What goes in the "M1" area of the 8CH relay PCB?
Hello, I am looking into powering this module from the mains (as the relays will be used on 230V as well).
It looks like the PCB was designed with this in mind, with an unpopulated "M1" area that looks designed to accept another PCB on top.
I assume that this was made for a readily available AC-DC converter? What would be a pin-compatible reference?
The markings say "ZJW-1" and "M1".
Thanks in advance :)
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