The Infrared Module that I chose was a TruOpto part HRM138BB5100 available from Rapid (PN: 55-0902).

Output for the IR module showing the NEC protocol structure.

Output for the IR module showing the NEC protocol structure.

I chose it for operating at 3.3V. The circuit is ridiculously simple, a total of 4 components and a small bit of veroboard. I followed the manufacturers recommendations:
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