Is there a simple way to form a wireless link for a simple pulse? On my bike I have a magnet attached to a spoke which passes a coil which produces a pulse. This pulse is the basis for a speedometer / milometer. The pulse is transmitted to the bile computer wirelessly, which is nice because it is neater. I want to have a go at make my own milometer as an experiment and want it to be wireless. Can you get pairs of ICs which will link wirelessly? There are so many wireless devices around these days that I would have thought they would be common place but I cannot find anything on a search. A pointer in the right direction would be appreciated.