Arduino Reference - WireOnReceive

Arduino

Reference Language | Libraries | Comparison | Changes

## Wire.onReceive(handler)

#### Description

Registers a function to be called when a slave device receives a transmission from a master.

#### Parameters

handler: the function to be called when the slave receives data; this should take a single int parameter (the number of bytes read from the master) and return nothing, e.g.: `void myHandler(int numBytes)`

#### Returns

None

#### See Also

- Wire.onRequest()

Reference Home

Corrections, suggestions, and new documentation should be posted to the Forum.

The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.

©Arduino | Edit Page | Page History | Printable View | All Recent Site Changes