Aileron/v-tail/throttle VTOL mixer for PX4FMU ======================================================= This file defines mixers suitable for controlling a fixed wing aircraft with aileron, v-tail (rudder, elevator) and throttle using PX4FMU. The configuration assumes the aileron servos are connected to PX4FMU AUX servo output 0 and 1, the tail servos to output 2 and 3, the throttle to output 4. Inputs to the mixer come from channel group 0 (vehicle attitude), channels 0 (roll), 1 (pitch), 2 (yaw) and 3 (thrust) 4 (flaps) 6 (flaperon). Aileron mixer (roll + flaperon) --------------------------------- This mixer assumes that the aileron servos are set up correctly mechanically; depending on the actual configuration it may be necessary to reverse the scaling factors (to reverse the servo movement) and adjust the offset, scaling and endpoints to suit. M: 2 S: 1 0 -10000 -10000 0 -10000 10000 S: 1 6 10000 10000 0 -10000 10000 M: 2 S: 1 0 -10000 -10000 0 -10000 10000 S: 1 6 -10000 -10000 0 -10000 10000 V-tail mixers ------------- Three scalers total (output, roll, pitch). On the assumption that the two tail servos are physically reversed, the pitch input is inverted between the two servos. M: 2 S: 1 2 -7000 -7000 0 -10000 10000 S: 1 1 -8000 -8000 0 -10000 10000 M: 2 S: 1 2 -7000 -7000 0 -10000 10000 S: 1 1 8000 8000 0 -10000 10000 Motor speed mixer ----------------- Two scalers total (output, thrust). This mixer generates a full-range output (-1 to 1) from an input in the (0 - 1) range. Inputs below zero are treated as zero. M: 1 S: 1 3 0 20000 -10000 -10000 10000