Ronja

   { I was informed about this by a friend over email <3 I basically
   paraphrase here what he told me. See also http://www.modulatedlight.org/.
   ~drummyfish }

   Ronja (reasonable optical near joint access) is a [1]free/open [2]KISS
   device for wireless connection of two devices using light (i.e. optical
   communication) and the [3]ethernet protocol; it can be [4]made at home
   (for about $100), doesn't require any [5]MCUs and as such can be
   considered a [6]LRS/[7]suckless alternative to traditional [8]WiFi
   [9]routers that are de-facto owned and controlled by [10]corporations. It
   works full [11]duplex up to the distance of 1400 meters with a speed of 10
   Mbps, which is pretty amazing. One can also imagine Ronja as a kind of
   ethernet cable, just implemented with light instead of electricity. The
   design is released under [12]GFDL. The project website is at
   http://ronja.twibright.com/.

   There are many advantages in Ronja -- besides the mentioned KISS design
   and all its implications (freedom, repairability, cheap price,
   compatibility, ...), Ronja doesn't use radio so there are no bullshit
   issues with legal bands etc., it also works with just an ethernet card,
   offers a stable and constant transmission speed with very low latency, can
   be potentially harder to block with jammers and to spy on: besides visible
   light the transmission can also use infrared spectrum and narrow direction
   of transmission, as opposed to radiating to all directions like wi-fis,
   also the fast flickering of the LED is unnoticable by human or even normal
   cameras, therefore Ronja transmission is expensive to detect. Also note
   that some kind of protocol-level [13]encryption can be used above Ronja,
   if one so desires. This makes it a nice communication tool for people
   under oppresive regimes like those in China or [14]USA.

See Also

     * [15]li-fi

Links:
1. foss.md
2. kiss.md
3. ethernet.md
4. diy.md
5. mcu.md
6. lrs.md
7. suckless.md
8. wifi.md
9. router.md
10. corporation.md
11. duplex.md
12. gfdl.md
13. encryption.md
14. usa.md
15. li_fi.md