Method begin

src/JC_Button.cpp:9–17

initialize a Button object

// initialize a Button object
void Button::begin()
{
    pinMode(m_pin, m_puEnable ? INPUT_PULLUP : INPUT);
    m_state = static_cast<bool>(digitalRead(m_pin)) ^ m_invert;
    m_time = millis();
    m_lastState = m_state;
    m_changed = false;
    m_lastChange = m_time;
}

// returns the state of the button, true if pressed, false if released.
// does debouncing, captures and maintains times, previous state, etc.