Cairo, Future Electronics

Oct-2011

Some shots from the electronics flea market. I took these around 11 when I was done browsing, so a lot of vendors had already left or started packing up.

Robot3 has an IR rangefinder, one of my STM32 development boards and an xbee radio running the new ZB firmware. There's also a small motor controller board hidden inside the old battery compartment as well as a 900mAh lipo. The rear two wheels are driven by one motor which is speed controlled by a PWM output from the STM32, while the front two have another motor on a rack and pinion that steers them and is driven by a simple high or low signal from the STM32.

The car can be manually remote controlled over the xbee wireless link but automatically backs away from detected obstacles. Alternatively it can simply drive forwards until it detects an obstacle, then reverse away.

Development slowed once I got the parts for the somewhat more interesting quadcopter UAV.

Here they are making way for the new spot for Electronics. The picture of it is below.

Hey Paul

maniacbug.wordpress.com/2011/03/10/mouser-sent-me-a-catalog/

Phmeter, oxymeter, spectrophotometer, somethingmeter, and various stuff... Now the real, big question is: WHAT THE F*** WILL I DO WITH IT ?

via Tumblr bit.ly/1cWHnCw Electronics from Amazon:

Samsung EX2F Camera Review,

Samsung UN46F8000 LED HDTV Review,

Samsung UN55F8000 LED HDTV Review,

Samsung HW-F750 Wireless Sound Bar Review,

Samsung BD-F7500 3D Blu-ray Player Review,

Kenwood Excelon DNN990HD – WIFI-EMBEDDED IN-DASH Receiver Review,

Samsung Series 7 Chronos (770Z5E) Laptop Review,

Samsung CLP-365W Color Laser Printer Review,

Samsung DA-F60 Wireless Speakers,

Samsung DV150F Camera Review,

Samsung PN51F8500 PLASMA TV Review,

Samsung KNF559500 LED HDTV Review,

Samsung PN64F8500 3D Plasma TV Review,

Samsung UN75F8000 LED HDTV Review,

Samsung ST150F Camera,

Samsung UN55F7000 LED HDTV Review,

Samsung UN46F7500 LED-LCD Review,

Samsung UN60F7000 LED HDTV Review,

Samsung ST72 Camera Review,

Samsung VG-STC3000 TV Camera Review,

DDR3 64GB LRDIMM Review,

Toshiba 23L2300U 23” LED TV Review,

Toshiba 84L9300U 84” Ultra HD 4K LED TV Review,

Toshiba 65L9300U 65” Ultra HD 4K LED TV Review,

Toshiba 58L9300U 58” Ultra HD 4K LED TV Review,

Toshiba 50L4300U 50” LED

Aircraft grade

Electronics factory workers, Cikarang, Indonesia © ILO/Asrian Mirza

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/3.0/igo/deed.en_US.

Olympus E-500 + ZD 50/2 Macro

Electronics factory workers, Cikarang, Indonesia © ILO/Asrian Mirza

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/3.0/igo/deed.en_US.

Another implementation of the classic two transistor Joule Thief circuit, made entirely with surface mount components.

I have glued the board on to the battery holder just to neaten and finish the project.

Eagle source files and printable etch-resist mask available on request.

The volume knob works!

“최고의 기술로 태양광 시장 선도”

■ 고효율 N타입 웨이퍼 사용으로 기존 제품 뛰어넘는 성능 구현

□ 60셀 모듈 기준 국내 최고 효율 18.3%, 국내 최대 출력 300W

■ 흐린 날씨 등 외부 환경에 따른 출력 저하 현상 개선

■ 국내외에서 친환경 및 기술 우수성 인정

■ 솔라사업담당 이충호 전무 “세계에서 인정받은 최고의 기술력으로 태양광 산업을 선도해 나갈 것”

Electronics Hobby

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Back of bandswitch board, with wires going to the tuning section of the PCB.

via Tumblr bit.ly/19vaPgW Electronics from Amazon:

Samsung EX2F Camera Review,

Samsung UN46F8000 LED HDTV Review,

Samsung UN55F8000 LED HDTV Review,

Samsung HW-F750 Wireless Sound Bar Review,

Samsung BD-F7500 3D Blu-ray Player Review,

Kenwood Excelon DNN990HD – WIFI-EMBEDDED IN-DASH Receiver Review,

Samsung Series 7 Chronos (770Z5E) Laptop Review,

Samsung CLP-365W Color Laser Printer Review,

Samsung DA-F60 Wireless Speakers,

Samsung DV150F Camera Review,

Samsung PN51F8500 PLASMA TV Review,

Samsung KNF559500 LED HDTV Review,

Samsung PN64F8500 3D Plasma TV Review,

Samsung UN75F8000 LED HDTV Review,

Samsung ST150F Camera,

Samsung UN55F7000 LED HDTV Review,

Samsung UN46F7500 LED-LCD Review,

Samsung UN60F7000 LED HDTV Review,

Samsung ST72 Camera Review,

Samsung VG-STC3000 TV Camera Review,

DDR3 64GB LRDIMM Review,

Toshiba 23L2300U 23” LED TV Review,

Toshiba 84L9300U 84” Ultra HD 4K LED TV Review,

Toshiba 65L9300U 65” Ultra HD 4K LED TV Review,

Toshiba 58L9300U 58” Ultra HD 4K LED TV Review,

Toshiba 50L4300U 50” LED

Digital storage adapt0r. This Thurlby DSA524 will turn my 1970s Hewlett-Packard oscilloscope into a 1980s digital storage oscilloscope.

The bandwidth is 5MHz, which will allow me to see the rise and fall of waveforms produced by 1970s digital electronics fairly clearly.

It also has tons of buttons and red LEDs and beeps when you switch it on.

Oh and an interface port that allows you to connect it to a BBC Master Microcomputer.

[edit]

See also: github.com/gordonjcp/dsa524

Vintage electronics components as tree ornaments. Read more about this project here.

Decoders for signals.

Captivity, December 2012

Circuit board.

A Sparkfun accelerometer rigged up to an Arduino which samples it and sends the data to the host computer. Fairly straightforward.

Question: What the heck is PONG supposed to be?

When you're playing it, it feels like the video game representation of some real-life sport. You're bouncing a ball back and forth with another player, which at first glance sounds a lot like like table tennis, AKA ping pong-- and that would seem to explain the name. And yet, PONG is two-dimensional and free of gravity. The ball goes in a straight line, at a fairly constant rate of travel. And you don't play ping pong by rotating a wheel. Come to think of it, it's not a darned thing like ping pong. So what the heck is it?

To answer this, we built this real-life Tabletop Pong game. You can read more about this project here.

Now that I have the satellite internet working, our electronics configuration can be finalized. From top to bottom in the rolltop cabinet, there are two slots for the laptops (which land on the bed if they fall out, thank goodness). Below that is a tall shelf with (left to right) battery charger, XM radio dock for when it's not in the front, the tall blue Hughesnet modem (satellite internet) with the wireless router behind it, and the white cardboard box which contains all the datacard chargers, wires, etc. On the back wall are switched surge protectors so either the TV or the internet stuff can be turned off en masse when not in use, eliminating parasitic drains. Next below that with the blue circle on it is the DirecTV tuner, and on the bottom shelf is the HDMI A-B switch to select input for the TV (Blu-ray player or DirecTV tuner). Lastly, the Blu-ray/DVD/CD/mp3 player is on the bottom underneath the A-B switch. The TV is a 720p Samsung 19 inch model, world's smallest high definition television and only 40 watts, on a swivel mount that allows us to watch in bed or from the seats up front. Black wire hanging down from the TV is for the earphones - comes in handy due to our staggered sleep schedules.

With all those blinking blue indicator lights, at night it looks like the aliens have landed. We have to shut the cover to get any sleep.

Electronics factory workers, Cikarang, Indonesia © ILO/Asrian Mirza

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/3.0/igo/deed.en_US.

Electronics.

Page 13 of Canada at the Century 21 Exposition - Seattle USA 1962.

Electronics Hobby

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Electronics

Electronics Technology

Front row L to R: High School medalists—Silver-Zachary Luick, Orleans Career & Technical Education Center (N.Y.); Gold-Nathaniel Shramko, Whittier Regional Vo Tech High School (Mass.); Bronze-Garrick Jordan, Crawford County Career and Tech Center (Pa.). Back row L to R: College/Postsecondary medalists—Silver-Josiah Carpenter, Nash Community College (NC); Gold-Dan Gustafson, Kirkwood Community College (Iowa); and Bronze-Martin Kay, College of Western Idaho (Idaho).

N8VEM ribbon cable. From left to right, the ribbon cable lines are connected to pins 1 (black), 2 (white), 3 (gray), 4 (purple), 5 (blue), 6 (green), 7 (yellow), 8 (orange), 9 (red), 10 (brown).

Pin 1 on the header is marked by a triangle on the solder mask silk screen, and the pins are numbered 1, 3, 5, 7, 9 on the bottom row (toward the components), and 2, 4, 6, 8, 10 on the top row (away from the components)

Also in production is the inflatable balloon catheter, which is inserted in a vein in the leg and travels to the interior of the heart, so to avoid open heart surgery.

Electronics Hobby