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This rat's nest is the shutter electronics, on the blue board, and the photodiode amplifier on the white board. I'm using a Raspberry Pi Pico, which I can cope with more easily than the PIC 12F675 controller specified in Frans' design. Also, at £3.60 I couldn't resist getting this device to play with. Otherwise the shutter driver electronics are exactly as his version. At the moment there is no provision for the rangefinder or flash control, it's just the shutter driver.
The main circuit is built on a Raspberry Pi Pico breadboard, which is great for prototyping. The extra lights and switches were very convenient for debugging the circuit and software. Intention: ultimately a pcb with Fritzing.
I'm developing the software using the Thonny IDE with micropython. With this I can use assembler for the PIO state machines to get precise timing. The current code is not optimal in that respect but I can see that when I start working on the flash trigger, precise synchronisation with the shutter open time will be essential. I intend to make the code and other details of the project available on my GitHub account.
Buttons and shift resistor chip added to the Danger Shield.
[Accompanying documentation posted at http://kodama.angrypixel.org/2010/07/danger-shield/]
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This photo recorded March 10, 2020, after visiting Space Center Houston. We've driven past this Fry's Electronics half a dozen times in recent years and I kept promising we'd stop and get a photo, so I finally did.
The graphics card is a peripheral that plugs into the motherboard. It sends signals out to the monitor to represent what should be shown on the screen, processing graphical tasks on your PC and unloading a tremendous burden from your PC.
Dirty Electronics Mute Synth custom modified by A.S.M.O. for Daniel Miller (The Normal / Mute Records).
Touch panels hardwired to pots and switches, 3 LFOs, one for each oscillator and feedback.
Low / band pass resonant filter with external voltage control input, self oscillates at full resonance.
Panel is covered in (warm) leatherette, nice!
A shot of the component side of my Octave Fuzz from BYOC.
I'm not getting any output, so I'm hoping some helpful members of the BYOC forum can help me troubleshoot.
190502-N-SS350-0163 IONIAN SEA (May 3, 2019) Aviation Electronics Technician Airman Isaac Zichko, from Post Falls, Idaho, assigned to the Grandmasters of Helicopter Maritime Strike Squadron (HSM) 46, secures an MH-60R Sea Hawk helicopter aboard the Arleigh Burke-class guided-missile destroyer USS Bainbridge (DDG 96). Bainbridge is underway as part of the Abraham Lincoln Carrier Strike Group (ABECSG) deployment in support of maritime security cooperation efforts in the U.S. 5th, U.S. 6th and U.S. 7th Fleet areas of operation. With Abraham Lincoln as the flagship, deployed strike group assets include staffs, ships and aircraft of Carrier Strike Group 12 (CSG 12), Destroyer Squadron 2 (DESRON 2) and Carrier Air Wing 7 (CVW 7); as well as Ãlvaro de Bazán-class frigate ESPS Méndez Núñez (F 104). (U.S. Navy photo by Mass Communication Specialist Seaman Jason Waite/Released)
Anaheim, CA, August 14, 2015.
NOTE added 3/4/2021: This Fry's Electronics store closed on March 2, 2020. All remaining Fry's stores were closed on February 24, 2021.
Velleman PMK 111 INTERVAL TIMER
A new generation of cheap lightweight plastic electronic technology that does not require silicon, but which is optically transparent and can be coated onto everyday objects would transform our world.
"Working collaboratively with industry is not only satisfying in that I see aspects of my work translate into real engineered products, but it provides inspiration for new avenues of research too. Roadmapping then allows me to critically assess how I should be developing my research portfolio and engaging with industry to maximise the likelihood of productive collaboration."
—Dr Andrew Flewitt
Imagine electronically updated food labels, computers embedded in our armchairs, even contact lenses linking us directly to the Internet to bring us into the age of plastic electronics. In this video podcast Dr Andrew Flewitt and Dr Robert Phaal both from the Department of Engineering and Scott White serial entrepreneur and CEO of Pragmatic Printing talk about the creative partnership forged between different parts of the Department of Engineering and outside companies that enable the technology and research in this area to be exploited successfully.
Dirty Electronics Mute Synth custom modified by A.S.M.O. for Daniel Miller (The Normal / Mute Records).
Touch panels hardwired to pots and switches, 3 LFOs, one for each oscillator and feedback.
Low / band pass resonant filter with external voltage control input, self oscillates at full resonance.
Panel is covered in (warm) leatherette, nice!