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Part II - Building a F-STOP Darkroom Timer
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- เผยแพร่เมื่อ 17 ส.ค. 2024
- The goal of the darkroom timer build is to make it without much fuss, it’s inexpensive and accessible to anyone with basic knowledge.
In this part, part two we tackle the Arduino IDE and uploading the code then the relay, and the electrics. I even test it out to see if everything is working including the strip test with my office lamp. In part three we should be ready for the darkroom.
If you haven't already read part one, please do check it out, then things maybe a bit more clearer. • Part I - Build a F-ST...
Chapters:
0:00 Introduction
2:28 The second board
3:18 Powering the power
4:35 GPIO pins
5:16 Arduino IDE Install
5:54 Download Source Code
6:25 Compiling the code
7:49 Uploading the code
8:50 Display Disfuser
9:29 Wiring up the power
10:16 Testing the board
11:33 Conclusion
Darkroom timer are simple but don’t work the way they should. At least time based ones they are linear. Photography isn’t linear. F-Stops are logarithmic, i.e twice the light or half the light through the lens aperture. The enlarger is essential a camera in reserve. This easy to build darkroom timer will not only show exposure in time but it also display in F-Stops.
F- stop printing was originally made popular by the award winning printer Gene Nocon in 1987. If you want the full explanation, you can find it in his book Photographic Printing (now out of print, but available on the second hand market), or you could take a look at this interview with him.
PURCHASE ON ETSY - DARKROOM TIMER KIT
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Just ordered the parts. This is a great design in that it is so simple to assemble. Will try and resist the urge to tinker with it as that would eat into the little time I have for printing. Though I must say some day I too would probably change it to use rotary encoders and wire in a foot switch. Thanks so much for publishing this.
In part III the case would have room for a rotary encoder. .th-cam.com/video/lNToAVy6heQ/w-d-xo.html. Thank you for your kind comments Gavin
this will be a perfect solution, I should make one!
I hope so, would love to see it. I'm hoping to 3D print the enclosure this week.
SLF fan myself and still got Inflammable Material on vinyl. Dog ate the corner of my Nobody's Hero album cover but the record still plays just fine, mind you.
Anyway, fascinating project Gavin. Thanks.
Thank you! SLF classic stuff !
This is amazing! I've been toying with the idea of trying to build one of these lately,so your videos come at the perfect time for me.
I'll probably build it exactly as you do,but i may want to add rotary encoders down the road for tactile reasons. I've always used a GraLab 450, so working in a dark room feels like it needs knobs rather than buttons.
Hi Patrick, thank you for your kind comments. I'm working to finish the third part of the video. Just the heatwave in Graz has slowed me down considerably. In the next part, I'll have a 3D print for the enclosure, buzzer and some extra features. The enclosure will have room for a rotary encoder too btw
@@GavinLyonsCreates this is truly exciting stuff. I've been doing f-stop printing manually for a couple of years now. This is going to be so handy. I really appreciate the work you have put into this!
Esp boards are not present by default, so for anyone that wouldn't know how to instal, here is a link to video explaining it th-cam.com/video/_iX67plFeLs/w-d-xo.html
like it!!!!
Rockwell ? No ?
Hi Gavin, interesting project. Any particular reason for the change to the ESP controller other than the 230 v part including the relay?
Nothing at all, just wanted a solution that was simple and with the littlest amount of soldering to do. I'm not sure if there's an Arduino relay and power board equivalent probably is but the ESP 12 relay board is about 20 bucks .
@@GavinLyonsCreates Thank you - in my limited experience with Arduino I have not seen any board with integrated relay and 7 or pwr circuit. I have used external relays for my builds. I think I will order some parts and give it a try :)