Voir la source de Mini station météo (qualité de l'air)

{{Tuto Details
|Licences=Attribution (CC-BY)
|Description=Création d'une station météo capable d'analyser la qualité de l'air
|Disciplines scientifiques=Arduino, Computing, Electricity, Physics
|Difficulty=Technical
|Duration=4
|Duration-type=hour(s)
|Tags=capteurs, météo, météorologie, température, Air, humidité
}}
{{Introduction
|Introduction=Le but de ce tutoriel est d'assembler une station météo équipée pour afficher la température, l'humidité et la concentration en gaz nocifs.

Cette station se veut simple d'utilisation et réalisable à bas coût
}}
{{Materials
|ItemList={{ItemList
|Item=Breadboard
}}{{ItemList
|Item=Carte arduino micro-controleur
}}{{ItemList
|Item=Logiciel Arduino
}}{{ItemList
|Item=Fil électrique
}}{{ItemList
|Item=Câble USB - micro-USB
}}{{ItemList
|Item=Batterie 18650
}}{{ItemList
|Item=Capteur de température
}}{{ItemList}}
}}
{{Tuto Step
|Step_Title=Placer la carte sur la Breadboard
|Step_Content=Après avoir soudé la carte à une embase à broches, la placer sur la Breadboard.
|Step_Picture_00=Mini_station_m_t_o__qualit__de_l_air__broche.jpg
|Step_Picture_01=Mini_station_m_t_o_qualit_de_l_air_IMG_20191205_144405.jpg
}}
{{Tuto Step
|Step_Title=Connecter les capteurs à la carte
|Step_Content=Une fois la carte placée sur la Breadboard, les 2 capteurs se connectent de la façon suivante (voir schéma).


<br />
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{{Tuto Step
|Step_Title=Téléverser le code de la station météo
|Step_Content=Connecter la carte à l'ordinateur en utilisant un câble USB / micro USB.


Une fois cela fait, ouvrir le logiciel Arduino et télécharger la bibliothèque correspondant au capteur DHT 22 et compatible avec la carte Heltech : DHTesp.


Une fois cela fait, utiliser le code ci-dessus qui permet de récupérer les données envoyées par les capteurs et de les afficher sur l'écran de la carte.


Pour une utilisation plus complète de la carte Heltech, se reporter au schéma suivant qui explique plus en détails le rôle des différents PINS :

https://user-images.githubusercontent.com/3751318/37211768-50f5be2c-23ad-11e8-9385-416477cd0312.png
|Step_Picture_00=Mini_station_m_t_o__qualit__de_l_air__IMG_20191205_144009.jpg
|Step_Picture_01=Mini_station_m_t_o__qualit__de_l_air__37211768-50f5be2c-23ad-11e8-9385-416477cd0312.png
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}}
{{Tuto Step
|Step_Title=Préparer l'alimentation de la station météo
|Step_Content=La station fonctionne au moyen d'une batterie 18650 que l'on installe sur un support.


Connecter la sortie 5 Volts de ce support à la borne 5V de la carte Heltech sur la Breadboard.


Remarque : on peut également utiliser d'autres batteries
|Step_Picture_00=Mini_station_m_t_o__qualit__de_l_air__IMG_20191205_093858.jpg
|Step_Picture_01=Mini_station_m_t_o__qualit__de_l_air__IMG_20191205_151722.jpg
|Step_Picture_02=Mini_station_m_t_o__qualit__de_l_air__IMG_20191205_152000.jpg
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}}
{{Tuto Step
|Step_Title=Construire le boîtier de la station météo
|Step_Content=Le plus simple est d'opter pour une boîte en carton parallélépipédique.


Avec le matériel décrit sur cette page, les dimensions étaient celles décrites sur la photo du patron.
}}
{{Notes}}
{{Tuto Status
|Complete=Draft
}}