All,
Here's a homemade transmitter I built last year to fly my Hexcopter.
Sticks from an old Futaba 35MHz set. "Brains" by Arduino. Radio is a Shuncom SZ05-TTL-ADV which is a 2.4GHz spread spectrum serial transceiver module that send / receives a proprietary serial command protocol.
Built in LiPo with monitoring. USB programming. LCD Telemetry display. Useful(!) throttle minimum (ie hover) knob.
Photos:
