MultiWii 6-channel setup with telemetry. Using the D4R-II receiver with stock firmware (6 channel max). SB and SC are MWC AUX2 and AUX1 respectively. Short press SH for voice voltage. Long press SH for voice timer.

I have a voltage divider from the battery to A2 on the RX.

See image for my MultiWiiConf quadcopter setup. Mostly defaults except expo turned off (done on radio) and the rates turned way up for acrobatics.