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Toon onderwerp - Tiny ADC • nodo-domotica.nl

nodo-domotica.nl

Tiny ADC

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

Tiny ADC

Berichtdoor mvdbro » 29 maart 2013, 09:30

Na een tijdje te hebben zitten prutsen met maatwerk Nodo code (analoge pulsteller) heb ik besloten om het anders aan te pakken. De CNY70 op mijn gasmeter geeft n.l. een signaal dat niet direct digitaal kan worden verwerkt. Dus nu besloten om met behulp van een ATTiny een dedicated ADC module te maken die gewoon tussen de sensor en meterkastslave wordt geplaatst:
AfbeeldingAfbeelding

De benodigde code voor de Tiny staat hier:

(wel allemaal experimenteel spul zonder formele support, dus weet waar je aan begint...)

De (vernieuwde) meterkastslave in aktie:
Afbeelding
Zoals je ziet sluit ik al mijn externe sensoren aan via standaard 3.5" stereo jack connectoren. Is echt aan te raden want de benodigde kabels zijn standaard en overal te koop voor weinig.
De tip van de plug levert 5 volt om eventuele sensoren te voeden, De middelste pin draagt het analoge of digitale signaal.

En de webapp resultaten:
Afbeelding

gr
Martinus
mvdbro
 
Berichten: 1092
Geregistreerd: 21 okt 2011, 12:06

Re: Tiny ADC

Berichtdoor Patrickl » 29 maart 2013, 16:35

Heel mooi gedaan allemaal zeg.
Patrickl
 
Berichten: 27
Geregistreerd: 13 feb 2013, 11:42


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