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difference between RC5 and NEC protocol
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Post 1 made on Monday December 8, 2008 at 06:42
Lurking Member
December 2008
Hi friends

I am new to this forum

I would like to learn about RC5 and NEC

what is the difference betwween RC5 and NEC protocol

And Advantages of RC5 over NEC protocol

Advance thanks for helping
Post 2 made on Monday December 8, 2008 at 09:32
Long Time Member
September 2006
You can start with the two articles here:


They are more geared towards decoding Pronto hex codes, but in the process explains the two protocols. "Pulse Width Method" describes NEC protocol and "Bi-phase Method" describes RC5.

One disadvantage I can think of for RC5 is that it uses toggle bit, and that makes it difficult for learning remotes to learn the signals. They will learn the signals, but most will only be able to learn one of two alternating signal and will work intermittently with some functions.

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