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By bananasplit
#86235 Hello!I do have this oled.When I connect it to my arduino (with the test code provided on the link),it works perfectly..But when I try my nodemcu(and also change the pins accordingly),it never turns on.By default it works as spi 4 wire and not I2C..Now,I suspect I m making a rookie mistake.But I can't even think what I m doing wrong..Any thoughts would be much much appreciated..last thing I tried was to map arduino digital pins to nodemcu ones..let's say d13 of arduino is d5 on nodemcu..still no luck..