Hello Community

It is possible to realize a wireless solution with 40 pic device anyone connected to RFM12 Moduls that all send data to the PC
40 pic's connected to 40 RFM12 moduls that send data to a receiver RFM12 modul on the PC side

How it is with conflicts if more RFM12 device sent data on the same time?

If it possible, welcome sugestions

Thanks

Regards
Sato