Modifications

== Broches du GPIO ==

== Broches du GPIO ==

Each pin on this header has a unique “GPIO number” distinct from the order of the pins on the header. Buttons and a joystick (each of 4 directions) will connect between any available GPIO pin and a ground (GND) connection.

Chaque broche du connecteur dispose d'un "numéro GPIO" unique qui diffère de l'ordre des broches sur le connecteur. Les boutons et joystick (chacun ayant 4 directions) seront connectés parmi les différentes broches GPIO disponible et la masse (GND).

Most Raspberry Pi boards follow the newer “Revision 2” pin arrangement:

La plupart des cartes Raspberry Pi suivent maintenant l'arrangement des broches de la "Revision 2":

{{ADFImage|Rasp-Retro-Games-Arcade-Control-10.png}}

{{ADFImage|Rasp-Retro-Games-Arcade-Control-10.png}}

If you’re using an early Model B board (easy to spot — there’s no mounting holes), a few of the GPIO pin numbers are different:  

Si vous disposez toujours d'un ancien modèle (prédécesseur de la carte Modèle B) est facile à reconnaitre car elle n'a pas de trou de montage. Dans ce cas le numéro des broches est différent:  

{{ADFImage|Rasp-Retro-Games-Arcade-Control-11.png}}

{{ADFImage|Rasp-Retro-Games-Arcade-Control-11.png}}

Notice that GPIO pins 14 and 15 are marked off-limits. These are set up as a serial port by default. There’s a way to disable this, but it’s somewhat annoying and there are plenty of other pins to work with, much simpler.

Notez que les broches GPIO 14 et 15 sont désignées comme are marked off-limits. These are set up as a serial port by default. There’s a way to disable this, but it’s somewhat annoying and there are plenty of other pins to work with, much simpler.

Revision 2 boards have four extra GPIO pins (28–31) on an adjacent header, but this requires some soldering. If you desperately need the extra inputs, power users can find that information in the [http://elinux.org/RPi_Low-level_peripherals Embedded Linux Wiki].

Revision 2 boards have four extra GPIO pins (28–31) on an adjacent header, but this requires some soldering. If you desperately need the extra inputs, power users can find that information in the [http://elinux.org/RPi_Low-level_peripherals Embedded Linux Wiki].

'''The processor in the Raspberry Pi has the ability to turn on 'internal' pullups so you do not need external pull-up resistors for the buttons or arcade controller'''

'''The processor in the Raspberry Pi has the ability to turn on 'internal' pullups so you do not need external pull-up resistors for the buttons or arcade controller'''

Just as the layout and build technique of the control panel requires creative interpretation, so too will you need to decide on your own wiring methodology. We have some parts that can help. Aside from the aforementioned Perma-Proto board, there are ''quick-connect wires'' that work with the buttons and {{pl|82|assortiment de fil de connexion multifonctionnel}} in various lengths that can be used with a joystick or plug directly into the GPIO pins (without a Perma-Proto board). Options abound! You’ll likely need some combination of these, and may need to solder some connections.  

Just as the layout and build technique of the control panel requires creative interpretation, so too will you need to decide on your own wiring methodology. We have some parts that can help. Aside from the aforementioned Perma-Proto board, there are ''quick-connect wires'' that work with the buttons and {{pl|82|assortiment de fil de connexion multifonctionnel}} in various lengths that can be used with a joystick or plug directly into the GPIO pins (without a Perma-Proto board). Options abound! You’ll likely need some combination of these, and may need to solder some connections.

== Raccordement ==

== Raccordement ==