http://letmegooglethat.com/...ecurity+of+sram+etap

First few links answers your question. Short answer no, SRAM says it is “more secure than any cash machine.”

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Elisha
"Triathlon doesn't build character. It reveals it."

You're a bit off there with your snark. Etap wireless communications are secure, sure. The blips are hardwired to a blipbox. They could be momentary switches, in which case it would be simple to hack or "diy" a custom setup. Or they could not be, in which case it wouldn't.

It would seem that you didn't understand my question.

Are there any embedded electronics in the blip button itself?

Scott

Nope. And I'm surprised more people haven't made their own. They seem pretty expensive for what they are.

I found some info over on the weight weenies forum:
http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=140054&p=1244048&hilit=etap+blips#p1244048


Relative to the hacking I did for 7970 Di2, this looks a lot easier.


Scott