ANT+ stick in Raspberry Pi and then off there with Wifi.
Raspberry Pi can be powered by USB battery pack, all of which could be gaffer taped underneath a saddle.
I presume the format of the power data over ANT+ is fairly generic and understood.
That is a much more cost effective solution indeed. If you dev an app android, you need an android phone for any user but a pi cost nothing....good idea.
@santino started
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ANT+ stick in Raspberry Pi and then off there with Wifi.
Raspberry Pi can be powered by USB battery pack, all of which could be gaffer taped underneath a saddle.
I presume the format of the power data over ANT+ is fairly generic and understood.