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January 29, 2020 03:01
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// Goal: https://github.com/karlin/One_Button_Alarmduino/blob/master/One_Button_Alarmduino.ino | |
// Ref: https://xstate.js.org/docs/guides/activities.html | |
// Visualizer: https://xstate.js.org/viz/?gist=60570390017425aa339f8122dac22267 | |
function createBeepingActivity(context, activity) { | |
// Start the beeping activity | |
const interval = setInterval(() => { | |
console.log('BEEP!'); | |
}, context.intervalSeconds*1000); | |
// Return a function that stops the beeping activity | |
return () => clearInterval(interval); | |
} | |
const beepingStates = { | |
initial: 'on', | |
states: { | |
on: { | |
on: { | |
ONE_SEC: 'off', | |
actions: assign({ | |
buttonHeldSeconds: (context, event) => | |
context.buttonHeldSeconds + 1 | |
}) | |
} | |
}, | |
off: { | |
on: { | |
ONE_SEC: 'on', | |
actions: assign({ | |
buttonHeldSeconds: (context, event) => | |
context.buttonHeldSeconds + 1 | |
}) | |
} | |
} | |
} | |
}; | |
const alarmduino = Machine( | |
{ | |
id: 'alarm', | |
initial: 'clock', | |
context: { | |
buttonPressed: false, | |
snoozing: false, | |
alarmOn: false, | |
blinkColon: false, | |
// int alarmTime: 641; | |
snoozeDelay: 7, | |
buttonHeldSeconds: 0, | |
pressToDisableAlarmSeconds: 5, | |
snoozeSeconds: () => {context.snoozeDelay*60}, | |
intervalSeconds: 1 // beep every second | |
}, | |
states: { | |
clock: { | |
on: { | |
"ALARM TIME": { | |
target: 'inAlarm' | |
} | |
} | |
}, | |
inAlarm: { | |
activities: ['beeping'], | |
on: { | |
"PUSH BUTTON": { | |
target: 'buttonDown', | |
actions: assign({ | |
buttonPressed: (context, event) => true | |
}) | |
} | |
}, | |
...beepingStates | |
}, | |
buttonDown: { | |
on: { | |
"RELEASE BUTTON": { | |
target: 'clock', | |
actions: assign({ | |
buttonPressed: (context, event) => { | |
if (context.buttonHeldSeconds > context.pressToDisableAlarmSeconds) { | |
return false; | |
} | |
} | |
}) | |
} | |
} | |
} | |
} | |
}, | |
{ | |
activities: { | |
beeping: createBeepingActivity | |
} | |
} | |
); | |
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