Hi Will. I'm so glad you were able to put it together so nicely. Everything looks very clean and tidy. Just out of curiosity, what are the power resistors on the back of the LED's for?
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Hi Will. I'm so glad you were able to put it together so nicely. Everything looks very clean and tidy. Just out of curiosity, what are the power resistors on the back of the LED's for?
Will: yes you can use the “Lcd on” input with an 110v AC coil relais connected coil-side to your timer an with the switch side (normally open) to the lcd-on input. It triggers the “s_4” variable with...
Oh man! Not this again. Sure it‘s far to be perfect for RA4, but it works. Somehow, but it works. Period. I had similar discussions of the B/W grade about how it’s impossible to hit the highest...
Look here: https://www.largeformatphotography.info/forum/showthread.php?159164-My-LED-enlarger-lightsource-instructions-Complete-parts-list-and-build
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The problem is not to match the values. This values are based normally on a tungsten lightsource. Tungsten has a particular wavelength combination, while other lightsources have others. So even the...
Just make sire to connect the 256 to the two 64 led modules in series. In the code you have to change the LED count variable. It’s all in the document.
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1x256 and 2x64 is enough for 8x10. It's not really much light buty I have no issues on my 8x10 enlarger so far. My code is only for Arduino: Rapberry PI is an overkill for tis task. I use Raspberry...
Thanks...
Nah... I didn't worked on it at weekends. so it was about 60h of work. Building things in my home workshop is my hobby: so it's 60h of fun for me. Actually I'm building small stuff:...
I wanted a wooden 8x10 camera à la Shenhao, Tachihara, Deardorff etc. With lots of shiny parts.
Since I have a well equipped workshop (I also build guitars) I started to plan. First I bought some...
You need the Arduino IDE @ https://www.arduino.cc/en/main/software
There are some Software environements that allow you to write Arduino code if you install some sort of plug-in. At least I know...
I found a error in the code due to an obsolete Infrared remote control part I added first. . I removed the IR library reference and cleaned up the parts related to it.
I added here a ZIP file with...
Forums are for loud thinking. I like that.
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My words.
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There were rumors that Arduino could be used as hardware malware carrier trough the USB port. Honestly for someone that is willing to distribute maleware that way the Arduino community isn't a great...
Yes, this C-like environment of Arduino is a different one than the composition of a C++ project. I also use C# and .NET for "higher" programs.
My code is anything but well formed. As a programmer...
Ops.. sorry! I copied the link as text from the first post (there it works) with the '...' in the url.
It's fixed now.
The files of this project can now be found on Github: https://github.com/Mglattfelder/Enlarger-LED-Lightsource
I will post all code and documentation changes on Github and announce it in this forum
I was able to add to the timer a 0.1s increment option. From the YMC color mode and press # to toggle between 0.1s or 1s increments. When you go back to contrast control mode it will keep this 0.1s...
Everyone was invited to build it’s own board at the beginning of Arduino. The problem began when the chinese clones used the ‘ made in italy’ logo. I use professionally Arduino bootloader on custom...
Technically there are no issues with clone boards. The word ‘counterfeit’ came up as Arduino became a Trademark from a former more or less open source project.
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Correct. It can control any ws2812b and compatible( there are some others that may work). The code has just a photographic specific function, but can be adapted to any use.
Building first the...
Since some of you have asked me directly, I have, as promised, made a detailed instruction for building an LED controller and convert an enlarger to a LED light source.
You can find it in this...
The manual I am publishing here is the result of requests I received in this thread
https://www.largeformatphotography.info/forum/showthread.php?155418-DIY-4x5-Enlarger-with-LED-light-source
It's...
I have decided to write detailed and accurate step by step building instructions. The goal is that even people who are not trained in electronic projects can build such a LED light source. A little...
Oh, well. Better don't ask my wife what I have already promised to build or repair.
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On any 'bigger' enlarger project I have done I have built a wired controller. I personally find it better too.
But for such a small adapter a phone interface is almost mandatory. The connection...
Yes. The phone controller can compute everything. Despite having only 32kB of RAM. It's basically an version of ESP8266. Cheap an reliable.
Reversing the lenses makes all aligned with no distorsion....
Don’t really know why LF is less popular. Maybe we are used to 'smaller' stuff here (our cars are smaller too). I use beta-layout.com for the boards. I used it to make make several prototypes of...
Oh, they know their way around very well, and are among the leading analogue shops in Europe. But they make little turnover with large format. Also LF is in fact much less common here as over the...
That’s the idea. It depends from how interested the commercial partner I’m working with is. But I guess a kit version is possible even if the partner don’t want to develop a commercial product. Then...
They are really versatile and come already assembled in various ready to use form factors like the 8x8 or 16x16 matrix. Any arduino or other mcu can control them with an easy to use library. And the...
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I have finished an 8x10 enlarger as well. I used 12mm steel rods and a trapezoid thread for focusing. The bellows is the failed construction I had planned for the camera (it was too stiff)....
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Now I have finally finished my 8x10 enlarger. I used 12mm steel rods and a trapezoid thread for focusing. The bellows is the failed construction I had planned for the camera (it was too...
Hard tropical wood can make sense. It is less prone to scratches and dents. I used spruce for the body and beech or birch would have been better. Beech is not really available in large planks...
I thank you (and everyone else) for the compliments. This not only helps my ego, but it is always a confirmation that I am on the right track. Well, yes: mother of pearl would be a bit too much of a...
I have now made such a ground glass and I am quite satisfied. The most difficult thing was to find the grit silicon carbide around here. I didn't find any 600s, only 400s. The new ground glass is not...
I see. I'm sure it works well... if I had a 138 I would consider it. But the only 138 I see starts at 700€ plus several 100€ shipping on eBay. Out of my budget.
I have already build an 4x5 enlarger (see my post here https://www.largeformatphotography.info/forum/showthread.php?155418-DIY-4x5-Enlarger-with-LED-light-source). I will use the same pole and table...
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I was a hobby photographer since the 80s and after a long break I had started to take analog pictures again. Large format photography was still too expensive for me in the 90s, but always a...
No. You can use a strip as long it has ws2812b LED on it. These are compatible with the library. A neopixel matrix is just more comfortable as the LED are closer together and you don’t need to solder...