Wire.onRequest(handler)
描述
指定一个函式在接收到主端给从端的请求时被呼叫。
参数
handler：函式的名称，这个函式应该要没有回传值以及没有参数，例如：void myHandler()
回传
无回传值
See also
－ Wire.onReceive()
The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.
