I sourced an old tube radio from an good will store. Since it was defective I got it for free. Anyways, I have already striped the electronics inside so this does not matter. I am going to build a Bluetooth speaker box with the case. Bluetooth receiver, Class-D Amplifier, bass reflex loudspeaker, lead-battery, USB-charging port and a carry handle.
Continue reading Worklog: Conversion of an old tube radio into a Bluetooth boombox
In September 2013 Emi ((kondens.at)) and I build a fairly large pinhole camera which made use of a room at the Rummelhummel extravaganza ((http://www.rummelhummel.net/)), a temporary art space in Vienna in September 2013. Continue reading Einwegkamera – a large pinhole camera
Wash Window is a video installation exhibited at the Werkschau (show) at the 2014 Schmiede in Hallein/Austria. This piece was created based on the idea not to discard the porthole of an old washing machine. It features a 7:27 min. video loop of laundry in a similar washing machine.
The sculpture “USauB” (USowB) invites visitors to interact with it. It’s powered USB teats provide vital electrical energy for our important mobile devices. Just like little piglets drink from their mother the USauB feeds mobile phones, tablets and other devices. Visitors are encouraged to place their devices in the care of the sow to have them charged.
Continue reading USauB – an electronic sculpture charging your mobile devices
This was a commissional work for a student unions office. Instead of throwing away three Euro-pallets I was given the opportunity to make them into a comfy arm chair.
Material: three Euro-palets, dowels, screws, clear nitro paint
Um was geht es hier: Viele alte Videokameras sind mit s/w Sucherbildschirmen ausgestattet. Um eben diese s/w Suchermonitore – electronic viewfinder kurz EVF – geht es hier. Diese lassen sich in vielen Fällen sehr einfach an eine Videosignalquelle (BAS oder FBAS) anschließen und als Minibildschrim verwenden.
A fun way to pep up black and white pictures is to modify the colors of the picture. For instance, take this iconic picture of Che Guevara. is is based on a black and white picture. I replaced white with red to to achieve the look of the well know version of this image.
Replacing white with red is not the only option. Using the brightness a white or a black image for the RGB channels allows in total 64 variants to combine into a colored picture.
EPROM short for Erasable Programmable Read-Only Memory is a relict from the early days of computing. It is a from of memory used to store program code for CPU and micro computer. As the name states it is a read-only memory this means that in normal operation the memory content can only be read but not altered. To erase then the memory the chip needs to be exposed to UV light. For this propose the housing of the chip has a built in quartz glass window. I used a so called flash gun which is basically a mains powered fast firing strobe light which is pointed on to the window.
The process of erasing the memory takes some time. I interrupted the erasing process to monitor the progress erasing process by dumping the chips memory into a file. During the first 60 seconds of the chip being exposed to the light no data change occurs. After that the memory fades pretty fast. Even the placement and structure of the memory cells on the chip is somewhat recognizable.
This post can be seen as a follow up to my recent post ((My first impression of the Genius G540 universal programmer)) adressing the G540 universal programmer. The reason why I bought this programmer was that I have collected many old memory chips. I was always curious what kind of interesting data they might contain. A EPROM reader was needed and since my urge to build an Arduino shield for that purpose lapsed soon after sourcing some MCP23S17 ((Microchip product page of the MCP23S17)) SPI port expander chips. So I bought the G540 I mentioned before. Continue reading Reading Flash and EPROM chips and visualizing their contents
I have been collecting old EPROM chips for many years. Now I was curious what data these hold exactly. I am not looking for program data but more for character maps, hidden “Easter eggs” . Something like this Hack a day ((Hack a day on hidden photographs in old Mac ROM chips )) post.
So I went to ebay an bought one of this widespread available “Genius G540 ((G540 programmer on ebay))” EPROM programmers. Continue reading Genius G540 EPROM programmer: what’s inside and initial startup
