systemctl disable cloud9.service
systemctl disable cloud9.socket
systemctl disable bonescript.service
systemctl disable bonescript.socket
systemctl disable bonescript-autorun.service
systemctl disable avahi-daemon.service
systemctl disable avahi-daemon.socket
systemctl disable nginx.service


sudo apt remove bb-node-red-installer nodejs c9-core-installer


apt-get update && apt-get upgrade
apt autoremove

apt-get install iptables-persistent
iptables -A INPUT -p tcp --destination-port 53 -j DROP
iptables -A INPUT -p udp --destination-port 53 -j DROP
iptables-save > /etc/iptables/rules.v4


passwd => GRETAdmPS

echo -n greta-dm-ps<?> > /etc/hostname

vi /etc/systemd/timesyncd.conf (set NTP=...)

==============================================================================

mkdir build
cd build/
git clone https://github.com/shabaz123/iobb.git
cd iobb/
make
sudo make install

-- install actions --
rm -f /usr/local/include/BBBiolib.h
cp ./BBBio_lib/libiobb.a /usr/local/lib
cp ./BBBio_lib/BBBiolib.h /usr/local/include/iobb.h
cp ./BBBio_lib/BBBiolib_ADCTSC.h /usr/local/include
cp ./BBBio_lib/BBBiolib_McSPI.h /usr/local/include
cp ./BBBio_lib/BBBiolib_PWMSS.h /usr/local/include
cp ./BBBio_lib/i2cfunc.h /usr/local/include
ln -s /usr/local/include/iobb.h /usr/local/include/BBBiolib.h
-- install actions end --

# pleace DMPSctrl coce into /home/debian/build/DMPSctrl and build
# in ~/build run tar xzvf DMPSctrl.tgz
cd ~/build/DMPSctrl
make

# run the application
sudo ./DMPSctrl



#######################################
# on coltarol computer (PC) run udpclient_hdr to enable outputs
# set IP address to match the power supply
# 5A96 of $((16#5A96)) is teh hex value of the enable pattern

./udpclient_hdr 131.243.115.14 $((16#5343)) 7 $((16#5A96))

# if necessary build the tool using the following command
gcc udpclient_hdr.c -o udpclient_hdr

==============================================================================
http://armsdr.blogspot.com/2014/11/beaglebone-debian-read-only-filesystem.html