dusjagr labs » Uncategorized

Randen update 2.0

dusjagr — Sun, 21 Apr 2013 15:44:41 +0000

Welcome to Randen 2.0!

Die letzten paar Wochen hat sich der RÃ¼telmaa Ã¼Ã¼Ã¼bel in den Putzwahn reingesteigert, nen neuen Ofen installiert, KÃ¼che renoviert und alles gestrichen. Merci!

WÃ¤hrendessen habe ich mich vorallem im neuen FabLab - Underes Ã„tzisloo / Randen mit 3D-Printern, BabyGnusbuinos und Kafi-Schnapps rumgeschlagen habe, Psychobillies und anderen Plastik-Kram geprintet.

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Visits to the Fields

dusjagr — Fri, 13 Jan 2012 06:21:49 +0000

Checking the Sorghum Field outside Yogyakarta

Cacao Plantation and Reforestation in Wonosari

Strange Fruits in DIY

: Small cocoa fruits

: Mmmmhhh Schoggi

: Cocoa fruit full of ants

: Biiiig one... Jackfruit

: Fungi farm

: Bamboo, biiiig grasshalm

: dusjagr likes mushrooooooms

: Looks yummy, but its just water.. no taste

: Ouch... checking the snakefruit!

: Mhhhh... Manggis

: Fresh from Pendingsari... Timbil collects the Manggis, Akbar is on the tree. Naaaiice

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More hacks on the BioNano-Mouse

dusjagr — Thu, 13 May 2010 18:18:44 +0000

I continued on the hack of the optical mouse, first i installed an RGB-LED to be able to choose the color of the illumination. The using the blue LED i tried to detect fluorescence using a fluorescein solution. I got some signals, but still need to test the amount of reflected light and fluorescence. got some filters laying around somewhere... i could easily detect the loss of fluorescence, when following a tiny little drop that dried out, see image below.

Furthermore I improved the code to read out the registers for the frame-grabbing. it seems there is a limit to at what speed i can dump all the pixels of the frame. But still i could improve it by reducing some of the delays down to 1 Âµsec. It lookes much smoother now, but haven't checked the worm yet.

Also i hacked another chip, the Avago 2610, very similar, 18x18 pixel array, And looking at the datasheet I should be able to get a lot more data out, such as, maximum and average pixel intensity, shutter speed, info about focused image etc.

Hackability of an Optical Mouse to use as NanoBio Sensing Tool

dusjagr — Wed, 12 May 2010 15:27:21 +0000

I am currently investigating to use the sensor of an optical mouse for various applications in microfluidics, nanosensing or motion detection of microorganisms. first results look really promising.
Thanks to some instructions and protocolls found on these sites: "How to connect an optical mouse to an arduino" by Martijn The and "Optical Mouse Cam" using an arduino and connect it to your PC, by Bidouille.org. And thanks to Gaudi for inspiring me for some worm-on-a-mouse hacking. Also there is some great documentation in the Avago Datasheets.

The video shows a screen-capture of how i recorder the motion of a nematode using a hacked cheap optical mouse, 16x16 pixel.

at the moment, the students at FHNW, Life science Technologies, are looking how to use the optical mouse sensor to detect flow speeds in microfluidics channels. more info can be found on my micro/nano lecture's wiki.

So first things to do: replace LED with some RGB or UV for fluorescence detection, code a more decent data visualization, add a speaker...

From the Datasheet
Notes:
The ADNS-2610 is designed for optimal performance when used with the HLMP-ED80-xx000 (red LED 639 nm). For use with other LED colors (i.e., blue, green), please consult factory. When using alternate LEDs, there may also be performance degradation and additional eye safety considerations.

DIY spectroscopy workshop @ CTM.10

dusjagr — Sat, 30 Jan 2010 17:25:28 +0000

Starting this monday at CTM in Berlin, there is a 6 day DIY constructivist workshop by sound art lab NK, with Martin Kuentz [DE] and Jo FRGMNT Grys [DE].

> www.nkprojekt.de

First results from the workshop:

[flickr-gallery mode="photoset" photoset="72157623335009216"]

DIY syringe pump MK2

dusjagr — Fri, 29 Jan 2010 16:07:05 +0000

NanoNews and Ideas

dusjagr — Mon, 25 Jan 2010 14:57:03 +0000

diy*-night und entfernte Perfomanz

dusjagr — Sun, 13 Dec 2009 02:55:12 +0000

Happily we (allthough we doesnt really include myself, thanks to gaudi, stahl und gÃ¤ss), meaning SGMK, organized another issue of the diy* festival. This year as a diy* day and night in Dock18, Rote Fabrik. As much as i heard and saw through the online stream it was a great success. Numerous open.theremins were built and lots of solder smoke inhaled.

Proudly, Keith Lam, aka the demos, and me were invited to start the evening performances by a remote performance from out hotel room in Taipei, where we just finished with PlayAround09 | TechNomads. So 5 o'clock in the morning, drunk and tired, Keith and me built an ultra-diy-experimental-improvised audio/visual setup... somehow his iSight from his macbook pointed towards my eeePC stuck onto a chair on top of our hotelrooms table. onto the latter the webcam was attached which was used to shoot some visuals during the performance from the electronic toys'n'synths or even pointing back to keiths screen...

full stream of the remote performance can be viewed on tv.dock18.ch

dusjagr @ PlayAround 09 | TechNomads

dusjagr — Sun, 13 Dec 2009 00:48:28 +0000

PlayAround 09 Workshop - TechNomads from dusjagr on Vimeo.

PlayAround 09

Videoshooting on the Moon with Andy G

dusjagr — Mon, 28 Sep 2009 15:49:44 +0000