I am designing a wireless scoring system. Basically you have two people, if an event is triggered on one person the device must send a status note about that event to the other person's device. I though about using RF transmitters and receivers. Having a transmitter and a receiver on each device, but the issue is interference, if I have 4 or 5 sets of people using that device in a single room, then there is bound to be interference and I can't guarantee the data to be accurate all the time.
I stumbled upon a Bluetooth wireless transceiver RS232. Looks promising, but I am not familiar with how Bluetooth works and am not sure if I will face similar issues using such system instead.
I wanted to know if I will get interference issues if multiple RS232 modules are sending and receiving data at the same time.