Hello Arduino Community! Here I go with my first post and my first question. I’m trying to monitor sensors from my smartphone. My project is nearly finished, but I’m stuck at a point where I try to send some data collected from my Arduino to an ESP by I2C connection. The ESP requires an answer, an…

I2C Arduino ESP - Problem sending char array

system April 21, 2018, 8:32pm 2

Why are you using write()? print() is for sending ASCII data.

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