One could even play tunes using this by varying the baud-rate and the sleep length. #!/bin/bash cat /dev/zero | minimodem --tx 2400 & sleep 0.25; pkill

One could even play tunes using this by varying the baud-rate and the sleep length. #!/bin/bash cat /dev/zero | minimodem --tx 2400 & sleep 0.25; pkill minimodem cat /dev/zero | minimodem --tx 2400 & sleep 0.25; pkill minimodem cat /dev/zero | minimodem --tx 3600 & sleep 0.25; pkill minimodem cat /dev/zero | minimodem --tx 3600 & sleep 0.25; pkill minimodem cat /dev/zero | minimodem --tx 4000 & sleep 0.25; pkill minimodem cat /dev/zero | minimodem --tx 4000 & sleep 0.25; pkill minimodem cat /dev/zero | minimodem --tx 3600 & sleep 0.5; pkill minimodem Sorry it is out of tune, was just a quick try.