Its 4 dosing heads out of a jabao dosing pump...Totally jealous of the dosing pump setup. Can you tell us more about it?
the pumps connect to ln2803 ic then out of that ic into the pca9685 using 4 ports .. the pca9685 is connect to the pi of course..... The Power and ground on the pumps are isolated from pca9685 and powered with a 12v ps connected to input and ground on ln2803 .. Again this keeps it somewhat isolated . the reef-pi ..
Its only being tested on the desk at this time.. Soon I am going to sort things out in isolated components data cables only will be connected to the pi . either with serial cables or hdmi.....
everything in my setup has been from reading this forum thread.. All the info is here . I just duplicated
OHH Also i am Worn out I have i layed 350 sq ft of floor tile today ..... back splash tomorrow... Will give the customer there Kitchen back End of the Week..

command line errors
