Hasty Briefsbeta

  • #lasers
  • #DIY
  • #networking
  • Project connects two computers via lasers using Linux tun network devices.
  • Uses USB-UART cables connected to ATtiny85 microcontrollers with lasers and phototransistors.
  • Originally planned for 38kHz IR sensors but switched to phototransistors due to reliability issues.
  • Data transfer achieved at 4800 baud, with SSH connections taking about a minute.
  • Safety measures included using laser safety goggles.
  • Each computer runs a relay program to manage packet transfer between tun0 and UART.
  • Source code and more details available on GitHub.