Wire.write(something) //Write to first register When it comes to writing, it's even worse: Wire.beginTransmission(Module_Address) //Use this to start transmission To read Wire.requestFrom(Module_Address, 3) //Read three registers Call me stupid, but I have the feeling like somebody told me that 1 + 1 = 2, and then gave me some polynomial equation to solve :(Īll book examples and almost all tutorials look like this imaginary example: Wire.beginTransmission(Module_Address) //Use this to start transmission I've read few books and too many tutorials, but I could summarise these in two:Ī) all tutorials are just showing the very basics of how to use these methods and b) they don't actually explain the steps, like everything is totally self explanatory. Being novice, I almost never use libraries that are already written by somebody, I try to create my class for module in order to truly understand how this module works and to learn how to manipulate with it. I Googled this a lot, and it seems that I am not the only one having problems with really understanding Wire.write() and Wire.read().

Wire library read from