mega SWACNC-MEGA-R739
4 x Slave Small SWACNC-SMALL-R739
Lichtslave,Weerstationslave,Meterkastslave,ketelslave.
Gebruikers-avatar
Markie
 
Berichten: 419
Geregistreerd: 11 jan 2012, 11:41

Re: 868 MHz ontvangers

Berichtdoor softwareregi » 20 sep 2012, 23:49

Wat noem je een grote afstand? Vaak heb je een aanpassing nodig met weerstand en C, daarnaast is comm.snelheid van invloed.
Indien je grote afstanden wilt overbruggen kun je gebruik maken van I2C extenders.

Zoek maar eens op intenet op: maximum distance for I2C
Gr. John
Gr. John
softwareregi
 
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Geregistreerd: 29 aug 2011, 14:05

Re: 868 MHz ontvangers

Berichtdoor mvdbro » 21 sep 2012, 06:18

Waarom wil je die Uno verder van de Mega af plaatsen? Bij mij zit een losse Atmel 328 gewoon in dezelfde behuizing als de Mega. Nu nog op een breadbord, maar ik overweeg om deze bovenop de Nodoshield te plaatsen. Omdat de ontvangers niet op dezelfde frequentie werken hebben ze onderling geen last van interferentie.
mvdbro
 
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Re: 868 MHz ontvangers

Berichtdoor Markie » 21 sep 2012, 23:01

Arduino Ethernet W5100-netwerk shield
Arduino Mega 2560 ATmega2560-16AU
Nodo Ethernetshield
Software Nodo Mega SWACNC-MEGA-R739
4 x Slave Small SWACNC-SMALL-R739
Lichtslave,Weerstationslave,Meterkastslave,ketelslave.
Gebruikers-avatar
Markie
 
Berichten: 419
Geregistreerd: 11 jan 2012, 11:41

Re: 868 MHz ontvangers

Berichtdoor anthonyb » 15 jan 2013, 09:57

anthonyb
 
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Geregistreerd: 15 jan 2013, 09:43

Re: 868 MHz ontvangers

Berichtdoor manjh » 08 apr 2013, 08:42

Hans
manjh
 
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