I'm interested in delivering 3 bytes to a bunch of recipients roughly every 50ms with a single transmitter. The data sent is unique to each recipient. I am curious which existing wireless comms solution would allow me to achieve the largest number of recipients I could deal with this way.
I've thought about BLE (which would be pretty great because ideally the recipients are also energy contained) and with it the limiting factor seems to be the connection interval. The lowest CI in BLE is 7.5ms which limits the theoretical number of devices I can send unique data to in 50ms to 6. I'm thinking that there must be a solution out there which doesn't penalise switching recipients as much as BLE. Or should I be looking into a custom protocol?