I just finished building up my first quadcopter (X):RCTimer 2836-11 750kv MotorsRCTimer 40a ESCs12x4.5 propsFlamewheel 450 frameZippy 2650mah batteryXbee for telemetryFlysky 9x transmitter/receiver (er9x firmware)APMv2 (Arducopter 2.5.5 Quad…
"I just wanted to point out a few things in these instructions to save future people grief. While this does work well, there are some things to point our that are different with the current ER9X firmware.