Remote Trigger with Arduino


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One problem with the Sony NEX 5 camara series is the lack of a decent remote shutter mode. You are able to switch it to IR mode and use the IR remote control to take a picture. However you can’t combine any of the other available trigger modes like bracketing or high speed trigger with the IR remote control. I wanted to change this and started this project described here: The ultimate remote trigger for the Sony NEX 5 using a servo and an arduino board. I called this project The Ultimate Trigger V1.

Creative Commons License The Ultimate Trigger V1 is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.

The remote control has four different possibilities for taking a picture:

  • Software – Via code running on a host computer sending commands to the COM port where the arduino is attached
  • Arduino – Via code running on the arduino itself (not implemented at the moment)
  • IR remote – Via an arbitrary IR remote control
  • Cable – Via an attached remote release cable

The following image shows the finished breadboard version. You see the arduino board in blue on the left above the yellow 9V battery. Between the arduino board and the battery is the attached wireless remote receiver. In the middle you find the white breadboard with the necessary electronics. On the NEX you see the servo attached via a cable strap and a rubber band. On the right you see the wireless remote transmitter and the IR remote transmitter.

Ultimate Trigger V1 - Overview
Ultimate Trigger V1 - Overview

This image shows the breadboard in detail: On the breadboard you find from top to bottom:

  1. The attached servo (a JR type model with brown, red and orange cables)
  2. The attached wireless receiver. This could also be any other type of Minolta, Konica-Minolta or Sony remote cable release. The receiver is a third party RF wireless type.
  3. The IR receiver able to receive most types of consumer IR remote controls.
  4. Three status LEDs with the necessary series resistors.
Ultimate Trigger V1 - Details
Ultimate Trigger V1 - Details

This image shows the breadboard design in detail. It has been made with Fritzing.

Ultimate Trigger V1 - Breadboard
Ultimate Trigger V1 - Breadboard

This image shows the schematics of the electronics (also made with Fritzing).

Ultimate Trigger V1 - Schematic
Ultimate Trigger V1 - Schematic

The following code for the arduino sketch makes use of two libraries: Servo (included in the arduino IDE) and IRremote!

/*
 * Ultimate Trigger V1
 * by Markus Matern aka PanoTwin Markus
 * 
 * Release: 20120107
 * 
 * This code is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License.
 * To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/3.0/
 * or send a letter to:
 * Creative Commons, 171 Second Street, Suite 300, San Francisco, California, 94105, USA.
 */
 
#include <Servo.h>
#include <IRremote.h>
 
// Servo configuration
const int servoPin = 11;
const int minimumAngle = 0;
const int maximumAngle = 179;
const int zeroAngle = 100;
const int wakeUpAngle = 107;
const int shootAngle = 110;
Servo myservo;
 
// Wireless remote configuration
const int triggerWhite = 10;
const int triggerBlue = 9;
int whiteVal = LOW;
int blueVal = LOW;
 
// IR receiver configuration
int RECV_PIN = 8;
IRrecv irrecv(RECV_PIN);
decode_results results;
 
// Diagonstic configuration
const int ledStatus = 7;
const int ledTrigger = 6;
const int ledError = 5;
 
void setup() {
  // Diagnostic setup
  pinMode(ledStatus, OUTPUT);
  digitalWrite(ledStatus, HIGH);
  pinMode(ledTrigger, OUTPUT);
  digitalWrite(ledTrigger, LOW);
  pinMode(ledError, OUTPUT);
  digitalWrite(ledError, LOW);
 
  // Servo setup
  myservo.attach(servoPin);
  myservo.write(zeroAngle);
 
  // Wireless setup
  pinMode(triggerWhite, INPUT);
  // make sure the input pin is not undefined
  digitalWrite(triggerWhite, HIGH);
  pinMode(triggerBlue, INPUT);
  // make sure the input pin is not undefined
  digitalWrite(triggerBlue, HIGH);
 
  // IR receiver setup
  irrecv.enableIRIn(); // Start the receiver
 
  // Serial setup
  Serial.begin(9600);
}
 
void shoot(){
  StatusTrigger(1);
  myservo.write(wakeUpAngle);
  delay(1000);
  myservo.write(shootAngle);
  delay(1000);
  myservo.write(zeroAngle);
  StatusTrigger(0);
  delay(1000);
}
 
void wakeUp(){
  StatusTrigger(1);
  myservo.write(wakeUpAngle);
  delay(1000);
  myservo.write(zeroAngle);
  StatusTrigger(0);
  delay(1000);
}
 
void minAngle(){
  StatusTrigger(1);
  myservo.write(minimumAngle);
  delay(1000);
  myservo.write(zeroAngle);
  delay(1000);
  StatusTrigger(0);
}
 
void maxAngle(){
  StatusTrigger(1);
  myservo.write(maximumAngle);
  delay(1000);
  myservo.write(zeroAngle);
  delay(1000);
  StatusTrigger(0);
}
 
void Blink(int blinkLed,
           int milliseconds,
           int blinkCount)
{
  for(int i = 0; i < blinkCount; i++)   {
      Status(blinkLed, 1);
      delay(milliseconds/blinkCount/2);
      Status(blinkLed, 0);
      delay(milliseconds/blinkCount/2);
    }
  }
  void BlinkBeforeTrigger(int milliseconds) {
    Blink(ledTrigger, milliseconds, 3);
  }
  void StatusTrigger(int newStatus) {
    Status(ledTrigger, newStatus);
  }
  void StatusError(int newStatus) {
    Status(ledError, newStatus);
  }
  void Status(int pin, int newStatus) {
    if(newStatus){
      digitalWrite(pin, HIGH);
    } else {
      digitalWrite(pin, LOW);
    }
  }
  void loop() {
    // remote control via serial communication
    if (Serial.available() > 0) {
    int b = Serial.read();
    switch(b) {
      case 't':
        shoot();
        break;
      case 'w':
        wakeUp();
        break;
      case '0':
        minAngle();
        break;
      case '8':
        maxAngle();
        break;
      default:
        Blink(ledError, 600, 3);
        break;
    }
    Serial.flush();
  } else if (irrecv.decode(&results)) {
    switch(results.value)
    {
      // Sony Shutter (2 Sec)
      case 0xECB8F:
        StatusTrigger(1);
        Blink(ledTrigger, 2000, 4);
      // Note: No break here!
      // fall through to shoot!
      // Sony Shutter
      case 0xB4B8F:
        shoot();
        break;
      case 0:
        break;
      default:
        StatusError(1);
        Serial.println(results.value, HEX);
        Blink(ledError, 600, 3);
        StatusError(0);
        break;
    }
    // Receive the next value
    irrecv.resume();
  } else {
    // Check the wireless remote trigger
    int newWhiteVal = digitalRead(triggerWhite);
    int newBlueVal = digitalRead(triggerBlue);
 
    if (newWhiteVal != whiteVal) {
      if (newWhiteVal == HIGH) {
        //Serial.println("White High");
        myservo.write(zeroAngle);
        StatusTrigger(0);
      } else {
        //Serial.println("White Low");
        StatusTrigger(1);
        StatusError(0);
        myservo.write(wakeUpAngle);
      }
      whiteVal = newWhiteVal;
    }
    if (newBlueVal != blueVal) {
      if (newBlueVal == HIGH) {
        //Serial.println("Blue High");
        StatusError(0);
      } else {
        //Serial.println("Blue Low");
        myservo.write(shootAngle);
        StatusTrigger(1);
        StatusError(1);
      }
      blueVal = newBlueVal;
    }
  }
}

Reprojected Oktoberfest like Bavaria sees it

This stereographic reprojection shows the Oktoberfest from the Bavaria statue. The original panorama has been made from inside the head of Bavaria. Bavaria is a hollow bronze statue that can be ascended in the inside. It is located next to the Theresienwiese, where the famous Oktoberfest takes place since more than 200 years. See the original panorama here.

Reprojected Oktoberfest like Bavaria sees it
Reprojected Oktoberfest like Bavaria sees it

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Nikon Nikkor 20mm f/2.8 AI-s and Novoflex NEX/NIK

The Novoflex NEX/NIK adapter makes it possible to mount Nikon lenses on the Sony NEX camera line. Read more about the lens here.

Nikon Nikkor 50mm f/1.8 AI and Novoflex NEX/NIK

The Novoflex NEX/NIK adapter makes it possible to mount Nikon lenses on the Sony NEX camera line. Read more about the lens here or here. On the Novoflex homepage you find an adapter finder here.

The Nikon 50mm f/1.8 AI is a manual lens. The Novoflex NEX/NIK adapter is also only a manual adapter. However this is not a problem with the Sony NEX-5. You just have to be aware of some things.

  1. Make sure you enable the shooting without a lens: Menu → Setup → Release w/o lens → Enable
  2. Before you continue make sure you have Firmware ≥ Ver. 04 installed! Check this using Menu → Setup → Version. When you have an older version installed download the latest version from the Sony support site here.
  3. Enable the MF Assist function using Menu → Setup → MF Assist → 2 Sec
    You can choose between No Limit — 2 Sec — 5 Sec.
  4. Enable the Peaking Level using Menu → Setup → Peaking Level → Mid
    You can choose between Low — Mid — High.
  5. Choose your Peaking Color using Menu → Setup → Peaking Color→ Red
    You can choose between YellowRed — White.

Switch your camera to A- Mode (aperture priority) and use the MF Assist button to get a perfectly sharp picture even when shooting the lens wide open with f/1.8!

Oktoberfest with Tilt-Shift effects

Some months ago I stumbled across a post on Sonyalpha Rumors. The Lensbaby Tilt Transformer with the possibility to mount the Lensbaby Composer Focus Front or Nikon lenses on it. The local photography store had it in stock and I bought it right away! First without a Nikon lens, but shortly afterwards I bought two of them. You see the results in the following images.

Oktoberfest Tilt-Shift Effect @ 24mm
Oktoberfest Tilt-Shift Effect @ 24mm

See additional information for this Nikon lens on the Sony NEX camera line in this post.

Oktoberfest Tilt-Shift Effect @ 50mm
Oktoberfest Tilt-Shift Effect @ 50mm

See additional information for this Nikon lens on the Sony NEX camera line in this post.

Oktoberfest Lensbaby Effect
Oktoberfest Lensbaby Effect
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Bad Hindelang with Tilt-Shift effects

Some months ago I stumbled across a post on Sonyalpha Rumors. The Lensbaby Tilt Transformer with the possibility to mount the Lensbaby Composer Focus Front or Nikon lenses on it. The local photography store had it in stock and I bought it right away! First without a Nikon lens, but shortly afterwards I bought two of them. You see the results in the following images.

Bad Hindelang with a Tilt-Shift Effect @ 24mm taken with a Nikon lens on the Lensbaby Tilt Transformer
Bad Hindelang with a Tilt-Shift Effect @ 24mm taken with a Nikon lens on the Lensbaby Tilt Transformer

See additional information for this Nikon lens on the Sony NEX camera line in this post.

Bad Hindelang Tilt-Shift Effect @ 50mm taken with a Nikon lens on the Lensbaby Tilt Transformer
Bad Hindelang Tilt-Shift Effect @ 50mm taken with a Nikon lens on the Lensbaby Tilt Transformer

See additional information for this Nikon lens on the Sony NEX camera line in this post.

Bad Hindelang Lensbaby Effect taken with the Lensbaby Composer Focus Front
Bad Hindelang Lensbaby Effect taken with the Lensbaby Composer Focus Front
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Bad Hindelang seen from Nusche

This panorama shows Bad Hindelang from the viewpoint Nusche, that’s just halfway to the urban district of Gailenberg. It is a sort of an experiment because it is one of my first hand held shots with the Sony NEX-5 camera using the 16mm pancake lens and the fisheye converter. I took eight pictures around, two zenith and two nadir shots. I took eight images, because with only a Philopod setup this is easier to shoot than only six shots around, which would give you enough overlap for the lens combination. The original equirectangular image had a size of 12000×6000 pixels.
[pano file=”https://www.panotwins.de/wp-content/panos/MMatern_20111002_5810_NuscheZwischenKastanienHerbst.xml” preview=”https://www.panotwins.de/wp-content/panos/MMatern_20111002_5810_NuscheZwischenKastanienHerbst.jpg”]
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