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Construire une sonde de température radio pour moins de 7€ - merciidleman.over-blog.com

Construire une sonde de température radio pour moins de 7€ - merciidleman.over-blog.com
Le principe L'Arduino Pro Mini (petit carré noir avec tout plein de pattes) va aller interroger toutes les 3 secondes le capteur DS18B20 (plus petit carré noir à trois pattes, en forme de transistor) afin de récupérer la température de la pièce, puis va envoyer, à travers l’émetteur RF 433 mHz (petit circuit à 3 pattes), l’information au Raspberry PI. Le Raspberry PI, qui écoute en permanence les ondes radio à travers son récepteur RF 433 mhz, va détecter le signal, récupérer la température et la donner à une page PHP qui va la stocker dans un petit fichier texte (au format json), accessible depuis l’interface web et depuis Yuri. Sur le serveur web du Rapsberry PI, l’interface va aller récupérer en ajax toutes les 3 secondes la valeur du fichier texte pour chaque sonde radio et l’afficher sur la page. Le matériel 1 Alimentation de portable 1,63€ Des fils de liaisons pour 1,37€ les 40 Soit 11,29€ pour le premier, et 6,32€ pour les Mini Arduino Pro suivants. Programmer la puce Atmega

http://merciidleman.over-blog.com/2014/04/en-construction-construire-une-sonde-de-temperature-radio-pour.html

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