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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);
  }
}
[Get Code]

See also

readJoystickSwitch() Reference Home

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The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.