Modifications

La sortie 5 V du circuit de sélection d'alimentation est utilisé pour alimenter le microcontrôleur ATmega32U4 de la carte de contrôle, la logique du contrôleur moteur DRV8838 motor drivers et les encodeurs; il peut également alimenter un Raspberry-Pi connecté sur la carte.

La sortie 5 V du circuit de sélection d'alimentation est utilisé pour alimenter le microcontrôleur ATmega32U4 de la carte de contrôle, la logique du contrôleur moteur DRV8838 motor drivers et les encodeurs; il peut également alimenter un Raspberry-Pi connecté sur la carte.

== Raspberry Pi power ==

== Alimentation Raspberry Pi ==

 

By default, the control board will provide power from its 5V line to an attached Raspberry Pi. In this situation, we recommend switching on the power circuit so that the Raspberry Pi receives power from the batteries through the control board’s on-board switching regulator. Alternatively, you can use a USB wall power adapter to supply power through the control board’s USB connector, although we have sometimes observed AVR brown-out resets occurring when a board powers the Raspberry Pi this way. A typical computer USB port might not be able to supply enough current to properly power the Romi 23U4 Control Board and an attached Raspberry Pi.

By default, the control board will provide power from its 5V line to an attached Raspberry Pi. In this situation, we recommend switching on the power circuit so that the Raspberry Pi receives power from the batteries through the control board’s on-board switching regulator. Alternatively, you can use a USB wall power adapter to supply power through the control board’s USB connector, although we have sometimes observed AVR brown-out resets occurring when a board powers the Raspberry Pi this way. A typical computer USB port might not be able to supply enough current to properly power the Romi 23U4 Control Board and an attached Raspberry Pi.