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Quite a few lines of newly-learnt assembler later, the ARM can now read in the image data perfectly and send it out to the LCD over SPI in real time! It looks even better in person but the photos are okay - colours are great and it's refreshing as fast as a mobile phone camera now, though I'm going to see how fast I can take it!
Success at last! The final step was telling the compiler I clobbered r6 to hold the address for the data - before that, it just sent random noise to the thing! One little "r6" and the thing worked perfectly.
A schematic diagram for an upcoming project: a crystal set receiver based on the Australian "Mystery Set" designed in 1932 (it's called a "Mystery Set" because the tuner is an incomplete circuit and yet, performs better than a "correctly" designed set). The set will be housed in a wooden box with a lid with lock and key (in the style of an old English crystal set) and a dummy crystal detector for looks only (the actual detector will be a 1N34 type germanium diode). This radio will also have a band switch for longwave, medium wave (standard AM broadcast), and shortwave. Note the use of inductors in series and parallel combinations, and the use of a second detector diode for the signal strength meter. See www.flickr.com/photos/14275763@N08/24133301200/ for photo of some of the parts.
Note: To cover the European LW broadcast band, use 230 turns on L2.
From some t-shirt scraps, I sewed a pocket to hold the arduino and battery. I added snaps to the pocket and snaps to the back of my dress, so that I could hang the arduino from my clothes. This way, I could plug all the wires into the arduino and be sure they were in the correct pins, and secure them with some tape; put the arduino into the sock; and ask my co-worker, when it was time for the party, to simply snap the sock to my dress--easy.
Similarly, the switch for the red eyes is connected with snaps. Wires (that plug into the arduino) are soldered to the female halves of the metal snaps. The male halves are sewn with conductive thread to my dress. (Conductive thread! Yes!) The conductive thread runs inside my dress, down to my hip, and terminates in two safety pins. I threaded it inside bias tape to prevent the two threads from touching and causing a short. When the arduino wires are snapped to the conductive-thread snaps, the arduino is connected (conductively) to the safety pins. When I touch the safety pins to each other, I close the circuit, triggering the red-eye effect.
Photos from our craft room. This is a dump of photos from my phone. Many may be duplicates or similar angles.
Layout drawing for arduino-controlled automaton head and practical implementation inside wooden base unit.
February 2012
For more on this, arduino stuff and other daft things see the "Making weird stuff" blog
Snapshot from the third issue of my webseries "Bleeping Relics" about the 1978 Handheld "Soccer", manufactured by Mattel Electronics.
Watch the episode here:
www.youtube.com/watch?v=xABfSvcbLwA
Shot with a Pentax K-5
Experiment in drawing moving vector dots on a video vectorscope using an FPGA to synthesize a chrominance signal (using only the luminance channel) that is slightly off the colorburst frequency, causing the rotation. The synthetic D1 video signal is sent to an encoder chip to create the analog video signal.
I took several photos of the Tamiya Twin-Motor Gearbox for a review I wrote a couple years ago, this is a photo that wasn't used.
Микросхема динамической памяти, 1 Мебибит (220 бит). Использовалась во времена 286 и 386. Размер кристалла — 8662x3969µm.
If using this image please attribute to "Kitmondo TAM" - www.kitmondo.com/test-and-measurement-equipment
Images from listings on our website Kitmondo.com in the Test and Measurement section. See a range of Test and Measure equipment from across the globe on our site.
For years, I have purchased Apple products from Small Dog Electronics because they were recommended by my daughter Jessamyn. They turned out to be as helpful as she said they would be. However, I had never been to the store before this week. Everything had been done online or by telephone. Yesterday I finally had the chance to visit the store in person. They were really great--good service, unintimidating, and helpful. I refrained from telling them that my brother was now the new voice of Apple products online, because I didn't know the ads had started to run yet, but they have.
The "Wheelwriter" 1984. One of the last models before the computer/word processor took over. The old Speakers Office in Old Parliament House
The Collins KWM-2 is a high quality amateur band transceiver featuring CW, LSB and USB modes. Frequency ranges: 3.4-3.6, 3.6-3.8, 3.8-4, 7-7.2, 7.2-7.4, 14-14.2, 14.2-14.4, 14.8-15, 21-21.2, 21.2-21.4, 21.4-21.6 and 28.5-28.7 MHz plus 23 additional 200 kHz positions for 28-29.7 MHz. Power input is 175 watts PEP on SSB, 160 watts on CW. Power output is 100 watts PEP nominal (slightly lower on 10 meters).
and end up with a 4 digit nixie clock using NL-5440A tubes. Used the same circuit and code as the other 4 digit clock from bruno.netstrefa.com.pl/radio/projekt/nixieclock/index.htm
I've had this iPod since the Nano's first came out. I can honestly say that an iPod is one of the best investments I've ever made. I've used it in my car, in my iPod alarm clock and stereo, and take it with me when I go walking or jogging. It gets used the most in my car; I just set it to Shuffle and let it play whatever.
Every summer, if I park somewhere that the sun will be shining onto my car, I take the iPod with me so the heat doesn't damage it. However, this year I've started listening to NPR, so I haven't been taking the iPod out of the car (I forget it's there if I don't use it). When I finally went to use it, I noticed the silicone cover on it was askew. When I picked it up to fix it, I realized that the iPod was literally split apart. Upon closer inspection, I saw the problem. There is some silver pouch inside that has blown up like a balloon, no doubt because of the heat. The pressure from the pouch has pushed the top and bottom of the iPod apart. It still works, but I was hoping if I took it into some air conditioning, the balloon thing would deflate, but it hasn't.
Hopefully it won't burst and kill me or something. I have another iPod that I got for free (long story, but not really) that I can use, but this one still saddens me! I'm so curious, too. I want to pull the thing apart and pop the bubble, but I'm trying to leave it alone, as I'm pretty sure it'll stop working if I take the case off, the only thing holding it together....
Sony cordless telephone with digital answering machine, 1998, used and donated by Herb Brosz of Aberdeen.
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