You should not really put a foreign executable into /usr/bin. A future package install or upgrade could clobber it with a similarly-named file. Better places to install to are /usr/local/bin for all users, or /home/pi/bin for user pi. This also makes it easier to back up your own files separately from the operating system, and to track your changes or retain them over a reinstall.
To compile nled yourself:
Code: Select all
sudo apt-get -y install ncurses-dev
wget http://cdot.senecac.on.ca/software/nled/nled_2_52_src.tgz
tar axf nled_2_52_src.tgz
cd nled-2.52
make
sudo install nled /usr/local/bin