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Here are some crude pieces of the electronics I need to put together to run the tennis ball machine I'm building. This is all experiment/prototype stuff. The white "breadboard"on the left is just using a voltage regulator circuit for 5v (componnents on upper left) and the Atmega16 microcontroller (large chip), which generates the PWM signal. The microcontroller is also connected through the breadboard to the LCD at the top. The rest of the stuff on the white board is left over from various tests. The board on the right is the "power" portion of the PWM motor controller. It takes the PWM signal from the microcontroller, and uses it to switch on and off a pair of MOSFETs (via a driver chip) to provide power to the motor. The MOSFETS are in parallel to increase power capacity, although I'm not sure more than one was really needed.
This was a kit Lafayette introduced in the early 60's. A built version was called the HE-30. Radio was actually manufactured in Japan by Trio, which is now Kenwood.
Board combines a Quectel M10 GSM module and an Arduino-compatible microcontroller (ATmega1284P), along with circuitry for battery power. Based on the Arduino GSM shield.
More here: web.media.mit.edu/~mellis/gsm/
Wanted to show the detail in a PCB and originally get the detail in the circuit with the solder but after looking at the different angles this is what I ended up showing the components at the same time with the reflection in the solder as a bonus because that was the shot I wanted. Happy with the end result.
Store closed September 2017
Malone, NY. October 2016.
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First major change to this system in several years; I swapped out the 'old' lcd display with this 'new' LED backpack module. It uses 4 alpha-capable led characters and I chose to buy the classic red color (works very well behind red plexiglass bezels).
Most of the circuits are all on production green-boards but the front panel is new and so its a perf-board work-in-progress. There are 3 buttons on the left and those control the volume in fast large-jump movements. The rotary encoder on the right moves in smaller 1dB increments. The display shows native dB from -99 up thru 0 (0 is no attenuation or maximum 'volume').
What is also very new, here, is that I removed IR (direct) control and went with xbee/zigbee modules for rf packet radios. These are two-way (IR is one-way) and lots of things can easily interface with xbee (being simple ascii 9600 baud over TTL signaling). With xbee in place, I can have a computer control this preamp and even display 'text' on the front panel LEDs.
More background on the alpha 10 preamp: www.amb.org/audio/alpha10/ (I'm the designer of the LCDuino, the delta1 and delta2 audio control elements).
photo from alternate angle: www.flickr.com/photos/linux-works/18456995428/in/photostream
view with full chassis dress: www.flickr.com/photos/linux-works/18622950416/in/photostream
A Mitakon 24mm f2.5 lens with Nikon F-mount and AI. Part of a bag of old bits I bought cheap on e-bay. One inner element was rather hazy but I was able to unscrew the rear element set to get to it and give it a clean and all looks good now.
I shot this photo with another lens from the bag of bits. A rather abused Vivitar series 1 70-210mm f3.5 with fungus, dust, dents and a scratch in the front element. I cleaned that up as best I could - I've never taken a lens apart before :). The lens was in macro mode, manually focussed, aperture set to F9.5 and with a fairly slow shutter speed (1/11s I think) triggered with a remote and I've added fill-light in Bibble as it was a bit dark.
Wellsville, NY. February 2019.
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Nur 187 g wiegt dieses Zoom. Aber Gewicht muss ja nicht unbedingt etwas mit der Qualität zu tun haben :-)
Immerhin kann man im Macro-Modus bis 35 cm ran und die Kamera wird bei Verwendung dieser Linse nicht wesentlich schwerer.
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Late 70's goodness - a simpler version of the much more popular AE-1.
This could be the only SLR that one would ever need.
I'm selling my beloved Alienware M11x R1. It has a brand new hinge, LCD and lid replaced by Dell which has no scratches or damage. I have always kept it in my padded laptop bag with soft cloth between the keyboard and screen when closed. Everything works as it should and it runs well. The rest of the body is in used, but good condition. There are various small marks and scratches associated with age. The blue keyboard lights were not working when I bought the computer, which is a common problem. So i used a piece of ribbon cable and made a shim to place under the keyboard to keep the connection tight. It comes with an Alienware Windows disc, some documentation and the original AC adapter. This has been a great little notebook for me, and I took pride in keeping it up and replacing things when they were broken. It has 4GB of RAM, and a 160GB HDD.
My local Kmart will be shrinking starting in July. The store is one of supposedly 60 test stores to try a new strategy to increase sales by putting the entire store on sale.
Marshalls and other unannounced tenant(s) that will make for a 45,000 sq ft project. Interesting thing here is that the Kmart store will still be around 73,000 Sq ft rather than the 59,000 that would of been half the store. In other words, the store will still technically occupy more than half of the building.
The project is expected to be complete in Q2 next year. Hopefully this project will not turn around and cause this store to close completely as the Anderson, SC store did. Whatever happens, I'll be sure to send picture updates when I can.
Olean, NY. May 2017.
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Still works! My smartphone from 2004!
After some talk about the new Blackberry, I pulled this out of the bin. Made by PalmOne (Palm Pilot and before that 3Com). The keyboard was licensed from Blackberry.
Palm is regarded as having the first useable smartphone. This is a Palm Pilot + phone. It was (is) awesome!
Manufactured by Miranda Camera Co., Tokyo, Japan
Model: 1966, type 1
All Miranda Sensorex produced between 1966-1972
as to Miranda Camera Co
35 mm SLR film camera
Lens: Auto Miranda 35mm f/2.8, in 5 groups 6 elements, fully automatic diaphragm coupled to TTL CdS exposure meter, w/ diaphragm setting and DOF preview levers, interchangeable, Miranda bayonet mount, filter thread 46mm, serial.no.2222339
Aperture: f/1.9 - f/16, no click stops
Focus range: 0.3-5m +inf.
The lens mount also has 44mm inner screw for Miranda 44M or other screw mount lenses via adaptors
Lens f number selector dial: settings between f/I.4 - f/8 , on left front side of the camera
Lens release: While pressing the lens lock lever on the right side of the lens barrel, turn the lens counterclockwise l/8 of a full turn. When the red dot on the barrel stops at the red line on the camera body, the lens comes off easily.
Focusing: by multi-microprism screen center, ring and scale on the lens, w /DOF scale
Shutter: cloth, horizontal focal plane, speeds 1-1/1000 +B, red marking of flash sync.1/60
setting: by a knob on the winding lever
Shutter release: on the left front of the camera, close to lens mount, w/cable release socket
Film counter: advance counting, auto-reset, left side of the pentaprism on the top plate Cocking lever: also winds the film, retractable, short strokes, double exposure prevention, on the right of the top plate
Film winding indicator (shutter cocking): red: cocked, white: not cocked; beside the cocking lever
Mirror: Instant return
Viewfinder: SLR Pentaprism, interchangeable, (but not screen), no parallax (difference between the area covered by the viewfinder and by the taking lens)
Vievfinder release: by small silver button on the back of the top plate, slide the knob to left and slide the finder to backwards
Exposure meter: CdS meter, TTL, bottom-weighted average metering (eliminates the light-influence of the sky), fully open aperture light reading
Exposure setting: firstly set the desired speed, set film ASA, set the lens selector dial for the lens on the camera, and turn on the meter switch, then turn the aperture ring until the needles (one is in open C shape) match in the viewfinder, (indeed these needles are on the screen)
ASA setting: 25-1600, window on the speed dial; setting: by lifting and turning the outer ring
On/Off switch: near the re-wind knob ,
On/Off indicator:, small window beside the "Battery" stamping, on the flash synchronizer selector ring on the bottom of the re-wind knob
Re-wind lever: knob with collapsable crank
Film rewind release button: on the bottom plate of the camera
Flash PC socket: left side of the camera
Flash synch: FP (flash bulbs focal plane) 8t, X 1/60t, setting via flash synchronizer selector ring, small window beside the "Flash" stamping, on the bottom of the re-wind knob
Self timer
Back cover: hinged, w/ double safety self-locking device; detachable
Tripod socket: 1/4''
Strap lugs
Body: metal; Weight: near 1000gr
Battery: only for lightmeter, Mercury 1.35v PX625, (accepts PX625A / LR9, but better is 1.35v Zinc/air)
Battery chamber: on the left back of the top plate
serial.no.705778
w/ case and old leather strap
Miranda Sesorex is a system SLR camera with a wide interchangeability of both viewfinders and lenses. It is TTL progression from the Automex models in 1967.
There are seven almost-the-same but distinct versions of Sensorex.
There are two very peculiar features in Miranda: the interchangeable prism (the Nikon F was the only other camera at the time with this feature), and the front-mounted shutter release.
Low noise shutter and vibration-free mirror mechanism.
After removing the pentaprism, the camera is fully functional, can still meter and focus, especially handy for close-up work.
Sensorex was the flagship model at that time. Miranda was apparently the first Japanese SLR manufacturer, and for a time, Miranda used to compete with Nikon and Topcon for build quality and optics.
The Miranda was also sold as Soligor in Europe.
The Miranda Camera Company, originally named the Orion Camera Company, manufactured cameras in Japan between 1955 and 1978. Their first camera was the Miranda T. Unlike many Japanese made cameras, Miranda did not make their own lenses and had to rely on other manufacturers to supply them.
Many Miranda SLRs had advanced or sophisticated features for their day. Almost all Miranda SLR's shared the same basic lens mount, but the mount complexity increased over the years to accommodate more aperture and metering controls.
Unable to keep up with the increasing manufacturing automation of the larger manufacturers, and the increasingly sophisticated electronics of competing cameras, Miranda ceased producing cameras.
More info: Miranda Camera Co ,
in J Ollinger Camera coll , Miranda in Wikipedia, Manual in Butkus org, Karen Nakamura, Miranda in Camerapedia
Workspace after adding shelving and moving all the junk from upstairs.
Timelapse of building this workspace from scratch: youtu.be/ylsPUIXqirk
I spent the 2.5 months in 2012 finishing this space in what used to be an unfinished corner of my basement. Now LowPowerLab.com runs from here :)
I know I pissed off a handful of Canon diehards with my switching to Nikon shot the other day. And now...I'm probably going to piss off all of my Nikon contacts.
It was all a hoax people!
C'mon...me switch to Nikon?!? Yeah right! Let's get one thing straight. I will never...I repeat...never...switch to Nikon Not in a million years. I'm crazy....but I'm not that crazy. Sorry to disappoint you Nikonians. I'm a true Canon diehard. You'll never get me to come to the dark side. The force is strong with this one. :)
Panasonic Lumix DMC-FZ200 12.1 MP Digital Camera with CMOS Sensor and 24x Optical Zoom. Read Full Review
This is my old SLR camera: EXA 1c made by Praktica in Dresden, DDR. I bought it in summer of 1987 in Dresden, for about 500 Marks, East German currency, but quite expensive for me then. No electronics at all in it, just mechanics and optics. Lenses signed: Tessar 2.8/50 Carl Zeiss - Jena. At that time I did a lot of slides shots with it, but now I didn't use it in last 4 or 5 years.
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