11 lines
1.6 KiB
Markdown
11 lines
1.6 KiB
Markdown
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# Ronja
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{ I was informed about this by a friend over email <3 ~drummyfish }
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Ronja (reasonable optical near joint access) is a [free/open](foss.md) [KISS](kiss.md) device for wireless connection of two devices using light (i.e. optical communication) and the [ethernet](ethernet.md) protocol; it can be [made at home](diy.md), doesn't require any [MCUs](mcu.md) and as such can be considered a [LRS](lrs.md)/[suckless](suckless.md) alternative to traditional [WiFi](wifi.md) [routers](router.md) that are de-facto owned and controlled by [corporations](corporation.md). It works full [duplex](duplex.md) 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 [GFDL](gfdl.md). The project website is at http://ronja.twibright.com/.
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There are many advantages in Ronja -- besides the mentioned KISS design and all its implications (freedom, repairability, cheap price, compatibility, ...), Ronja works with just an ethernet card, offers a stable and constant transmission speed with very low latency, can be potentially harder 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, also the fast flickering is unnoticable by human or even normal cameras, therefore Ronja transmission is expensive to detect. Also note that some kind of encryption can be used above Ronja, if one so desires.
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## See Also
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- [li-fi](li_fi.md)
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