LED Eye Mask "Hitomi-chan"

About: We are Family. Our hobby is D.I.Y. and to Live.

I made a mask for Halloween. This mask has LED's eye and its mouth flashes red. This mask drops children there in fear.

Parts

  • Horror Mask
  • Tape LED Neopixel
  • Arduino Pro Mini 5V 16MHz

  • Electret Microphone Board

  • Red LED

Step 1: Step1: Paint the Mask Black

I bought a mask and painted black with a spray.

Step 2: Step2: LED Tape Processing

In order to paint the LED tape black, attach a masking tape to the light emitting part. I paint the LED black with a spray.

Attach the LED tape to the mask and wire it.

There are 68 LED cells. It is connected by one signal line.

Step 3: Step3: Microphone Attachment

Attach the Electret Microphone Board and two red LEDs to the mouth of the back of the mask.

The red LEDs glow in response to the voice.

Step 4: Step4: Overall Structure

Microcontroller (Arduino Pro Mini 5V 16MHz) controls LED tape, Electret Microphone Board, red LED.

Step 5: Step5: Code

LED Eye moves to the right or left and blinks randomly. The Electret Microphone Board detects the voice and lights the red LED.

#include <Adafruit_Neopixel.h>

const int analogInPin = A0;
const int ledPin = 12;

int sensorValue = 0;
int sensorTh = 700;
int avTime = 10;

#define PIN A3
Adafruit_NeoPixel led = Adafruit_NeoPixel(68, PIN, NEO_GRBW + NEO_KHZ800);

int blackNum = 24;
int pupilNum = 12;

uint32_t color;
int brightness = 20;
byte eyeColor;

int LR =7;

//Black eye L&R animation
int blackLED[15][24] = {{12,32,35,55,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        {12,13,31,36,54,55,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        {11,13,14,30,37,53,54,56,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        {10,11,14,15,29,38,52,53,56,57,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        { 9,10,11,12,15,16,28,33,34,39,51,52,55,56,57,58,68,68,68,68,68,68,68,68},
                        { 0, 8, 9,10,11,12,13,16,17,27,32,35,40,50,51,54,55,56,57,58,59,67,68,68},
                        { 0, 1, 7, 8, 9,10,13,14,17,18,26,31,36,41,49,50,53,54,57,58,59,60,66,67},
                        { 1, 2, 6, 7, 8, 9,14,15,18,19,25,30,37,42,48,49,52,53,58,59,60,61,65,66},
                        { 2, 3, 5, 6, 7, 8,15,16,19,20,24,29,38,43,47,48,51,52,59,60,61,62,64,65},
                        { 3, 4, 5, 6, 7,16,17,20,21,23,28,39,44,46,47,50,51,60,61,62,63,64,68,68},
                        { 4, 5, 6,17,18,21,22,27,40,45,46,49,50,61,62,63,68,68,68,68,68,68,68,68},
                       { 4, 5,18,19,26,41,48,49,62,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        { 4,19,20,25,42,47,48,63,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        {20,21,24,43,46,47,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68},
                        {21,23,44,46,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68,68}};

//pupil L&R animation
int pupilLED[15][12] = {{33,34,68,68,68,68,68,68,68,68,68,68},
                        {32,33,34,35,68,68,68,68,68,68,68,68},
                        {12,31,32,33,34,35,36,55,68,68,68,68},
                        {12,13,30,31,32,33,34,35,36,37,54,55},
                        {13,14,29,30,31,32,35,36,37,38,53,54},
                        {14,15,28,29,30,31,36,37,38,39,52,53},
                        {15,16,27,28,29,30,37,38,39,40,51,52},
                        {16,17,26,27,28,29,38,39,40,41,50,51},
                        {17,18,25,26,27,28,39,40,41,42,49,50},
                        {18,19,24,25,26,27,40,41,42,43,48,49},
                        {19,20,23,24,25,26,41,42,43,44,47,48},
                        {20,21,22,23,24,25,42,43,44,45,46,47},
                        {21,22,23,24,43,44,45,46,68,68,68,68},
                        {22,23,44,45,68,68,68,68,68,68,68,68},
                        {22,45,68,68,68,68,68,68,68,68,68,68}};

//Blink animation
int eyelid = 0;
int eyelidNum[8] = {0,4,8,16,24,34,44,56};
int eyelidLED[56] = {64,65,66,67,58,59,60,61,56,57,62,63,49,50,51,52,47,48,53,54,38,39,40,41,46,55,36,37,42,43,26,27,28,29,35,44,24,25,30,31,15,16,17,18,34,45,23,32,13,14,19,20,6,7,8,9};

void blink(int eyelid, int LR) {
  if (eyelid != 8){
    //White eye
    for(uint16_t i=0; i<led.numpixels(); i++) {
      led.setPixelColor(i, led.Color(0, 0, 0, 46));
      led.setPixelColor(11, led.Color(26, 26, 26));
    }

    //Black eye
    for(uint16_t i=0; i<blacknum; i++){
      led.setPixelColor(blackLED[LR][i], color);
    }

    //pupil
    for(uint16_t i=0; i<pupilnum; i++){
      led.setPixelColor(pupilLED[LR][i], led.Color(0, 0, 66));
    }

    //eyelid
    for(int i=0; i < eyelidNum[eyelid]; i++) {
      led.setPixelColor(eyelidLED[i], 0);
    }
  } else if (eyelid == 8){
    led.clear();
  }
  led.show();
}

void setup() {
  Serial.begin(115200);

  pinMode(ledPin, OUTPUT);

  led.begin();
  led.setBrightness(brightness); // Initial Brightness 40
  led.show(); // Initialize all pixels to 'off'

  color = led.Color(0, 177, 55); //pupil color

  blink(eyelid, LR);
}

void loop() {
  //mic input LED
  for(int i = 0; i < avTime; i++){
    sensorValue += analogRead(analogInPin);
  }

  sensorValue = sensorValue / avTime;
  Serial.println(sensorValue);

  if(sensorValue > sensorTh){
    digitalWrite(ledPin, HIGH);
  }else{
    digitalWrite(ledPin, LOW);
  }

  int eyeMotion = random(0, 1200);

  switch (eyeMotion) {
    //Right
    case 10: 
      for(int i = LR; i < 12; i++){
        if(sensorValue > sensorTh) break;
        blink(0, i);
        delay(random(10, 100));
        LR = i;
      }

      if(sensorValue > sensorTh) break;
      delay(random(100, 700));

      for(int i=LR; i>=7; i--){
        if(sensorValue > sensorTh) break;
        blink(0, i);
        delay(random(10, 100));
        LR = i;
      }
      break;

    //Left
    case 123: 
      for(int i=LR; i>2; i--){
        if(sensorValue > sensorTh) break;
        blink(0, i);
        delay(random(10, 100));
        LR = i;
      }

      if(sensorValue > sensorTh) break;
      delay(random(100, 700));

      for(int i=LR; i<=7; i++){
        if(sensorValue > sensorTh) break;
        blink(0, i);
        delay(random(10, 100));
        LR = i;
      }
      break;

    //Blink
    case 32: 
    case 300:
      for(int i = 1; i < 9; i++){
        if(sensorValue > sensorTh) break;
        blink(i, LR);
        delay(random(10, 30));
      }

      if(sensorValue > sensorTh) break;
      delay(random(10, 300));

      for(int i = 8; i > 0; i--){
        if(sensorValue > sensorTh) break;
        blink(i, LR);
        delay(random(10, 30));
      }
      break;

    default:
      blink(0, 7);
  }

  sensorValue = 0;
}

Step 6: Step6: Operation

The LED eye move, the mouth reacts to the voice and it glows red.

I can not wait for Halloween!

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    Discussions

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    seamster

    2 months ago

    That would scare the heebie-jeebies out of me. Nicely done! : )