NightLocker

NightLocker_ATTINY85.c

#include "DigiKeyboard.h"
#include "Arduino.h"

#include <FastLED.h>

#define NUM_LEDS 12
#define DATA_PIN PIN_B0
#define BUTTON_PIN PIN_B2

CRGB leds[NUM_LEDS];

void static OFF() {
  for (int i=0; i < NUM_LEDS; i++) leds[i] = CRGB::Black;
}

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(BUTTON_PIN, INPUT);
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);  
  OFF();
  FastLED.show();
}

void static KITT_LOOP() {
  static uint8_t dir = +1;
  static int8_t currLed = 0;
  OFF();
  leds[currLed] = 0x330000;
  leds[currLed-dir] = 0x050000;
  currLed += dir;
  if (currLed == NUM_LEDS) {
    dir = -1;
    currLed = NUM_LEDS -2;
  }
  if (currLed == -1) {
    currLed = 1;
    dir = 1;
  }
  leds[currLed] = CRGB::Red;
  FastLED.show();
  delay(66);
  if (!currLed) {
    OFF();
    FastLED.show();
    delay(1666);
  }
}

static void PRESENCE_LOOP() {
  static uint8_t currLed = 0;
  OFF();
  leds[currLed++] = CRGB::Green;
  currLed %= NUM_LEDS;
  FastLED.show();
  delay(1000);
}

uint32_t timestamp = UINT32_MAX;

void loop() {
  DigiKeyboard.update();
  DigiKeyboard.sendKeyStroke(0);
  static uint32_t timestamp = UINT32_MAX;
  if (millis() > timestamp) {
    timestamp = UINT32_MAX;
    DigiKeyboard.sendKeyStroke(KEY_Q, MOD_GUI_LEFT | MOD_CONTROL_LEFT); //run
    delay(10);
  }
  
  if (digitalRead(BUTTON_PIN)) {
    timestamp = UINT32_MAX;
    PRESENCE_LOOP();
  } else {
    if (timestamp == UINT32_MAX) {
      timestamp = millis() + 2000; // two seconds.
    }
    KITT_LOOP();
  }
}