CrcLib: How to access the remote controller buttons

Owned by David Martin (Unlicensed)
Last updated: Nov 13, 2023 by Xavier L'Heureux
2 min read

This page presents how CrcLib functions can use a remote controller buttons and joystick states. It details the different types declared in CrcLib.

Voir la version française de cette page.

Analog

ANALOG

An enum class representing the available analog channels on the remote controller connected via a CrcConnect module. These are different from the 4 Analog inputs (pins) of your board.

The members of the enum, listed below, are to be used in tandem with the ReadAnalogChannel(), MoveTank(), MoveArcade() or MoveHolomonic()function.

Members:

  • JOYSTICK1_X : The horizontal axis of the left stick.

  • JOYSTICK1_Y : The vertical axis of the left stick.

  • JOYSTICK2_X : The horizontal axis of the right stick.

  • JOYSTICK2_Y : The vertical axis of the right stick.

  • GACHETTE_L : The pressure button at the back of the remote controller, left side.

  • GACHETTE_R : The pressure button at the back of the remote controller, right side.

  • NONE : No value. This should not be used and exists mainly for implementation details.

Click here for more details on the joystick mapping, depending on the remote controller used.

In C/C++, a call to a member of an enum class must be preceded by the name of the enum, followed by ::. For example, the following syntax must be used in a function call:

CrcLib::ReadAnalogChannel(ANALOG::JOYSTICK1_X);

Button

BUTTON

An enum class representing the available digital channels on the remote controller connected via a CrcConnect module. These are different from the 12 Digital inputs (pins) of your board.

The members of the enum, listed below, are to be used in tandem with the ReadDigitalChannel() function.

Members:

  • ARROW_RIGHT

  • ARROW_UP

  • ARROW_LEFT

  • ARROW_DOWN

  • COLORS_RIGHT

  • COLORS_UP

  • COLORS_LEFT

  • COLORS_DOWN

  • SELECT

  • START

  • L1

  • R1

  • HATL

  • HATR

  • LOGO

  • NONE : No value. This should not be used and exists mainly for implementation details.

Click here for more details on the button mapping, depending on the remote controller used.

In C/C++, a call to a member of an enum class must be preceded by the name of the enum, followed by ::. For example, the following syntax must be used in a function call:

CrcLib::ReadDigitalChannel(BUTTON::L1)

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