PX4 User Guide

# DroPix Flight Controller

The Drotek® DroPix autopilot is based on the Pixhawk®-project FMUv2 open hardware design. It runs the PX4 Flight Stack on the NuttX OS.

The DroPix system includes integrated multithreading, a Unix/Linux-like programming environment, completely new autopilot functions such as Lua scripting of missions and flight behavior, and a custom PX4 driver layer ensuring tight timing across all processes.

Dropix

Note This flight controller is manufacturer supported.

# Key Features

  • Advanced 32 bit ARM Cortex® M4 Processor running NuttX RTOS
  • 14 PWM/servo outputs (8 with failsafe and manual override, 5 auxiliary, high-power compatible)
  • Abundant connectivity options for additional peripherals (UART, I2C, CAN)
  • Integrated backup system for in-flight recovery and manual override with dedicated processor and stand-alone power supply
  • Backup system integrates mixing, providing consistent autopilot and manual override mixing modes
  • Redundant power supply inputs and automatic failover
  • External safety button for easy motor activation
  • Multicolor LED indicator
  • High-power, multi-tone piezo audio indicator
  • microSD card for long-time high-rate logging
  • Sensors
    • ST Micro L3GD20 3-axis 16-bit gyroscope
    • ST Micro LSM303D 3-axis 14-bit accelerometer / magnetometer
    • Invensense® MPU 6000 3-axis accelerometer/gyroscope
    • MEAS MS5611 barometer
  • Standard MK style mounting holes 45 mm x 45 mm (M3 holes)
  • Dimensions
    • Size: 67506 mm
    • Weight: 15g (without connectors)

# Where to buy

DroPix Autopilots & Accessories

# Documentation

DroPix User's Guide

# Wiring Guides

The following diagrams show the Dropix connector information (for more information see the drotek documentation).

front connectors front connectors

# Building Firmware

Tip Most users will not need to build this firmware! It is pre-built and automatically installed by QGroundControl when appropriate hardware is connected.

To build PX4 for this target:

make px4_fmu-v2_default

# Serial Port Mapping

UART Device Port
UART1 /dev/ttyS0 IO debug
USART2 /dev/ttyS1 TELEM1 (flow control)
USART3 /dev/ttyS2 TELEM2 (flow control)
UART4
UART7 CONSOLE
UART8 SERIAL4

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