Sofar2mqtt LSW-3 ME3000SP solar interface housing
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A housing for Sofar2mqtt giving convenient access to 5V power
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- Printables
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- Other House Equipment
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- Creative Commons — Attribution
The communications port of the Sofar inverters provides a convenient 5V power source that can be used to run a Sofar2mqtt interface. I designed this housing to go between the supplied LSW-3 WiFi dongle and the inverter as it is also a convenient location for the Sofar2mqtt as well as providing DC power.
The PCB needs to be cut to 46x40mm and the ESP and MAX modules positioned as shown so that the display lines up with the cover.
I used the following parts:
I printed in PLA but I guess many materials would work. The top DSUB9 male connector slides into slots, the bottom DSUB9 female connector is fixed with small self tapping screws.
Only pins 2, 3, 5, 9 need to be connected between the plug and socket. Pin 5 is ground and pin 9 is +5V.
A couple of M4 screws and nuts are needed to fix the LSW-3 to the bottom of the housing.