In my application I need a clock that is synchronized across several devices. (A detailed description of my system is given in an earlier question)
It appears achieving precision timing at a software level is not practical, therefore I am looking for a complete hardware solution. In this case I am looking for some sort of hardware that emits a clock that is completely synchronized across several nodes over the air.
Therefore, Are there low cost, short range (up to 20-30 meters) ICs that emit a clock synchronized across several wireless nodes? I cannot use GPS since my system will work mostly indoors.