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Selasa, 14 Juni 2016

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Minggu, 22 Mei 2016

ç´ç´„å ¢æŠŠ â€œé­šèœå ±ç”Ÿâ€ 搬進都市叢林

New Yorkers bring fish farms to urban jungle
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NEW YORK, (AFP) - So you recycle, drive a small car, and try to eat organic. But what about running an eco-sustainable fish farm combined with a naturally fertilized vegetable patch in your kitchen?

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Christopher Toole and Anya Pozdeeva, two former New York bankers who founded the Society for Aquaponic Values and Education (SAVE), are there to help. "We call it beyond organic," Pozdeeva, 39, said.

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Aquaponics is a technique with ancient roots for breeding tank fish, recycling their effluent-filled water to fertilize vegetation, then allowing this naturally cleaned water to drip back into the tank below.

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Its a perfect, miniature eco system that will let you grow healthy food right in a cramped apartment with almost no specialist equipment. "We built our system just from trash cans," said Pozdeeva, a slender woman who emigrated from Russias Siberian region 20 years ago and still speaks English with a gentle accent.

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If growing fish to eat in your New York apartment sounds unlikely, then Toole and Pozdeeva are even unlikelier urban eco pioneers. Just a short time ago they were bankers working crazy hours among the skyscrapers of Manhattan, a far cry from the gritty Bronx where they are based today.

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After the 2008 financial crash floored the banking industry, Toole, a vice president at Sovereign Bank, discovered he had a serious eye problem, which he says was stress-related. And both of them were severely disenchanted with their careers.

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"They know how to squeeze every drop out of you and then throw you away," Pozdeeva said. "We wanted two feet on the ground," said Toole,47, and striking-looking with a bushy gray beard and pork pie hat.

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Instead, he put two feet in the water. Toole knew a little about fish from childhood summers with his scientist father out at Woods Hole in Massachusetts, a famed marine biology research center in the Cape Cod area. Aquaponics, he reckoned, would let him marry sustainable food production with what he hopes will be an equally sustainable business model.

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Sabtu, 16 April 2016

eBike Electric bike lights

Mrs 120ThingsIn20Years pulled up in her eBike only to grab a hand rail and detach a bit of tendon that should have never been detached.

Ouchie!

Shes under the Plastic & Re-constructive Surgeons knives, scanners, and other bits of kit as I type. So this is part blog post, part self distraction.

We are so lucky in the west to have access to all these amazing experts who learnt all this amazing stuff from all our amazing universities, then went on to work at places with amazing tech that can do amazing things.

Head transplants and so forth.

Sometimes medical staff (oneofmyformerelderlyGPs) forget they didnt get there on there own, but rather because we wanted them to be put there so found the cash to teach them, and that perhaps the poor people in the hospital where they used to work were poor because they were sick or something, and not just because they loved daytime television.

But more often than not they are an awesome bunch of people.

So thanks medical type people everywhere. If it wasnt for you, I would have been dead ages ago, many times over.

Now...

Tail lights and indicators had nothing to do with this mishap, but I cant help feeling it might be nice to not have to take your hand off the front brake (right hand) to signal a right turn across traffic (we drive on the left). If you dont signal you run the risk of getting killed, and if you do, you will almost certainly be killed.

Especially by that loony driver who was driving on a moonless night with their lights off. Thanks loony driver for near missing me. A near miss is always better than a light graze.

Anyway, I thought Id make some indicators and brake lights and things.

I figured Id use a PICAXE programmable chip to make everything work.

I further figured the feature list should be ...


  • Headlight control so I can set strobe, always on, hi/low beam or whatever. This way I can add my own light directly to the eBike power supply at some stage, and turn the world into daylight if needs be. When we are on the road, a strobe headlight is always a good thing so you dont get lost amongst all the other white lights. But we have a lot of cycle tracks in Adelaide Australia, and when youre on the tracks, being able to see is more important, so you want solid bright light.
  • Turn indicators with a handlebar mounted three way thumb switch with off in the centre, and some kind of beeping sound that reminds you that they are on. Maybe a auto cancel function after 30 seconds (with an extra beep to let you know or something).
  • A brake light that does something dramatic to draw attention to itself, and when its not being used as a brake light, should just go about acting like a normal tail light.
I think its important to have a solid red light (most bike tail lights here strobe) to give the indicators a point of reference. Its will be difficult for a driver to tell if your indicator is the left or right without a red light reference point I think. 

For the brake light drama, Im thinking along the lines of a rapidly increasing strobe that flashes faster and faster, then settles on solid bright red light. The flashing stage would take perhaps one second and should continue even after you take your hand off the brake, so you can use it as a "HERE I AM, LOOK AT ME" kind of thing. Just touch the brake when you think people need to be reminded of your being made of soft squishy stuff that goes all rancid when all your blood falls out, and then you can get back to escaping from them.

Then one last feature should be a "strobe everything" function in case of emergency. I might also attach that to the warning device.

My current warning device is a bell, but its soon to be upgraded to a container ships fog horn, and a baseball bat with a nail through the end of it.

Actually I think I might start a campaign that says a green flashing light on the end of a flexible fibre glass rod that extends two feet into traffic means that there is a diamond on the tip of the rod ready to gently (without disturbing me in the least) draw a line down the length of your cars paint if you get too close.



120 Things in 20 years thinks that the emergency "strobe everything" function would be best voice activated by a scream.



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Jumat, 08 April 2016

Arduino And littleBits

So yesterdays post was about littleBits and the new cloudBits that seems to make it pretty easy for littleBits to play with the Internet of Things. Writing that post made me curious about the combination of Arduino and littleBits.
Arduino-At-Heart module for littleBits

A TechCrunch article from May 2014 covered the Arduino-At-Heart module for littleBits and the Arduino Starter Bundle. TechCrunch explains the collaboration between these two tech ecosystems this way:
"The world of littleBits...can now play friendly with Arduino. If you’re not familiar with littleBits, it might help to think of it as a DIY Electronics kit mashed up with LEGO. Each “bit” is an individual electronic component, like a speaker, or a light sensor, or a blinky LED. Snap them together, and you can do all sorts of cool stuff — no programming required...That “no programming required” point has always been one of littleBits’ biggest strengths; it meant that anyone could start putting stuff together, pretty much by accident. Alas, up until now, “no programming required” also meant “no programming allowed”...The littleBits idea is great — but once a particularly enthusiastic user hit the limits of what their kit could do, the next step (learning to
use a standalone Arduino board, which meant also learning proper circuitry, soldering, etc.) was suddenly a pretty big one...This morning, littleBits is introducing an Arduino module into the mix. It’ll snap right into place — no soldering required — just like the other littleBits modules, with one big difference: it’s programmable. You get the programmability of an Arduino, without having to learn the myriad other prerequisite skills. You jack into it via the onboard microUSB port, upload your programming via the standard Arduino IDE, and all of your littleBits modules fall in line."
The Engadget May 2014 coverage of the littleBits Arduino module rollout talks about some of the advantages of this module:
"...it also opens the door to interaction with your computer. Since the Arduino module has USB support built-in, you can create Etch-A-Sketches, Pong games and other programs that have LittleBits and your PC working in harmony. Rothman adds that many existing Arduino projects should work with only a few slight tweaks to pin assignments."
Arduino Starter Bundle for littleBits
This Instructables shows what was previously involved with adding Arduino capabilities to the littleBits synth kit before the Arduino-littleBits modules became available.

To learn more about the littleBits Arduino module, check out the webpage for that module. If you want to know more about the littleBits Arduino starter kit, heres a link to that webpage.

At the next meeting of the Humboldt Microcontrollers Group, Ill ask how many people there have worked with littleBits. If no one has, it would be an interesting exercise to get a few littleBits modules and see what all the options are for combining them with traditional microcontroller projects. If you have littleBits modules and are coming to the August 7 MCU meeting, please bring them to the meeting. Thanks!

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Minggu, 03 April 2016

Electric Bikes My second electric vehicle

We bought some electric bikes!

Way cool.

Aside from sailing and messing about in boats, there is nothing so normal feeling as riding a power assisted bike.

You stick a battery and an electric motor onto a normal everyday bicycle, and you get an uncanny resemblance to the feeling you get when you go sailing.

Something just feels right about it all.

I thoroughly recommend it.

I bought mine from a company called Dillenger, but so far, I have nothing good to say about them.

Thats not to say I have anything bad to say about them yet, but Ive had a few problems due to damage to my delivery in transit, and it will be a while before I get an impression of the company as a whole.

But...

I started work on Mrs 120ThingsIn20Years bike first, because I knew if I built my own bike first I would just drive away into the sunset and it would be weeks before getting around to building hers.

But there were some problems.

So I started work on my bike.

There were some problems.

In the end we spent a few hours at a local bike shop called MiCycles owned by a thoroughly decent human being who made my bike work.

Thanks MiCycles.

Well see about thanking Dillenger if they finally figure out how to do customer service without being...

lacklustre

If they turn out to be a publicly listed company, I might buy a share so I can go to their annual general meetings and bang on about how poor their problem resolution is.

Anyway...

electric bikes are awesome, you should buy one if you can.

I know I sound jaded, but I today I rode a lot without drinking enough water, so really Im a bit "near death" is all.

I see everything once, just like Yossarian.



120 things in 20 years has spent the last three days on the phone so hasnt posted anything.






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Kamis, 31 Maret 2016

Electric Waste Orchestra Humboldt Electronic Light Orchestra

So a couple days ago I read about the Electric Waste Orchestra (EWO) in PSFK. It seemed like an idea that is harmoniously complementary to the Humboldt Electronic Light Orchestra were working to kickstart with the Humboldt Laser Harp project. Then today I met Tibora Girczyc-Blum, the director of SCRAP Humboldt, and I realized how well the EWO concept meshes with the SCRAP Humboldt mission. Per PSFK:
Electric Waste Orchestra hard drive instrument
"The Electric Waste Orchestra at Makerspace Urbana, located in Champaign-Urbana, Illinois, takes outdated technology and turns them into pieces of fully functioning musical equipment. One guitar, shown in the video above, is comprised of an old keyboard number pad, six hard-drives, Arduino hardware and some software, all of which will not decay into toxic waste. They have other musical hardware in the works, including a Wiimote, and yes, they can all create beautiful music. The electric orchestra is a clever way to bring new life to these old technologies...It’s nice to see people taking these old gadgets out of the dumpsters
Arduino controlling the hard drive instrument
and onto the stage to bring others joy
..."
Here is a YouTube list of the EWO videos. It looks like theyre in the early stages of learning to play somewhat traditional music with their Aduino-controlled instruments. However, some of the music played in the video embedded in the PSFK article seems closer to circuit bending than to traditional music. If youre not familiar with circuit bending, Wikipedia says circuit bending is:
"...the creative, chance-based customization of the circuits within electronic devices such as low voltage, battery-powered guitar effects, childrens toys and digital synthesizers to create new musical or visual instruments and sound generators. Emphasizing spontaneity and randomness, the techniques of circuit bending have been commonly associated with noise music, though many more conventional contemporary musicians and musical groups have been known to experiment with "bent" instruments. Circuit bending usually involves dismantling the machine and
Cateura sax from trash
adding components such as switches and potentiometers that alter the circuit
."
Youll likely get a different definition of circuit bending from every person you talk to about it, but "BEND: A Circuit Bending Documentary" is a relatively good place to start if youre new to the genre.

While circuit bending is an aspect of the EWO that microcontroller people would likely enjoy, creatively reused materials seems to be an aspect of EWO thats more along the lines of what SCRAP Humboldt would focus on. When I did a YouTube search for  arduino recycle electric instrument, two of the more interesting finds were The Recycled Orchestra of Cateura and Bash The Trash. There are countless other videos of musical instruments made from upcycled goods, so if Humboldt musicians and upcyclers want to join forces, there
Bash The Trash cardboard trombone
are plenty of examples out there to learn from, and homegrown ingenuity can add local flavor to the effort. Most of the instruments in these videos arent based on Arduino or other microcontrollers (MCUs), but there are plenty of musical instruments made with the SCRAP Humboldt approach to creatively reusing materials, and there are enough MCU-controlled instruments to make it an enjoyable challenge for the electronically-inclined members of the Humboldt Microcontrollers Group.

Make some music (with any type of instrument or source materials you prefer) and make the world a better place!

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