Rembrandt Self-Portraits

0. Prologue

Here to not have all Rembrandt van Rijn self-portraits. Only these one of which there are good and large images.

1. Age of 21 or 22

1628

Image source: https://artsandculture.google.com/asset/rembrandt-laughing-rembrandt-harmensz-van-rijn/vgFXBjXYko3rWA

2.

1628-1629

Image source: https://artsandculture.google.com/asset/self-portrait-rembrandt-harmensz-van-rijn/AQHvOEXiF3p9fg

3. (copy?)

1629

Image source: https://artsandculture.google.com/asset/self-portrait-rembrandt-harmensz-van-rijn/pgESLEqtPqksZw

4. Age of 23

1629

Image source: https://artsandculture.google.com/asset/self-portrait-aged-23/VwGuMEq_Grsd-w

5.

1630

Image source: https://artsandculture.google.com/asset/selfportrait-rembrandt-harmensz-van-rijn/WAGlk3EYZbNjQQ

6.

1630-1631

Image source: https://artsandculture.google.com/asset/portrait-of-the-artist-as-a-young-man-rembrandt-van-rijn/QgEfUHzCkN472g

7.

1634

Image source: https://artsandculture.google.com/asset/self-portrait-with-velvet-beret-rembrandt-harmenszoon-van-rijn/mQGjCu2ESqQc_w

8.

1635

Image source: https://artsandculture.google.com/asset/self-portrait-with-shaded-eyes-rembrandt-van-rijn/GgEmZsdLFgLVrg

9.

1635

Image source: https://artsandculture.google.com/asset/rembrandt-and-saskia-in-the-scene-of-the-prodigal-son/fAFXpfS8tdF_Eg

It has a different pose and facial expression because it is part of a larger double portrait.

10.

1642-1643

Image source: https://artsandculture.google.com/asset/self-portrait-wearing-a-hat-and-two-chains-rembrandt-harmensz-van-rijn/MgG4MCN2pWPF6Q

11. Rembrandt with earrings

Image source: https://www.rct.uk/collection/search#/18/collection/404120/self-portrait-in-a-flat-cap

11. Rembrandt with earrings

1650

Image source: https://artsandculture.google.com/asset/self-portrait-rembrandt-harmenszoon-van-rijn/qgHjmzuyB9bkUg

There is another painting from Rembrandt Worksop (made by his pupils?) were he also wears earrings.

Rembrandt Worksop 1650

Image source: https://artsandculture.google.com/asset/portrait-of-rembrandt-rembrandt-workshop/VwH0YVIZS7toxw

12.

1652

Image source: https://artsandculture.google.com/asset/large-self-portrait-rembrandt-harmenszoon-van-rijn/dQG9VR8cLvD7EQ

13.

1658

Image source: https://artsandculture.google.com/asset/self-portrait/rgElkn0Mx7Hgnw

14.

1659

Image source: https://artsandculture.google.com/asset/self-portrait/-gHQe8vbiHn2xw

15. Age of 54

1660

Image source: https://artsandculture.google.com/asset/self-portrait-rembrandt-rembrandt-van-rijn-dutch-leiden-1606%E2%80%931669-amsterdam/yAHCmDlsTexTXQ

16.

1661

Image source: https://artsandculture.google.com/asset/self-portrait-as-the-apostle-paul-rembrandt-harmensz-van-rijn/LwGcE5lQC5dLUg

17.

1665

Image source: https://artsandculture.google.com/asset/portrait-of-the-artist-rembrandt-van-rijn/QgHkNBGhrxU0Ww

18. Age of 63

1669

Image source: https://artsandculture.google.com/asset/self-portrait-rijn-rembrandt-van/QgHA3WPpbgKD6g

1669

image source: https://en.wikipedia.org/wiki/Self-portraits_by_Rembrandt#/media/File:Rembrandt_Harmensz._van_Rijn_135.jpg

Electronic "paper crane" or orizuru

I had a bunch of smd LEDs and no idea what to do with them. But then, when I had watched all these events in Hong Kong. And when I had seen how they make this paper cranes I decided to make my own version.

It use ATtiny13 AVR microcontroller and software PWM to slowly fade wings on and off.

First i made paper crane and the rest is copy-paste basic forms. The basic shapes are actually simple and flat. The most difficult part is soldering SMD components.

All electronics and batterys (4 x AA) are in the bottom wooden box.

Schematic

Electronic paper crane schematic
Soldered circuit

Code

I used Arduino IDE to program ATtiny13.

/**
 * 
 * Hardware  ATtiny13
 * Software  Arduino IDE 1.8.10, Arduino as ISP, MicroCore
 * Clock     9.6Mhz
 * 
 * Author    Tauno Erik
 * Date      29.11.2019
 * 
 * 
 */
 
 /*                        ATtiny13 pins
  *  
  * Reset-ADC0-5/A0-PCINT5-PB5-| U |-VCC
  *  CLKI-ADC3-3/A3-PCINT3-PB3-|   |-PB2-PCINT2-2/A1-SCK-ADC1
  *       ADC2-4/A2-PCINT4-PB4-|   |-PB1-PCINT1-1-MISO-OC0B-INT0
  *                        GND-|___|-PB0-PCINT0-0-MOSI-OC0A
  */

//#define F_CPU 9.6E6L 

#include <avr/io.h>
#include <util/delay.h>

#define WING_UPPER    PB2
#define WING_MIDDLE   PB3
#define WING_LOWER    PB0
#define BODY          PB4

#define FADE_TIME     1024
#define PAUSE         10

void set_pin_high(byte pin) {
  PORTB |= (1 << pin); // or PORTB |= _BV(pin);
}

void set_pin_low(byte pin) {
  PORTB &= ~(1 << pin); // or PORTB &= ~_BV(pin);
}


void fade_in(int ftime, byte pin) {
    unsigned int d_max = ftime;
    
    for (int i = 1; i < ftime; i++) {
        set_pin_high(pin); 
        _delay_loop_2(i);

        set_pin_low(pin);
        _delay_loop_2(d_max - i); // 1 
    }
    
    set_pin_high(pin);
}


void fade_out(int ftime, byte pin) {
    unsigned int d_max = ftime;
    
    for (int i = 1; i < ftime; i++) {
      set_pin_low(pin);
      _delay_loop_2(i); 
        
      set_pin_high(pin); 
      _delay_loop_2(d_max - i);  // 1  
    }
    
    set_pin_low(pin);
}


void fade_out_in(int ftime, byte pin_out, byte pin_in) {
    unsigned int d_max = ftime;
    
    for (int i = 1; i < ftime; i++) {
        // out:on in:off
        set_pin_high(pin_out);
        set_pin_low(pin_in);
        _delay_loop_2(d_max - i);

        // out:off  in:on
        set_pin_low(pin_out);
        set_pin_high(pin_in);
        _delay_loop_2(i);  
    }

    set_pin_low(pin_out);
}


int main(void)
{
    /* setup */        
        // set pins as OUTPUT
        DDRB |= _BV(WING_UPPER);     // sama mis DDRB |= (1 << PB2);
        DDRB |= _BV(WING_MIDDLE);
        DDRB |= _BV(WING_LOWER);
        DDRB |= _BV(BODY);
 
        // set pin to HIGH
        PORTB |= _BV(WING_UPPER);
        PORTB |= _BV(WING_MIDDLE);
        PORTB |= _BV(WING_LOWER); */

        /* Fade in Body */
        delay(500);
        fade_in(FADE_TIME, BODY);    

        byte first_time = 1;
     /* loop */
        while (1) {
            if(first_time){
              fade_in(FADE_TIME, WING_UPPER);
              _delay_loop_2(PAUSE);
              first_time = 0;
            } else {
              fade_out_in(FADE_TIME, WING_UPPER, WING_MIDDLE);
              _delay_loop_2(PAUSE);
              fade_out_in(FADE_TIME, WING_MIDDLE, WING_LOWER);
              _delay_loop_2(PAUSE);
              fade_out_in(FADE_TIME, WING_LOWER, WING_MIDDLE);
              _delay_loop_2(PAUSE);
              fade_out_in(FADE_TIME, WING_MIDDLE, WING_UPPER);
              _delay_loop_2(PAUSE);
            }
        }
        return 0;
}

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