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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.
Extracted from a R-392 paratrooper radio set. Of course it was a damaged one, I have several of these sets.
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.
■ 보급형 라인업, 작년보다 두 달 먼저 선보이며 선제적 시장 공략
■ LCD 디스플레이 가장자리를 둥글게 마감해 입체감 살린 프리미엄 디자인 구현
■ 고성능 카메라, 셀피 전용 UX 등 ‘G 시리즈’의 프리미엄 사용자 경험 제공
■ ‘인셀 터치 (In-cell Touch)’ 방식의 디스플레이 적용해 향상된 터치감 구현
■ MC사업본부장 조준호 사장 “K 시리즈는 프리미엄 디자인과 성능을 합리적 가격으로 경험할 수 있는 제품군”이라고 강조
※ Social LG전자 (social.lge.co.kr/newsroom) 에서 관련 보도자료를 확인하실 수 있습니다.
currently have the leds working and being controlled by puredata (http://puredata.info/). Only one of the leds is wired incorrectly, but I think it should be easy enough to resolder (knock on wood).
Something is going wrong in my switch parallel to serial conversion though, need to debug.
I was all excited to get tinkering but couldn't locate my breadboard, which was last seen when I was in college, so with my fingers crossed I headed to Radio Shack. I was pretty sure they would be useless, but not only did they have a selection of breadboards, but also they also had Arduinos in stock. I am amazed.
You can see here, the table is spinning at 33 1/3 RPM as the largest dots appear stationary under the strobe.
A 3.3V 8MHz Arduino Pro connected to an XBee Series 2.5 and a battery. The other Xbee is on the Sparkfun Explorer USB and connected to a Python program that responds to the Arduino's calls.
The long exposure shot lights up the LEDs :o
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.
so, japan has this law that will ban resale of used/vintage electronics (PSE law) and it is sort of about to take place starting April 06. The diet is now considering about doing some amends to the law, but anyway, people are pissed. This would mean no vintage music electronics, no old game consoles, etc. How fucked up is that?
Anyway, some interesting sites to visit:
flickr.com/photos/asobitsuchiya/sets/72057594084825908/
www.boingboing.net/2006/02/22/japan_to_ban_resale_.html
Inside of some of the modules... just quite regular looking electronics, with imported and locally made componants.
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.
Just the SMT transistors to add on the back. Hand soldering the TQFP AVR microcontroller was interesting.
PCB through the excellent DorkbotPDX batch PCB service (nice colour)!
This is a little switchmode power supply that takes 9-12 volts DC and kicks out somewhere between 100 to 200 volts DC. It's intended for powering nixie tubes, and a kit version is sold by LEDSales in Australia, who I assume also developed it. They were thoughtful enough to include the circuit parts list and diagram in the kit assembly instructions (pdf). I wanted a version that used surface-mount parts, so I found surface-mount equivalents to all the listed kit parts and designed a board around them.
LEDSales' board is the one used in this nifty clock by Sascha Grant.
My board here is a proof of concept to see if the surface-mount parts I chose actually work. Despite using smaller parts it's bigger in area than LEDSales' board, though lower in profile - sort of; on the other side of the board there are a few largish components. I bet with careful routing I can squash it down to a very small size, like not much bigger than a square inch.
Happily, the concept is at least partly proven. Given 12V from a wall-wart it sits there and throws out 180V with no complaints. I haven't tried loading it with anything more than a single NE2 bulb, so we'll see how it does under pressure. Its voltage tends to drift downward, so there may be something wrong with the feedback part of the circuit, though it looks like it stabilizes after a while.