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Antorcha, LED-based signal device (for viewing from up to ~50 m)
http://projects.qi-hardware.com/index.php/p/antorcha/
695bc5a25a
To achieve square 100 pixels (1:6.25 image aspect ratio), very vigorous movement is needed. 80 pixels (still 1:5) are easier. Initial estimates suggested a usable range of 1:4-1:5, so this is still good. Note that we may want to change the aspect ratio of the pixels themselves in the future (for smoother letters), so the pixel count may go up again. 80 pixels correspond to 11 characters in a 7x5 font with 2 pixels separation between characters. We may want to go up to 82 pixels to allow a 12th character - or use a proportional font. |
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Antorcha - A LED-based signal device ==================================== ... Directory placement ------------------- Antorcha makes extensive use of libraries and header of the ben-wpan project. For this, the top-level directory of the ben-wpan project must be in the same directory as the top-level directory of Antorcha. E.g., /home/qi/ben-wpan/ /home/qi/antorcha/ /etc/avrdude.conf entry ----------------------- Antorcha uses the atusb programming adapter from the ben-wpan project. Since the pin positions of MISO and MOSI are swapped between ATmega32U2 and the ATmega168, the following entry is needed in avrdude.conf (which is the same as the entry for nanonote_atusb except that the pin numbers for mosi and miso are swapped): programmer id = "nanonote_antorcha"; desc = "NanoNote 8:10 card adapter for ATUSB"; type = nanonote; reset = 1; sck = 8; mosi = 6; miso = 7; pgmled = 2; ;