Hay gays, anyone have coding about sdm120 or spm91 to connected with wemos d1 r1. Thx
I’m 100% heterosexual, but I’ll answer anyway 
No personal experience of these DIN rail energy monitors, but it looks like both devices use an RS485 port and Modbus protocol, which has been discussed here before.
However, have you considered using @Costas’s Energy monitor system?:
https://esppromon.com/
Pete.
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