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Emontx V3.2 and nodemcu v3

Hi

I have emontx v3.2 which I want to use nodemcu for communication instead of 433mhz.

what firmware should i have on emontx v3.2?
anyone who has tips on how to program nodemcu to make this work?

wiring between nodemcu and lolin nodemcu v3?

Do you mean wiring between emonTx and nodemcu?

Yes. Between the nodemcu and emontx.