[[Home =Arduino control=*parallel port interface*arduino nano with ethernet shield.=direct write=*with newline: <syntaxhighlight lang="bash">echo "works just fine" | nc 192.168.1.101 1000</syntaxhighlight>*without newline: <syntaxhighlight lang="bash">echo -n "works just fine" | nc 192.168.1.101 1000</syntaxhighlight>*printf: < back syntaxhighlight lang="bash">printf " keep on going" | nc 192.168.1.101 1000</syntaxhighlight>=echo to Wiki Home]/dev/usb/lp0=*change rules so device loads R/W*edit /lib/udev/rules.d/50-udev-default.rules*add line:<syntaxhighlight lang="bash">KERNEL=="lp[0-9]*", GROUP="lp", MODE="0666"</syntaxhighlight>
=Okidata Microline 320 Control=
*http://my.okidata.com/MAN390HB.NSF/MOCContents/4F6AD49DB70B93F6852562F400594112?OpenDocument