![]() Syntax Wire.requestFrom(address, quantity) The bytes may then be retrieved with the available() and read() functions. Syntax Wire.begin() Parameters None Returns None requestFrom Description Used by the master to request bytes from a slave device. Wire: 21(SCL), 20(SDA) begin Description Initiates the Wire library. Not supported for operating as a slave device. The available channels and pin numbers are as follows and can also be confirmed on the pin map. ![]() ![]() The pull-up to communication lines is needed. This is an I 2C communications library that facilitates two-wire class communications with I 2C/TWI devices (also called "Wire Library").
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