Originally Posted by
ericy
I thought ANT was a proprietary standard that Garmin came up with, and was more designed for working with sensors. Bluetooth (or the low-energy variant) is an open standard that is a more generic protocol that happens to work with sensorts.
Garmin owns it Dynastream now, but they didn't own it when they originally invented the ANT protocol.
Bluetooth and BTLE are not open either though. If you want to make a BT device, you're going to pay a licensing fee to Bluetooth SIG or one of the chip mfgs such as Nordic to license the stack (and probably for a vendor ID and device ID.)
The one to many problem with BT has come up in other situations. One time a few of us had BT mini speakers and wanted to make them all play from the same phone. It can't be done, at least not without some kind of hack.