Dependencies.

examples/lime2-mod-io-relay-on_off.py

@@ -46,7 +46,7 @@ root@a20-olinuxino:~# reboot now
 olimex@a20-olinuxino:~$ sudo bash
 root@a20-olinuxino:~# apt install htop tig git etckeeper vim curl python3 python3-venv python3-pip
 root@a20-olinuxino:~# python3 -m pip install --upgrade pip setuptools wheel
-root@a20-olinuxino:~# pip3 install pyA20Lime2
+root@a20-olinuxino:~# pip3 install pyA20Lime2 bitarray
 root@a20-olinuxino:~# pip3 install  -U pymodbus[twisted] click prompt_toolkit pygments
 
 # enable i2c-1 by running and selecting it (temporary step until fixed by Olimex but not needed for debian 10!)