View allAll Photos Tagged Microcontroller
trying some macro...
old beroflex AF 35-70mm lens from an old minolta dynax 3ix cam. as i don't have any adapter on my e-mount, i used some piece of toilette paper roll :).
proceed in darktable
Well I know, my soldering is awful. It took a while to get this microcontroller to work, 4 days to be exact. Now it works as designed.
SDIM2222
The basic tutorial is complete and can be found at:
mrossphoto.com/wordpress32/neopixel-ws2812-dlw/
Enjoy!
Prototype of a Bluetooth LE controlled lights and train switch.
Here using a BLE microcontroller HM-10 to control 6 LEDs and one PF motor.
The motor and lights are driven by 2x DRV8833.
Using two wire signal lights, where the red and green LEDs are wired in reverse parallel.
The app is made with MIT App Inventor.
This solution is being discontinued. Will replace the HM-10 by a nRF52832 with much more autonomy.
This controller and DRV8833 are all few dolar/euro components!
Getting MUCH closer! Phil Wright sent me a new version of his program today with some tweeks in the color area and it is so close that I HAD to post this! This is close enough to my goal that I would have to say that it is met! Of course there is always room for improvement but just how close one can get using a programmed strip of RGB LED lights? I think not MUCH closer... but still possible I guess. ;-)
Light Painting - Single Exposure
The results of a DIY project writing custom code for a Node MCU micro-controller to control addressable LEDs.
Messing around with the Dual LPD8806 Light Strip. Created using Phil's Digital Light Wand Code Generator program.
Light Painting - Single Exposure
they would pass on the "Take us to your leader" thing! ;-)
Light Painting - Single Exposure Photograph
Digital Light Wand
“Claremont Road” has five Arduino UNO microcontrollers which control train movements along with PWM (servo adapted) points/turnouts, and signals according to pre-written programs or “sketches”. This is a completely different concept from DCC.
The master co-ordinating UNO gets feedback from the track through 14 enbedded infra-red proximity detectors,
Slaves 1-3 are UNO “train drivers”,
Slave 4 handles the display and lights. The orange display shows the current mode and commands being passed between the UNOs via a short-wire protocol known as I2C.
2 drops into xanthan gum mix, some blue ink and a little Dettol kitchen cleaner.
I decided to have a go at a mirrored thingy in post process once I had removed the usual stray splashes and a little mess on levels.
Looks like the fun and games are over for Pacman! ;-)
(Here ya go Carrie! ;-) )
Light Painting - Single Exposure
Testing the new LPD8806 Strip for color range! 2 MILLION COLORS!!!! MUCH BETTER than the HL1606 limitation of 9 colors! Now to work on the resolution! ;-)
Once again using Phil Wright's Fantastic Custom Digital Light Wand Code Generator program which he quickly adjusted for use with this specific strip! Thanks Phil!
Light Painting - Single Exposure
Tonights wonky Donkey 4 drop splash of orange dyed liquid into a green dye base liquid. The wee box is certainly doing what I built it for.
Explored. July 19, 2013 #143
A 2 drop collision into a glass tray of cold water. Colours come from a few drops of ink in the tray and a light blue gel on the flash which is behind a piece of 5mm frosted glass.
Taken using the Canon 100mm f2.8 macro lens.
Settings:
Shutter: 1/200
ISO: 200
Aperture: f/16
Speedlite: 1/16
I wanted to post a shot of this again for a few reasons.
First of all, I wanted to make sure that everyone knows that the Tutorial to make this is still in it's original location on my website and you will find the videos there as well as on YouTube. I had removed the tutorial from the group that I left a few days ago and there was concern about the links to the tutorial being removed so here it is! :-)
The second reason is that I may have some really exciting news coming up regarding this tool! I can't really say much about it yet, but if everything goes as planned, then Light Painting in general will be in front of millions of people and I am SUPER exited about that!
Also.. just a note... From here on out, I will be placing links and photos to any of the tutorials and tools that I have created on my profile page and also in my Tools and Tutorial Sets as well as on my website! Just wanted to make sure everyone knows where they can be found! :-)
LET THE LIGHT SHINE!!!
Oh! One more thing! My email box runneth over at the moment and I am trying to get caught up with them all but it may take a day or two! ;-) Thank you everyone for your support! :-)
Cameron and I took a short trip to Frisco, Texas which is the home of this beautiful old steam engine, complete with coal tender and caboose! Owned by the Heritage Association of Frisco, they have plans for a much larger Railroad museum in the future! I can't wait! There was a lot of ambient lighting around but we did our best to make it work. :-)
Light Painting - Single Exposure
“Claremont Road” has five Arduino UNO microcontrollers which control train movements along with PWM (servo adapted) points/turnouts, and signals according to pre-written programs or “sketches”. This is a completely different concept from DCC.
The master co-ordinating UNO gets feedback from the track through 14 enbedded infra-red proximity detectors,
Slaves 1-3 are UNO “train drivers”,
Slave 4 handles the display and lights. The orange display shows the current mode and commands being passed between the UNOs via a short-wire protocol known as I2C.
The Burninator!!! Vs CAMERON... THE BURNINURNINATOR!!!
Yes!!! That is THREE Exclamation points!!! ;-)
Some of you may know this character! For those of you that are not familiar with who this is Click Here
Yet another test of the 96 LED, meter and half strip using dual LPD8806 strips. Still need to work on the diffusion a bit but it is slowly starting to take shape.
Once again using Phil Wright's Fantastic Custom Digital Light Wand Code Generator program! We ran into a little problem with the Arduino compiler and Phil figured out that it had a problem with three Exclamation points together in the strip program! So after a minor adjustment, it worked like a charm! Thanks once again Phil! !! ;-)
Light Painting - Single Exposure
Time travel has always fascinated me! Just the thought of the endless possibilities that exist within the realm of being able to travel to another time can keep my brain busy for hours! What would I do with that power!? I have thought about it enough that I know there are a few things I would do for certain! But wow! Talk about literally opening up a world of possibilities! Serveral worlds actually! ;-) What would you do if you could travel back or forward in time!?
This is a new tool I have been playing with that uses a different type of Addressable RGB LEDs than I have used in the past. Still trying to learn it's capabilities. It uses an LPD6803 chip in the strand instead of the other chips I have used in the past such as the HL1606, LPD886, and the WS2801.
Light Painting - Single Exposure
High resolution X-Ray of the Raspberry Pi Pico microcontroller, launched on 21 January 2021.
At the top is a view of the whole board, which is roughly 51m (2") long. Below that is an even higher resolution view of the processor chip. The actual silicon chip - 2mm x 2mm of sandy goodness - is the small square in the middle.
A note on the physical construction of integrated circuits: the silicon chip is fragile and you can't solder to it. The chip is therefore stuck to a metal 'base plate' and surrounded by carefully shaped fingers of metal that together are known as the 'lead frame' - that's lead as in cable, not as in heavy metal. The big ends of the fingers form the pins of the IC package. The thin ends are as close together as possible, though still far too big to physically connect to the silicon. Tiny, incredibly thin metal wires (known as 'bond wires' and made from gold or aluminium) are ultrasonically welded to the fingers and to specially-prepared areas on the chip, thus providing an electrical path from the chip to the outside world. Finally, it's all surrounded by a precision-moulded plastic case.
In the lower part of the image you can clearly see the fine bond wires that go from the silicon out to the leadframe. The tiny dots on the wires at the chip end are microscopic balls, formed when the wire is ultrasonically welded to the chip's metallisation. I estimate that the wires are about 20µm thick (0.02mm) and the pads on the chip are about 65µm apart, or roughly the width of a human hair. I said this was a high resolution X-Ray!
This image is not public domain but is available for re-use under the Creative Commons Share-Alike licence - basically you can do anything you like with it, for free, provided you give me a credit ('Ultrapurple' is fine), and ensure that any derivative works are given a similar licence compatible with the requirements of CC BY-SA 2.0. See creativecommons.org/licenses/by-sa/2.0/ for full licence details.
Feel free to comment - and let me know if you re-use the image!
Created with the version of the Digital Light Wand! 1.5 Meters and 216 pixels! It is made using the 144 pixels per meter NeoPixels strip.
This picture was taken with no diffuser over the LEDs like I have used in the past with previous versions of the DLW and there are two noticeable lines where there is extra spacing between the LEDs at the strip solder points. There is also noticeable pixelation of the angled lines. I have some Aluminum LED profile mount with a diffuser on the way to test to see if it will help smooth out and cure these lines.
I built this with components from openbuilds.com/ .
I still need to replace the t8 8 pitch lead screw with a t8 1.25 pitch for better precision. Then I'll add a stepper and simple microcontroller to turn it into a unit essentially identical to the Cognisys StackShot.
USB Interface for SHARP PC-140x Series (sketch)
You will find more infos about this project on my blog:
Last night I had the pleasure of meeting up with a group of folks with Arlington Camera and attending and helping with a Light Painting Photo Walk they put on! There were people of all ages there! Some with experience, some without! But we ALL had a fantastic time! There was talk about going back and leading an advanced LP class in the future and I was also asked about getting together with a photography club as well! Looking forward to spreading the word about light painting even more!
LET THE LIGHT SHINE!!!! :-)
On another note... A new door opened and another one was closed and that is just the way things are sometimes. I decided yesterday that I was no longer going to be a part of a specific Light Painting group on Flickr due to a few egos running the group and thinking that they can make decisions on who does what with Light Painting and tutorials regarding Light Painting techniques and tools. It is really a shame to see but that is the path they choose and I simply do not agree.
This is a 2 drop, mid air collision in cold water with food dye. Colours are from lighting up a piece of card behind the perspex background.
www.LightPaintingTools.com is officially OPEN FOR BUSINESS!! :-) Going to offer all sorts of custom made light tools for Light Painting Photography mainly for those that are not the DIY type. Or those that just don't want to be the DIY type! :-)
Would love to get some feedback on the website! :-)
Light Painting - Single Exposure
The Arduino Yun microcomputer - Technology for Macro Mondays!
(For those who understand such things (and I don't) the Arduino Yun is a microcontroller board based on the ATmega32u4 (datasheet) and the Atheros AR9331. The Atheros processor supports a Linux distribution based on OpenWRT named Linino. The board has built-in Ethernet and WiFi support, a USB-A port, micro-SD card slot, 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, an ICSP header, and a 3 reset buttons.The Yun distinguishes itself from other Arduino boards in that it can communicate with the Linux distribution onboard, offering a powerful networked computer with the ease of Arduino. In addition to Linux commands like cURL, you can write your own shell and python scripts for robust interactions. The Yun is similar to the Leonardo in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Yun to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.The Bridge library facilitates communication between the two processors, giving Arduino sketches the ability to run shell scripts, communicate with network interfaces, and receive information from the AR9331 processor. The USB host, network interfaces and SD card are not connected to the 32U4, but the AR9331, and the Bridge library also enables the Arduino to interface with those peripherals.)
Rainbows will come to you! :-)
This was from my trip to Florida and night I met up with Duane Schoon on the beach in Sarasota, Florida. My "niece" was super excited when a rainbow landed right in her hands! ;-) It was an awesome meet up! :-)
Light Painting - Single Exposure
A much neater splash than the last one.
Starting to get the hang of my own little drop controller now. Took me a while, even though I built the thing myself and wrote most of the coded menus for the controller chip.
Water/Xanthan gum mix with bright orange and electric green food dye in the drop and base liquid respectively.
Only the usual stray splashes and bubbles, levels and contrast etc have been touched post process. Slight crop vertically only.
---------------------------------------------------------------------------------
f/18, ISO-200, 2x Yongnuo YN560 speedlites @1/32.
Taken in bulb mode on controller and camera.
er.... I mean Floydfest!! ;-)
This is all a single exposure... SOOC.
Made with the New and Improved, home made, Multi-Program, Microcontrolled, RGB LED Light Strip
Well, that's me all purpled out. Moving on to more colours next session.
This one is a much neater looking shroom than before. Taller and more level.
2 drops into water with a couple of additives. Colours are from red ink in the water bowl and the same in the drop reservoir. There is also a blue gel on the flash which gives the purple colour to the splash.
Settings:
Exposure - 1/200sec
F-stop - f/16
ISO speed - 100
Speedlite - 1/32
--------------------------------------
H-21, D1-50, P1-80, D2-80, CD-189
The results of a DIY project writing custom code for a Node MCU micro-controller to control addressable LEDs.
This is my first attempt for a while now. I've had a bit of a time of it lately. I finally got the controller finished off. Some menu tweaks and another addition have kept me at it for a while now. One thing left is to add my macro lighting system to it to control lighting while doing drops and we are totally done.
This is 2 drops into cold water with a food dye.
Pink card is behind the perspex background lit with 2 flashes.