Jozéphine
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  - Legacy

Jozéphine

A creepy doll with red leds instead of eyes.

The eyes blink 3 times in a cycle when she is moved around.

She was built in my beginnings and needs an update. She burns through 3.3V batteries like crazy.

Official GitLab Source

Git Lab link

Arduino snippets

Simple blink

Wire two leds to pin 0 of atTiny85. Wire two 220 Ohms resistors between each LED and GND.

Each LED should draw a max of 20 mA from the pin which keeps it just under the 40 mA limit.

If you want to wire more LEDs, look into other techniques or use other pins.

Simple arduino code

int led = 0; // LED pin
int brightness = 0;
int fadeAmount = 5; // points to fade LED by
 
void setup()
{
  pinMode(led, OUTPUT); // init led
}
 
void loop()
{
  fadeEyes(); // blink the eye thing
}
 
void fadeEyes()
{
  analogWrite(led, brightness);
  if (brightness == 255)
  {
    delay(1500); // stay a bit on full bright led
  }
 
  brightness = brightness + fadeAmount;
 
  //reverse direction at start & end of fade
  if (brightness == 0 || brightness == 255)
  {
    fadeAmount = -fadeAmount;
  }
 
  // wait 30 miliseconds to see changes
 
  delay(30);
}

Legacy

First arduino Code

#import <Arduino.h>
 
int led = 10; // LED pin
int sensor = 2; // Tilt sensor pin
int brightness = 0; 
int fadeAmount = 5; // points to fade LED by
int storedVal = 0; // Store value of sensor state
 
void setup()
{
  pinMode(sensor, INPUT_PULLUP); // init sensor as pullup
  pinMode(led, OUTPUT); // init led
}
 
void loop()
{
  int sensorVal = digitalRead(2); //Read sensor state
 
  if (sensorVal != storedVal) // if things have moved
  {
    storedVal = sensorVal;
    fadeEyes(); // blink the eye thing
  }
  else //if not turn led off
  {
    digitalWrite(led, LOW);
  }
 
  delay(10); // debounce for sensor
}
 
void fadeEyes()
{
  for (int i = 0; i<312; i++) //unexplainable cycle value
  {
    analogWrite(led, brightness);
    if (brightness == 255)
    {
      delay(750); // stay 3 seconds on full bright led
    }
 
    brightness = brightness + fadeAmount;
 
    //reverse direction at start & end of fade
    if (brightness == 0 || brightness == 255)
    {
      fadeAmount = -fadeAmount;
    }
 
    // wait 30 miliseconds to see changes
 
    delay(30);
 
  }
 
  digitalWrite(led, LOW);
}

Instructables project

Table of Contents

Jozéphine

Official GitLab Source

Arduino snippets

Simple blink

Legacy