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By MaxP
#83438 hello,
can anybody post schematic (in .pdf format) esp-01 interfacing with microcontroller.
the microcontroller works on 3.3V
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By rudy
#83442 Maybe you should explain what the word "interfacing" means to you.

Interfacing could be one output pin of one device connected to one input pin of the other.

Or it could be using the I2C protocol. Using two lines but with its own timing complexity.

Or it could be via uart communications, again two lines.