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README and comments updated.

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This commit is contained in:
JChristensen
2018-05-11 07:23:18 -04:00
parent abee83bbba
commit 268004a2f4
7 changed files with 124 additions and 65 deletions
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16
examples/LongPress/LongPress.ino
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@@ -32,7 +32,7 @@ void setup()
// sequence of states, i.e. ONOFF --> TO_BLINK --> BLINK --> TO_ONOFF --> ONOFF
// note that while the user perceives two "modes", i.e. ON/OFF mode and rapid blink mode,
// two extra states are needed in the state machine to transition between these modes.
enum states_t {ONOFF, TO_BLINK, BLINK, TO_ONOFF};
enum states_t {ONOFF, TO_BLINK, BLINK, TO_ONOFF};
bool ledState; // current LED status
unsigned long ms; // current time from millis()
@@ -43,18 +43,18 @@ void loop()
static states_t STATE; // current state machine state
ms = millis(); // record the current time
myBtn.read(); // read the button
switch (STATE)
{
// this state watches for short and long presses, switches the LED for
// short presses, and moves to the TO_BLINK state for long presses.
case ONOFF:
case ONOFF:
if (myBtn.wasReleased())
switchLED();
else if (myBtn.pressedFor(LONG_PRESS))
STATE = TO_BLINK;
break;
// this is a transition state where we start the fast blink as feedback to the user,
// but we also need to wait for the user to release the button, i.e. end the
// long press, before moving to the BLINK state.
@@ -64,7 +64,7 @@ void loop()
else
fastBlink();
break;
// the fast-blink state. Watch for another long press which will cause us to
// turn the LED off (as feedback to the user) and move to the TO_ONOFF state.
case BLINK:
@@ -77,7 +77,7 @@ void loop()
else
fastBlink();
break;
// this is a transition state where we just wait for the user to release the button
// before moving back to the ONOFF state.
case TO_ONOFF:
@@ -87,7 +87,7 @@ void loop()
}
}
// reverse the current LED state. if it's on, turn it off. If it's off, turn it on.
// reverse the current LED state. if it's on, turn it off. if it's off, turn it on.
void switchLED()
{
msLast = ms; // record the last switch time
@@ -95,7 +95,7 @@ void switchLED()
digitalWrite(LED_PIN, ledState);
}
// switch the LED on and off every BLINK_INETERVAL milliseconds.
// switch the LED on and off every BLINK_INTERVAL milliseconds.
void fastBlink()
{
if (ms - msLast >= BLINK_INTERVAL)