shirriff/Arduino-IRremote — pull request #32 by Arachnid (2013-07-10 20:29:50+00:00)
Title: Add overload to sendRC5 to support extended messages

The RC5 protocol supports using the second start bit as a field selector, doubling the number of available device codes. This patch adds an overload to sendRC5 that allows users to specify the value of the field (second start) bit.