Chute de tension aux pin qd demarrage moteurs

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hello tout le monde,

le contexte: un arduino uno + 1 moteur shield + 2 petits moteurs + un ping + alimentation par vin en 9v ( = robot detecteur d'obstacles ;-) )

mon problème se situe au niveau de la tension dans les pins: dès que j'allume mes moteurs, la tension aux bornes des pins baisse et mon ping du coup me donne une distance tronquée. bilan, des q mon robot démarre, il déjà l'impression d'etre dans le mur...

une fois que les moteurs sont lancés, là, pas de soucis tout se déroule normalement, c'est juste à l'allumage.

avez-vous une idée/solution pour que mon robot est l'air moins stupide....?

merci beaucoup !!!

des infos sur les moteurs et sur la source de courant seraient utiles pour pouvoir t'aider.
je crains le pire !!
jacques


Arduino Forum > International > Français (Moderators: jfs, Snootlab) > Chute de tension aux pin qd demarrage moteurs


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