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LoLiGrUB ASBL • Consulter le sujet - [résolu] raspberry pi + clavier USB
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[résolu] raspberry pi + clavier USB

Message Publié : 04 Jan 2013 10:09
par francois
je rencontre un problème régulier avec le boitier Raspberry Pi par rapport au fonctionnement du clavier USB, j'utilise Raspbmc ou Raspbian mais le soucis reste le même lorsque je connecte un clavier USB (j'en ai testé 2) ça ne fonctionne pas à tous les coups voir ça fonctionne au début (premier boot) mais pas ensuite.

Avez-vous des soucis similaires ?

Re: raspberry pi + clavier USB

Message Publié : 04 Jan 2013 11:32
par bipbip
Je n'en ai pas pour essayer mais j'ai trouvé ça : http://elinux.org/RPi_VerifiedPeripherals#USB_Keyboards
Ca peut toujours aider :)

Bip

Re: raspberry pi + clavier USB

Message Publié : 10 Jan 2013 22:33
par francois
En lisant ton lien ça m'a fait tilter sur un point et là je viens de faire différents test ... en résumé toutes les prises d'alimentations USB (comme celles pour charger un GSM ou autres) ne sont pas toutes de la même puissance et visiblement lorsque c'est légèrement trop faible alors il faut soit en prendre une autre soit passer via un hub usb alimenté ...

moi mes alimentations USB sont de 5V ou 5.15V

Re: [résolu] raspberry pi + clavier USB

Message Publié : 10 Jan 2013 23:05
par tbruyere
Bonjour,

Les alimentations que j'ai utilisé pour mes test sont en output 5VDC - 1000mA
Je n'ai pas eu de problème avec les claviers USB mais j'ai utiliser des claviers simple (pas multimédia avec LED supplémentaire)

Si tu as besoin j'ai encore des alimentation USB de stock.

Re: [résolu] raspberry pi + clavier USB

Message Publié : 10 Jan 2013 23:53
par didiervillers
Les alimentations USB et leur isolation réciproque me semblent assez mystérieuses !

Figurez-vous que j'ai réussi à booter un Raspberry Pi par sa simple connexion à un hub USB alimenté (5V, 3.5 A, 10 ports USB) !!
Oui, vous lisez bien, je n'ai pas eu besoin de connecter une alim par l'entrée micr-USB normalement prévue à cet effet.

Re: [résolu] raspberry pi + clavier USB

Message Publié : 11 Jan 2013 10:04
par tbruyere

Re: [résolu] raspberry pi + clavier USB

Message Publié : 11 Jan 2013 10:17
par tbruyere
Ou alors on passe au panneau solaire ;)