arduino library for reading V.A.G. FIS / DIS 3lb line from radio / navigation
Video of capturing navi:
input are 3lines: ena/data/clk
interupt on ena: rising edge enable falling edge detection on clk like
interupt on CLK line read data lina value and store it as input packet
Packet overview in radio mode: http://kovo-blog.blogspot.sk/2013/11/audi-fis-3-line-protocol.html
FULLY TESTED:
- full fis mode on atmega328
- radio mode on stm32 (bluepill board)
For information how to connect radio to mcu see this wiki page.
Here is link to wiki page talking about theory of operation.