Originally Posted by
iRant
The 'pairing bit' is not a requirement of pairing a device. scott967 has it right. On a head unit you only search for new devices when in the searching screen, and will usually pair with whatever sensor is found (no need to use pairing bit) as the sensor is happy for anyone to receive its data. Some head units however, restrict you to only finding sensors that you have said are trying to pair (which makes it much easier to deal with having other people with sensors around while trying to pair a new head unit/sensor combo), and so add the filter for the pairing bit being set.
You aren't quite getting what I was saying.
Particular head units might only connect to sensors with the bit set
but things work quite-well without doing that.
Thus, it's really an
option (not a requirement). It's not essential to make things work.
On the other hand, the head unit is required to be in a temporary pairing-mode (things would not really work at all without that).
Originally Posted by
iRant
If I remember correctly, the reset button is a way to test the sensor magnets are detected. After you press it the LED flashes when a magnet pass is detected.
Plus, it also sets the pairing bit, so head units that require it will pair.
What head units require the sensor to be in pairing mode?
The Garmins (the most-popular head units, by far) don't. Nor do the Bontrager head units.
It's clear that requiring a bit pair-mode bit from the sensor isn't a
real requirement (it's an
artificial requirement).