03/10/2020 - Dekloo.net

CurrentCost et python sur rapsberry

03/10/202006/02/2021 yann

Ce week-end mon « nas » est mort. Il faut recréer et moderniser la mesure en temps réel de la consommation énergétique de toute la maison. J’ai (toujours) une raspberry sus la main… c’est parti ! Dans cet article, je vais présenter comment récupérer les données xml issues d’un boîtier currentcost. Installation Raspberry Pi OS (previously called Raspbian) tout ce passe ici : https://www.raspberrypi.org/downloads/raspberry-pi-os/ installation python pour prise en charge usb pl2303 du currentcost sudo apt-get install python-serial Lecture trame xml usb pl2303 Créer un programme python : currentcost.py import serial cc128…

Raspberry déconnexion intempestive de l’USB

03/10/202003/10/2020 yann

J’ai depuis peu une perte de connexion usb sur la raspberry qui héberge mon domoticz. L’erreur qui s’affiche est : Oct 3 10:42:14 raspberrypi kernel: [ 420.494962] ftdi_sio ttyUSB0: usb_serial_generic_read_bulk_callback – urb stopped: -32Oct 3 10:42:14 raspberrypi kernel: [ 420.495074] ftdi_sio ttyUSB0: usb_serial_generic_read_bulk_callback – urb stopped: -32 J’ai lu qu’on pouvait changer le câble usb… mais déjà fait plusieurs fois…J’ai lu qu’on pouvait aussi ralentir le débit de usb, pour le ramener à une vitesse de l’USB1 : Tout se configure dans la ligne de commande qui est envoyé au…

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