Hi,
I would like to build a dosing system using the VDM ports for control. There is a great thread below where another member has done just that but i'm struggling to find the correct relay board with separate input supply and GND. the only ones i can find have the VCC - JD VCC jumper to allow a separate 5v feed (pictured). there is only one GRD though which would have to be shared with the RJ45 connection. I'm am not an electrical engineer but understand the basics and can solder well (used to make cables for a living). I also understand you do not wish to give out too much info on this subject incase people break their Apex's or set fire to themselves. I accept full responsibility for my own actions and the life if my apex.
If anyone can advise on a suitable 4 channel relay board, i would sure appreciate it!
Other thread: https://forum.neptunesystems.com/sho...M+dosing+pumps
4-channel-5v-relay-shield-module.jpg
Thanks,
Andy
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