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Uno + emontx + esp8266 but the problem

Tags: #<Tag:0x00007f681be368d8>

emonTXSerialGateway which is burned to ESP8266.
But the program have problem in line “SSD1306 display(0x3c, 0, 2);”


help me
thank you

if you want far easier method


buy an wemos R3 uno/wifi either at banggood or aliexpress or amazon or ebay

You have fotos and diagram?

it pretty easy just plug the emontx shield into the wemos R3 follow the above mention and you are done, no soldering no extra wires just plug and play-- but here a picture it has two extra wires, that you can ignore completely , that are connected to pin of the built in esp passing info directly to the uno board so I can adjust setting on the fly example of that is found here

thank you