{"id":336,"date":"2021-02-08T11:55:48","date_gmt":"2021-02-08T10:55:48","guid":{"rendered":"http:\/\/anthony.lepors.fr\/raspi-thermo-cam\/?page_id=336"},"modified":"2022-02-08T19:13:43","modified_gmt":"2022-02-08T18:13:43","slug":"purethermal-2","status":"publish","type":"page","link":"https:\/\/anthony.lepors.fr\/raspi-thermo-cam\/purethermal-2\/","title":{"rendered":"PureThermal-2"},"content":{"rendered":"

[et_pb_section fb_built=\u00a0\u00bb1″ _builder_version=\u00a0\u00bb4.8.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb theme_builder_area=\u00a0\u00bbpost_content\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.8.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb theme_builder_area=\u00a0\u00bbpost_content\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.8.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb theme_builder_area=\u00a0\u00bbpost_content\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.8.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb theme_builder_area=\u00a0\u00bbpost_content\u00a0\u00bb]<\/p>\n

La carte d’interfa\u00e7age USB PureThermal-2<\/h1>\n

Le PureThermal-2 est une carte d’interfa\u00e7age USB con\u00e7ue par GroupGets pour s’adapter aux modules FLIR Lepton 2 et 3. C’est en reprenant les principes de la carte d’interfa\u00e7age GPIO d\u00e9velopp\u00e9e par la marque FLIR Lepton (voir ici<\/a>) que cette carte se pr\u00e9sente sous la forme d’une connexion USB. Il faut pour cela se munir d’un c\u00e2ble micro USB.<\/p>\n

[\/et_pb_text][et_pb_image src=\u00a0\u00bbhttps:\/\/anthony.lepors.fr\/raspi-thermo-cam\/wp-content\/uploads\/2021\/02\/purethermal-2.jpeg\u00a0\u00bb alt=\u00a0\u00bbCarte d’interfa\u00e7age USB PureThermal-2″ title_text=\u00a0\u00bbPureThermal-2″ show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.8.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb40%\u00a0\u00bb custom_margin=\u00a0\u00bb-30px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb theme_builder_area=\u00a0\u00bbpost_content\u00a0\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00a0\u00bb4.14.7″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-35px||||false|false\u00a0\u00bb hover_enabled=\u00a0\u00bb0″ locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb theme_builder_area=\u00a0\u00bbpost_content\u00a0\u00bb sticky_enabled=\u00a0\u00bb0″]<\/p>\n

Caract\u00e9ristiques de la carte PureThermal-2<\/h2>\n

Les principales caract\u00e9ristiques de la carte d’interfa\u00e7age USB sont les suivantes :<\/p>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/tr>\n
Couleur vid\u00e9o<\/td>\n9 Hz sur USB\u00a0 en utilisant la classe USB UVC<\/td>\n<\/tr>\n
Microprocesseur<\/td>\nARM STM32F412. Peut ex\u00e9cuter un traitement d’image embarqu\u00e9.<\/td>\n<\/tr>\n
Mise \u00e0 niveau<\/td>\nMicrologiciel du p\u00e9riph\u00e9rique (DFU) du MCU STM32 ARM via USB<\/td>\n<\/tr>\n
Alimentation<\/td>\nUSB<\/td>\n<\/tr>\n
Extensions<\/td>\nUART, I2C et GPIO via des trous standards de 0,25 cm<\/td>\n<\/tr>\n
Compatibilit\u00e9<\/td>\nTous les modules 2.x et 3.x de Lepton actuels<\/td>\n<\/tr>\n
Dimensions<\/td>\n30 mm * 22 mm<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Utilisation de la carte PureThermal-2<\/h2>\n

Le c\u00f4t\u00e9 tr\u00e8s pratique de l’interfa\u00e7age USB, c’est la possibilit\u00e9 d’adapter l’utilisation du module de cam\u00e9ra thermique \u00e0 de nombreux syst\u00e8mes. De plus, il est tr\u00e8s pratique d’utiliser cette carte puisqu’il suffit de brancher le module FLIR Lepton sur l’emplacement pr\u00e9vu \u00e0 cet effet puis brancher la carte d’interfa\u00e7age au port USB du syst\u00e8me, par exemple un PC Windows ou un Raspberry.<\/p>\n

Dans un premier temps, sur un Raspberry, nous avons utilis\u00e9 cette carte en installant 2 logiciels qui fonctionnent tous les 2 tr\u00e8s bien. Ce sont GetThermal<\/a> et ParabilisThermal<\/a>. Le second offre plus de possibilit\u00e9s avec l’enregistrement de vid\u00e9os et leur relecture avec traitement.<\/p>\n

Ensuite, c’\u00e9tait pratique pour nous de la brancher sur un PC Windows qui \u00e9mulait un Raspberry en virtuel. Aussi, il existe le logiciel FLIR Lepton User App qui permet de r\u00e9cup\u00e9rer le flux vid\u00e9o thermique simplement en branchant la cam\u00e9ra et en installant le logiciel.<\/p>\n

Cependant, l’utilisation d’un p\u00e9riph\u00e9rique implique l’installation de pilotes et de drivers pour reconna\u00eetre le dispositif. Nous avons rencontr\u00e9 quelques probl\u00e8mes avec la compilation des LibUSB et LibUVC sur Windows (voir page suivante<\/a>), le p\u00e9riph\u00e9rique \u00e9tait reconnu mais non support\u00e9. Bien que cette carte soit pratique, nous pr\u00e9f\u00e9rons donc finalement l’utilisation de la carte d’interfa\u00e7age GPIO qui permet un meilleur contr\u00f4le de nos actions.<\/p>\n

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Caract\u00e9ristiques de la carte d’interfa\u00e7age USB PureThermal-2 de GroupGets. Elle permet de brancher un module FLIR Lepton en USB.<\/p>\n","protected":false},"author":1,"featured_media":337,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-336","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nPureThermal-2 | Raspi Thermo Cam - Projet Cam\u00e9ra Thermique<\/title>\n<meta name=\"description\" content=\"Caract\u00e9ristiques de la carte d'interfa\u00e7age USB PureThermal-2 de GroupGets. 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