Arduino - EsploraReadButton

Esplora

readButton()

Description

Reads a button's state and returns if it is HIGH or LOW.

Syntax

Esplora.readButton(button)

Parameters

button: the associated button that you wanto read. Valid argument are:

SWITCH_1 or SWITCH_DOWN

SWITCH_2 or SWITCH_LEFT

SWITCH_3 or SWITCH_UP

SWITCH_4 or SWITCH_RIGHT

JOYSTICK_DOWN = JOYSTICK_BASE

JOYSTICK_LEFT = JOYSTICK_BASE+1

JOYSTICK_UP = JOYSTICK_BASE+2

JOYSTICK_RIGHT = JOYSTICK_BASE+3

Returns

LOW when pressed, HIGH when not pressed.

Example

#include <Esplora.h> void setup ( ) { } void loop ( )
{
int button = Esplora.readButton (SWITCH_DOWN) ; if (button == LOW )
{
Esplora.writeRed ( 255 ) ;
}
else {
Esplora.writeRed ( 0 ) ;
}
}