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Wired Remote Control for Digital Camera

 

1. Warnings and license agreement

I have successfully used the sound, light and projectile (only in gravity mode – I don’t have an air gun) sensors with the Canon EOS.

If you have a digital camera made by another manufacturer, check the remote control specifications carefully.

If you are using a LASER pointer please make sure you read the laser warnings on your laser device, they can be harmful.

Never point the laser at anyone and never look directly at the laser beam, it can permanently damage your sight.

 

If you are using a pellet gun be careful where you are pointing it, make sure that the pellet can be stopped by a

hard wall and the most important make sure that nobody will stand in front of the gun.

THE SOFTWARE AND HARDWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

 

 

The hardware and software for this project are shared under the Creative Commons Attribution NonCommercial 3.0 License.

For this remote I use the following software and hardware schematics with the permission of the authors:

- Display driver – a modified version of the S65-Shield for Arduino from Stephan Watterott. 
In this case I remove some functions from the driver that I don’t use but I also added new cool functions
like contrast, display on/off, scroll, display inverting, image from header file, gradient fill, digits.
At this moment I fully support only LS020 an L2F50 lcd’s, the LPH88 will need more work.
- Drops and Bullet menus – are inspired by Camera Axe project made by Maurice Ribble who also gives me the
permission to build no more than 20 Projectile sensors with the condition that all support for hardware and
software is made by me.
 

2. Device overview

GVI DSLR RC is a remote control for DSLR cameras or any other camera that has a wire remote control port. The main purpose of this device is

“freezing” of fast motion objects in a picture (also known as High Speed Photography), that can give you some pretty special photographic effects.

High Speed Photography is used in sports, physics and more.

The remote control has four input/output stereo female jack connectors, two of them are used to control cameras, flashes or other devices connected to

the remote and two of them are use to read data from sensors like sound, light, projectile and other type.

Wired Remote Control for Digital Camera Side view

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 1

On this device D1 is always a camera and D2 can be: None, Camera, Flash or Split. I will explain later each mode.

The 9V connector is used to power the remote using a 7-9V DC power adapter.

Warning:

Use only 7-9V DC power adapter with max. 700mA output.

Remove the batteries from the remote when using 7-9V DC power adapter. Using this power connector will not charge the batteries.

When using the USB programming dongle make sure that the power switch is in OFF (0 – see Fig. 3) position. In this case the remote is powered via USB.

 

To navigate through the remote menus I use 6 push buttons shown in the picture below.

Wired Remote Control for Digital Camera LCD and Keys 

Fig. 2

 

Key

Functions

M

Starts and stops the action of the current menu

S

Select a menu item/Edit value of a menu item

U

Move’s Up/Increase value with 20

D

Move’s Down/ Increase value with 1

L

Move’s Left/Decrease value with 1

R

Move’s Right/Decrease value with 20

To power up the device use the switch located on top of the remote.

Wired Remote Control for Digital Camera Top View

Fig. 3

 3. Battery changing and programming dongle

 

When your batteries power is low you have to change/recharge them. The GVI DSLR RC V3 is powered by 6 AA batteries 1.2-1.5V each.

To open the case you will need a small screwdriver to remove the screw plastic caps and also to remove the four screws located on the back

of the case at each corner (see Fig. 4).

Wired Remote Control for Digital Camera Screw Cap

Removing the screws

Fig. 4

After you remove all four screws and gently pull up the side of the case with the LCD. Warning: If you remove the battery connector from the board,

when reconnecting make sure that the red wire from battery holder is matched with the “+” pin of the Battery connector on the board.

If you remove the power switch cable, when reconnecting to OnOff connector on the board there is nothing to check.

If you are the happy owner of an Arduino Duemilanove or Uno you can remove the ATMega 328 chip and program it on these boards,

if not you will need an USB cable and the programming dongle connected as shown in Fig. 5.

Wired Remote Control for Digital Camera Programming Dongle

Programming Dongle Connected to the Main Board

Fig. 5

 4. Operation

 The GVI DSLR RC V3 has ten operation modes each located in the general menu (Desktop) item and a Settings menu.

The Desktop is shown in Fig. 6

Wired Remote Control for Digital Camera Main Menu

Fig. 6

Menu Item

Description

Manual

The devices connected to the remote are controlled by pressing U, D, L, R keys.

Bulb

Automatic control to take long exposure pictures.

Time Lapse

Automatic control to take a series of pictures.

Clip This menu is derived from Time Lapse

Triggered

The devices connected are controlled by sensors.

DarkRoom High speed mode to use with camera Bulb and one/two flash devices
Lightning High Speed mode dedicated to storm lighting photography

HDR

High Dynamic Range.

Bullet

Photography of high speed objects.

Drops Liquid drops photography.

Settings

General setting of the remote.

 

4.1. Manual Mode

 

This mode is used to trigger the devices connected to the remote by pressing the control keys. Use M key to Start/Stop this mode,

S to Start/Stop editing values, U, D, L, and R to change the parameters values.

 

Key

Action

U

Device 1 Focus – will be On until D key will be pressed

D

Device 1 Shutter

L

Device 2 Focus – if Mode is set to Came then will be kept pressed until R key is pressed

R

Device 2 Shutter - if Mode is set to Came

Wired Remote Control for Digital Camera Manual Menu

Fig. 7

In any mode D1 jack connector is a camera, so the Mode setting is referring to D2 as follow:

Mode None – no device is connected to D2;

Mode Came – a camera is connected to D2;

Mode Flas – a flash is connected to D2 – Only Shutter pin is used (see Fig. 7);

Mode Spli – a camera is connected to D2 – Focus pin is On follow by a delay between 0 and 999 [ms] D2ST (Device2 Split Time) followed by Shutter pin On.

In this case you can connect for example two flashes to the remote control and trigger them individually.

Seqv On/Off – if sequence in On then D2 is automatically controlled by the Mode setting at a delay SDel between 0 and 9999 [ms] after D key is pressed.

 

Jack connector pins

Fig. 8

 

4.2. Bulb Mode

 

 

The term bulb is a reference to old-style pneumatically actuated shutters; squeezing an air bulb would open the shutter and releasing the bulb would close it.

The bulb setting is used on some cameras, including some point-and-shoot cameras, to obtain shutter speeds slower than the maximum offered by the

camera otherwise.

Because of the risk of camera movement, the camera is most often mounted on a tripod for the duration of the exposure. While it's generally possible to

use the shutter release button on the camera itself, a cable release or electronic remote is often used to further eliminate the risk of shaking the camera

during the long exposure. The cable releases generally include a locking feature to eliminate the need to keep the button or plunger depressed during

extremely long exposures.

The bulb setting is useful for the following types of photographic subjects:

- fireworks at night;
- the night sky and celestial objects (see astrophotography);
- lightning;
- streets at night (creating streaks from moving cars).

This is the mode dedicated to long exposure photography inside an infinite loop that will stop only if you press M key (only after you’ve started using the same key).

Use S to Start/Stop editing values, U, D, L, and R to change the parameters values.

Don’t forget to put your camera in Bulb mode for this feature to work.

Wired Remote Control for Digital Camera Bulb Menu

Fig. 9

In this mode D1 must be a camera and D2 can be Came, Flas or Spli.

In D2 case the timer starts when the D1 shutter is On (exposure begins).

In Fig. 9 with yellow is the time to wait before starting the function this time is set in Settings Menu.

ExpT – isthebulb exposure time in [s]  is shown in red.

Proc - is the time needed for camera to process the picture (or can be use as a delay time) [s];

Mode - is the device 2 mode - Came, Flas, Spli.

D2ST - if Mode is set to Spli then D2ST is the delay in [ms] between D2 Shutter pin and D2 Focus pin.

Seqv - if set to On then the D2 is auto controlled and triggerd after SDel in [ms] after D1 is triggered.

This mode can be delayed (programmed to start after a predefined time) using DelH, DelM and DelS parameters from Settings Menu.

 

4.3. Time Lapse Mode

 

 

Time-lapse photography is a cinematography technique whereby the frequency at which film frames are captured (the frame rate) is much lower than

that which will be used to play the sequence back.

Time-lapse lets you see the natural progression of time, while not having to wait through the actual length of it… so you could watch the sunset

(at least, yesterday’s sunset) as you always wanted to, without staying up late to do so.

Photographing the night sky is extremely rewarding because you often get views of things that your own eyes either can't see, or you don't think

to look for them. When seeing photos of stars, star trails, or other night images, people are often surprised by the unreal—or surreal—colors.

They often think these photos are either fake or manipulated.

Wired Remote Control for Digital Camera Time Lapse Video

Wired Remote Control for Digital Camera TimeLapse Menu

Fig. 10

Use M key to Start/Stop this mode, S to Start/Stop editing values, U, D, L, and R to change the parameters values.

In Fig. 10 with yellow (right side) is the time to wait before starting the function this time is set in Settings Menu.

Hrs – Hour’s interval;

Min – Minutes interval;

Sec – Seconds interval;

Wake – Wakeup interval - activates camera focus to get it out from Stand By 0-59[s] one or two seconds will do the job for most cameras;

Pics – Number of pictures to take;

UseB – If On will use bulb mode for each picture (Don’t forget to put your camera in Bulb mode for this feature to work);

Following are valid only if UseB is On (see 4.2 Bulb Mode)

ExpT – Exposure time [s];

Proc - is the time needed for camera to process the picture (or can be use as a delay time) [s];

ModeD2 mode None, Came, Flas and Spli;

D2ST – if Mode is Spli this is Split time in [ms];

Seqv – Activates D2 after SDel [ms];

SDel – Sequence delay in [ms].

Example of simple Time Lapse

Time Lapse in combination with Bulb function will give you Star Trails Photography

This mode can be delayed (programmed to start after a predefined time) using DelH, DelM and DelS parameters from Settings Menu.

 

4.4 Clip Menu

 

Wired Remote Control for Digital Camera Clip Menu

Fig. 11

In Fig. 11 with yellow (right side) is the time to wait before starting the function this time is set in Settings Menu.

CLen - Clip length [s];

FPS - Frames per second;

FInt - Frames interval [s];

HDR - On/Off. If On this is usefull to create HDR TimeLapse Clips;

Wake - Wake [s] up the camera before the shooting with "n" seconds.

To use the HDR make sure that you set the Automatic Exposure Bracketing (AEB) before. To give you a little more control in

Automatic Exposure Bracketing mode you can use it ether in Aperture Priority Mode or Shutter Priority Mode. Using AEB in

Aperture Priority mode will all you to choose the aperture you want for the shot and telling the camera to make the variations

in shots by varying shutter speed. Alternatively using AEB in shutter priority mode will keep the shutter speed at the speed you

select and tell the camera to vary the exposure by changing the aperture in your shots.

Here is an example of HDR Time Lapse Clip

This mode can be delayed (programmed to start after a predefined time) using DelH, DelM and DelS parameters from Settings Menu.

 

4.5. Triggered Mode

 

 

Freezing fast motion objects in a picture (also known as High Speed Photography), can give you some pretty special photographic effects.

High Speed Photography is used in sports, physics and more.

This is the first mode dedicated to high speed photography.

 Use M key to Start/Stop this mode, S to Start/Stop editing values, U, D, L, and R to change the parameters values.

Wired Remote Control for Digital Camera Triggered Menu

Fig. 12

Sensor 1 power and sensor 2 power parameters are set by D1By and D2By.

 

[email protected] - Device controlled by sensor 1 will be triggered when the value read by sensor is High (higher) or Low (lower) than S1TV;

S1TV – Sensor 1 threshold value;

D1ByD1 is triggered by Sen1 (Sensor 1), Sen2 (Sensor 2), S1|2 (Sensor 1 OR Sensor 2), S1&2 (Sensor 1 AND Sensor 2);

D1DeD1 delay in [ms] – is the delay between the moment when the sensor assigned to D1 meets the trigger condition and the moment when the D1 is triggered.

D1Cy – is the cycle time in [ms] of D1 – is the time to wait between triggers even if the conditions are met (to avoid successive triggers).

Mode – D2 mode can be None, Came, Flas or Spli;

 

[email protected] - Device controlled by sensor 2 will be triggered when the value read by sensor is High (higher) or Low (lower) than S2TV;

S2TV – Sensor 2 threshold value;

D2ByD2 is triggered by Sen1 (Sensor 1), Sen2 (Sensor 2), S1|2 (Sensor 1 OR Sensor 2), S1&2 (Sensor 1 AND Sensor 2);

D2DeD2 delay in [ms] – is the delay between the moment when the sensor assigned to D2 meets the trigger condition and the moment when the D2 is triggered.

D2Cy – is the cycle time in [ms] of D2 – is the time to wait between triggers even if the conditions are met (to avoid successive triggers).

D2STD2 Split Time [ms] if D2 Mode is set to Spli.

S1 and S2 values from the bottom of the screen are readings of the sensors to see the evolution of the event monitored by sensors.

Examples can be seen here

 

4.6 DarkRoom menu

 

This is very useful when you need to take pictures of high speed events. You will have to use a dark room, set the camera to Bulb and connect a flash or two

to D2 jack connector.

In this mode Device 1 (Camera) Focus And Shutter are on until the condition to trigger Device 2 are met, after the flash is triggered the function will end

and you need to press M key to start it again.

Use M key to Start/Stop this mode, S to Start/Stop editing values, U, D, L, and R to change the parameters values.

Wired Remote Control for Digital Camera DarkRoom Menu

Fig. 13

Sensor 1 power and sensor 2 power parameters are set by D1By and D2By.

[email protected] - Device controlled by sensor 1 will be triggered when the value read by sensor is High (higher) or Low (lower) than S1TV;

S1TV – Sensor 1 threshold value;

Mode – D2 mode can be None, Came, Flas or Spli. Use only Flas or Spli in this mode.

[email protected] - Device controlled by sensor 2 will be triggered when the value read by sensor is High (higher) or Low (lower) than S2TV;

S2TV – Sensor 2 threshold value;

D2ByD2 is triggered by Sen1 (Sensor 1), Sen2 (Sensor 2), S1|2 (Sensor 1 OR Sensor 2), S1&2 (Sensor 1 AND Sensor 2);

D2DeD2 delay in [ms] – is the delay between the moment when the sensor assigned to D2 meets the trigger condition and the moment when the D2 is triggered.

D2Cy – is the cycle time in [ms] of D2 – is the time to wait between triggers even if the conditions are met (to avoid successive triggers).

D2STD2 Split Time [ms] if D2 Mode is set to Spli.

S1 and S2 values from the bottom of the screen are readings of the sensors to see the evolution of the event monitored by sensors.

 

 

4.7 Lightning Mode

One of the hardest things to get right in a photograph is the lighting. By using GVI DSLR RC V3 in combination with a light sensor connected to

Sensor 1 port this can be easy.

In this mode the remote will react only to sudden changes in light intensity and for slow changes the sensor reading is autoadaptive, this means that

the sensor reading on the screen will indicate most of the time 0 (the values are updated 4 times/second).

Wired Remote Control for Digital Camera Lightning Menu

Fig. 14

S1TV – Sensor 1 threshold value - try to use values above 40;

D1Cy – is the cycle time in [ms] of D1 – is the time to wait between triggers even if the conditions are met (to avoid successive triggers).

Keep in mind that if Mirror Lock Up is enable then also the cycle time will be increased.

 

4.8. HDR Mode

 

 

In image processing, computer graphics, and photography, high-dynamic-range imaging (HDRI or just HDR) is a set of techniques that allow a greater dynamic

range of luminance between the lightest and darkest areas of an image than current standard digital imaging techniques or photographic methods.

This wide dynamic range allows HDR images to more accurately represent the range of intensity levels found in real scenes, ranging from direct sunlight to faint starlight.

Wired Remote Control for Digital Camera HDR Menu

Fig. 15

Use M key to Start/Stop this mode, S to Start/Stop editing values, U, D, L, and R to change the parameters values.

This function works only if the camera is set to Bulb mode.

Exp – Base exposure time [ms] is the exposure time that camera firmware chooses function of aperture and ISO speed, for example 1/250 is 4 [ms], 1/1000

is 1 [ms] this is the minimum exposure time in this mode. Remember aperture and ISO speed choose by camera for the exposure time, because you need

to set the parameters in Manual + Bulb.

Inc – is the EV increment, 250 is 1/4, 333 is 1/3, 500 is 1/2, 666 is 2/3 and so on until 2000 is 2 EV.

Pics – is the number of pictures to be taken, maximum 17;

The formula for exposure time is BaseExposure * 2 ^-(IncrementValue/1000).

Here are some HDR photos

4.9. Bullet Mode

 

 

High speed bullet pictures passing through various objects! It is almost impossible to capture a speeding bullet with your eye and the impact

the bullet creates is even faster and happens within a blink of an eye.

It will be very much interesting to see how the objects look while breaking and shape it takes after hitting with a bullet.

Wired Remote Control for Digital Camera Projectile Menu

Fig. 16

 

Use M key to Start/Stop this mode, S to Start/Stop editing values, U, D, L, and R to change the parameters values.

 

In this mode you can capture the impact of a pellet with different objects or a  free falling object.

Dist – is distance to target (impact zone) measured from sensor in [cm];

Grav – if you want to capture free falling objects then set this parameter to On;

If more than 4 seconds will pass from the time when the function was started and the first photo gate of the sensor doesn’t detect anything then

“S1 Detection failed.” error will be raised and the function will end.

If more then 1.5 second will pass from the time when first photogate will detect an object and photo gate 2 will not detect the object then

“S2 Detection failed.” Error will be raised and the function will end.

If both photo gates are triggered then the speed of the object will be diplayed on the screen.

This function was tested by me only in gravity mode and using small balls propelled by air from a small pressure tube.

 

4.10. Drops Mode

 

 

One fun digital photography challenge for those with a little time on their hands, particularly on a lazy long weekend as I know many

of you are on, is photographing water drops.

With the Dripper device used in Drops Menu you can obtain results like those in the following links Water drops collision or Milk Crowns.

Wired Remote Control for Digital Camera Drops Menu

Fig. 17

 

Use M key to Start/Stop this mode, S to Start/Stop editing values, U, D, L, and R to change the parameters values.

 

Dr1S – Drop 1 size is the time in [ms] needed to form first drop, long time = big drop;

De2D – Drop 2 delay it the time to wait between drop 1 and 2 in [ms];

Dr2S – Drop 2 size is the time in [ms] needed to form first drop, long time = big drop;

PicD – Picture delay I the time between drop 2 and the moment when the picture is taken in [ms].

 

4.11. Settings menu

 

Wired Remote Control for Digital Camera Settings Menu

 

 

Fig. 18

Use S to Start/Stop editing values, U, D, L, and R to change the parameters values.

Cont – this parameter controls the contrast of the LCD;

Prof – selected profile, if the value is changed the values of the parameters associated with the profile will become usable only if you Load them.

This device can store three profiles 0, 1, 2.

Load – loads the values stored in ROM for the selected profile;

Save – saves current parameters values in memory space associated to the selected profile;

Reset – will load from ROM the default values for the remote parameters associated with the selected profile;

DelH - Hours delay for Bulb, TimeLapse and Clip functions;

DelM - Minute delay for Bulb, TimeLapse and Clip functions;

DelS - Seconds delay for Bulb, TimeLapse and Clip functions;

BDel – is the button pressed time in [ms]. This value is necessary because the camera electronics wont feel a short change in button status change

– in the case of Canon 450D the value seems to be somewhere between 1.5 and 2 [ms]. This parameter affects D2ST

(device 2 split time) D2ST≥BDel.

MLU - Mirror Lock-up On/Off, if set to On the Shutter on D1 is pressed to activate the Mirror Lock-up on Camera;

MLUD - in [ms] is the delay time between the time when Shutter on D1 is pressed to activate MLU and the time when the picture is taken - it allows

to reduce the vibrations induces by MLU.

MLU parameters are valid for all menus so they will insert a additional delay.

BkLi - Back Light control: 0 = always Off; 1 = always On; 2 = Auto Off after 6 sec.

For this parameter to work some hardware changes have to be made(see section 8 Updates).

 

5. Sensors

 See Sensors page here

6. Firmware

 To program the “brain” of this remote I use Arduino IDE that can be downloaded from http://www.arduino.cc/en/Main/software.

The ATMega 328 CPU found on this remote is flashed with Arduino UNO boot loader, so before starting the firmware update you need to choose the UNO board.

 

6.1. Install Arduino IDE

 After you download the Arduino environment, follow the instructions on the Arduino site to install it under your OS (Windows, Linux, Mac).

 6.2. Install S65Display library

 Download the S65Display library from my site and unzip it in the folder ..\arduino-00xx\libraries\ and unzip.

 6.3. Check the LCD type

 

On the main board inside the case you will find a label that has written on it LS020 or L2F50.

If the label is LS020 then copy from the folder “fontfont_8x8.c and font_8x8.h files in S65Display folder.

If the label is L2F50 then copy from the folder “font_rtfont_8x8.c and font_8x8.h files in S65Display folder.

The L2F50 has a different way of addressing the pixels so for it I had to rotate with 90Deg clockwise and mirror vertically the bits for the fonts in order to keep the load on the CPU low.

Also you will need to open and edit the file S65Display.h and o to lines 33-36 in the code. There you will find

//Display settings
//#define S65_LS020
//#define S65_LPH88
#define S65_L2F50

// means that the line is commented (will not be compiled), so if you have an L2F50 you have to comment/uncomment the line corresponding to your screen.

On L2F50 the contrast function doesn't work at this time, work is in progress but i don't know if i will succed.

The contrast works now on L2F50.

 

 6.4. Programming dongle

 

If you don’t have an Arduino UNO or Duemilanove (http://grozeaion.com/electronics/arduino/131-atmega328p-burning-bootloader.html see how to transform a Duemilanove in to UNO and get more space in ATMega 328 memory) then you will need the programming dongle.

USB FTDI Programming Dongle

Connect the dongle to the Programming pin header on the board and then using a USB cable connect it to the computer.

Mother Board with LS020 LCD

6.5. Arduino IDE

 

Open Arduino, from the menu select Tools, Board and select Arduino UNO.

Arduino Board Selection 

 In Tools go to Serial Port and choose the COM XX (depends on what you have attached to the computer) in the Device Manager is seen as USB Serial Converter and manufacturer is FTDI.

 Arduino COM Selection

 Now from File menu choose Open and point to the folder where you unzip the GVI_DSLR_RC_v3 and select GVI_DSLR_RC_v3.pde file then click Open.

Arduino Sketch Selection 

In your window is shown the code that runs on the remote control. If you have any programming skills then you can

play with the code and make adjustments to serve you better, if not leave the code as it is.

Click on the Upload button (the arrow pointing to right) and wait for the code to be uploaded into the chip.

Firmware 

If you have any trouble or questions please contact me by e-mail (don’t forget to attach some screen shots) with the problem description.

 

7. Downloads

Eagle files (sch and brd):

InOut module

Light Sensor

Projectile Sensor

Sound Sensor

Main Board

USB Dongle

Firmware

GVI_DSLR_RC_V3R1

GVI_DSLR_RC_V3R2

  • Added delay timer for Bulb, Time Lapse and Clip menus. The delay timer is found in Settings menu

and the parameters are DelH 0-99[h], DelM 0-59[min], DelS 0-59[s].

  • Added Clip menu

 

GVI_DSLR_RC_V3R3

  • Added Mirror Look Up support
  • Some bugs removed
  • Improved use of RAM memory
  • Removed processing time in Bulb Mode (ROM_BulbProc)
  • Removed HDR Button Delay (ROM_HDRBtnDelay)

GVI_DSLR_RC_V3R4 - Skipped (all changes incorporated in V3R5)

GVI_DSLR_RC_V3R5

  • Some bugs removed
  • Improved use of RAM memory (Decrease the size of logo image - download new S65 Display Driver - now works with Arduino IDE 1.0)
  • Re added processing time in Bulb Mode (Proc)
  • Added Back Light Control (BkLi)
  • Recoded battery indicator and buttons.

S65 Display Driver

Manual

Wired Remote Control for Digital Camera Manual

 

8. Updates

Added wiki page http://grozeaion.wikispaces.com/

Added hardware and software support for LCD Back Light.

Wired Remote Control for Digital Camera Back Light Hardware Change

9. Video Demo

 

10. 3D file

The 3DXML file (download 3DXML Player)

 

The case

{3DXML_Player|GVI_Remote_Control_v3.3dxml}

The "Dripper"

{3DXML_Player|GVI_Dripper.3dxml}

 

 

 

 

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Wednesday the 22nd. Author: Ion GROZEA.