Registers a function to be called when a slave device receives a transmission from a master.
handler: the function to be called when the slave receives data; this should take a single int parameter (the number of bytes received from the master) and return nothing, e.g.:
void myHandler(int numBytes)
Corrections, suggestions, and new documentation should be posted to the Forum.
This reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License and is based on the Arduino reference. Code samples in the reference are released into the public domain.