net_mon is a C program that monitors network usage and displays them on a 32x16 led matrix.
Tested and deployed on a Rasbperry Pi 2 model B under Raspbian 7 (wheezy).
Compilation is done with the following command
make
Simply:
sudo ./net_mon
Loading a video on YouTube:
Top half is upload, lower than the lower half.
Bottom half is download.
Row 0 and 8 are scales for the graphs
Row 0 upload scale: two dots, so the highest line in the upload graph is at least 256 KBps
Row 1 download scale: seven dots, so the highest line in the download graph is at least 1536 KBps
Formula is 256 * (number_of_dots - 1)