Hello guys, I want to implement a few wireless sensors in my home and i was thinking about using nordic-based modules like the ones sold on sparkfun.com. My question is how can i implement a working anti-collision communication between the sensors and base station ? If three sensors broadcast at the same time then i might have a problem. I was thinking about a token sent by the base station to one sensor after which it waits a period of time for the feedback and then move to the next sensor and so on. Is this a good way of doing things? I can also detect if on sensor has been disabled very easy and maybe (if it is a security system) to issue some warnings if the problem is still there after a few minutes or a few unsuccessful tries. Dumitru Stama -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist