Pietro Vesconte’s world map
Pietro Vesconte’s world map (1321)
Italian geographer Pietro Vesconte was a pioneer of the field of the portolan chart. His nautical chartsare among the earliest to map the Mediterraean and Black Sea regions accurately. He also produced progressively more accurate depictions of the coastlines of northern Europe. In his world map of 1321 he brought his experience as a maker of portolans to bear; the map introduced a previously unheard of accuracy to the mappa mundi genre. The world map, as well as a map of the Holy Land and plan of Acre and Jerusalem were made for inclusion in Marino Sanuto’s Liber secretorum fidelium cruces.
Just some small updates:
- Tried to pack the components a bit more together, for portability and best decoupling.
- Added mounting holes
- Updated some components to better fit the spec
I’ve started working on a pocket amplifier project. Main qualities should be:
- high efficiency (for its size)
- rechargeable batteries
- USB charging
- open-hardware (although, I have to do it in Eagle because of my employer requirements)
Main concern is, of course, the amplifying circuit, since that is going to be the biggest power-consumer. Therefore I have decided to use Class D amplifier - TPA3122D2, which belongs to the most efficient ones.
For starters, I am working on schematic and PCB for a first prototype. This time without the USB charging yet, just with external power. I might do this project modular, that the battery circuit will be separate from the rest. Not sure yet. I present to you version 0.1!
Kvitnu released my album today.
https://www.facebook.com/kvitnu/posts/10151437800765748
How to record your Open Frameworks program
Couldn’t find any beginner solution to this and when I finally solved it, I felt I should share. Put this at the end of the drawing cycle. Not very fast but works! Yeah and don’t forget to define ‘counter’ variable for adding frame count. Frames will be saved in ‘data’ directory.
char buff[50];
ofImage image;image.grabScreen(0, 0, 1280, 720);
sprintf(buff, "frame%.4i.png", counter);
ofSaveImage(image, buff, OF_IMAGE_QUALITY_BEST);
counter++;
Greenhouse rooftop garden (Brussels)
Rooftop garden built on top of parking building in center of Brussels. Many various vegetables / fruit plants, 6 beehives and almost finished watering system (designed as part of OSMOGAS).
OKNO rooftop garden. 3 bee hives, one with temperature and humidity sensors, and infrared camera for closer observation.
Relay box built today.
Controlled via Arduino or compatible board, can handle 2200W!
