Need Guru Help Regarding Micro-Controller + Wireless

Lower still !

And here is SMD BT for $6.60  - although it looks as if default setting would need to be re-programmed if you want 115K

So I could print my own interface to plug into a msp 430, and that would be ~ $10 per (uC + BT) !!

$40 for a 4 bot swarm (not including servos, wheels or batteries)

Seems doable…