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Now when you use the Wire library, you call the TwoWire::write function which copies your data into a 2nd. This data is already sitting in an array in SRAM. Wire works very well, but: I only need the Arduino to act as I2C master and the Wire library seems to be a real waste of resources: My goal is to send out data en bloc (e.g.Ī Guide to Arduino & the I2C Protocol (Two Wire) h library by adding the # include statement. Start a new sketch and name it Nano_I2C_Reader. Wire Library send/receive - Arduino Stack Exchange Wire library OnRecieve function behavior - Arduino Forum WebFirst start by connecting your Arduino Nano 33 IoT board to the computer and opening the Arduino Create Web Editor. WebFind and create gamified quizzes, lessons, presentations, and flashcards for students, employees, and everyone else. I2C User Guide for Arduino Boards Seeed Studio Wiki

And if this answered your question, please mark it as correct :D cello black holeĪrduino wire library functions mean I2C Communications Part 1 - Arduino to Arduino

You can try to change it, the easier way would be to use an Arduino Pro mini (as mentioned by Gerben). But there might be other issues, with simply changing this. In principle the TinyWireM library has many of the same functions as the Wire library (except for the slave functions).