FIELD MANUAL
Operational guides, technical references, and deep-dive data for the professional pilot.
Build Guide
Comprehensive ArduPilot drone build guide. Step-by-step instructions for component selection, flight controller wiring diagrams, power systems, and frame assembly for Multicopters and Planes.
Power Systems
Comprehensive ArduPilot power systems guide. Deep dive into battery chemistry physics, C-rating myths, voltage sensing, and power distribution architecture for critical avionics.
Flight Modes
Detailed analysis of all ArduPilot flight modes. Comprehensive engineering breakdown of behavior logic, failsafe dependency matrices, and tuning parameters for Copters and Planes.
MAVLink Internals
Understanding the data stream. Message definitions, stream rate optimization, packet parsing, and ExpressLRS bandwidth management for telemetry.
EKF Failsafes
Critical safety behaviors. Variance monitoring, lane switching logic, sensor fallback strategies, and emergency failsafe triggers in ArduPilot EKF3.
Control Architecture
Inside the black box. Exploring the PIDs, Navigators, attitude controllers, and Mixer strategies that keep your autonomous vehicle stable in the air.
Custom Airframes
Engineering new vehicle types. Frame class architecture, C++ matrix definitions, custom motor layouts, and Lua scripting mixers for ArduPilot.
Sensor Architecture
Hardware integration deep dives. Understanding drivers, bus priorities, and fusion logic for GPS modules, Optical Flow, Rangefinders, and IMUs.
Companion Computers
Integration guides for onboard companion computers. MAVLink routing, vision processing, computer vision, and advanced scripting with Raspberry Pi and Jetson.
ExpressLRS & MAVLink
MAVLink ELRS Radio Integration. Configure ExpressLRS packet rates, telemetry ratios, Airport mode serial bridges, and ELRS Wi-Fi Backpack telemetry for ArduPilot HUDs.
Navigation & Mission
The brain of the autopilot. L1 and Spline path planning, terrain following algorithms, waypoint navigation, and the mission command state machine.
ChibiOS Integration
The OS beneath the flight code. Threading priorities, DMA arbitration, hardware timers, and how ArduPilot maps to the ChibiOS HAL layer.
Object Avoidance
Prevent collisions. Simple proximity avoidance logic, BendyRuler, Dijkstra path planning algorithms, and ADS-B manned aircraft traffic avoidance.
Advanced Tuning
Master the frequency domain. System Identification (SysID), AutoTune algorithm logic, rate PIDs, and Harmonic Notch Filter configuration.
Log Analysis
Decode the black box. Interpreting DataFlash BIN logs, diagnosing mechanical vibration, evaluating EKF innovations, and analyzing power failures.
Build System
Compile and Customize. The Waf build system, GDB debugging setup, custom compilation flags, and signing firmware for secure boot verification.
Flashing & Cloning
Deep dive into firmware management. Cloning flight controllers with OpenOCD, bootloader recovery, and flashing ArduPilot without a GCS.
Remote ID
Digital License Plates. Hardware setup, OpenDroneID protocol configuration, and troubleshooting for FAA and EASA regulatory compliance.
ARDUPILOT PARAMETER REFERENCE
The complete engineering reference for every ArduPilot parameter. Fully searchable, code-linked, and formatted with exact C++ default values, ranges, and LaTeX formulas.
MAVLINK MESSAGE REFERENCE
Deep technical reference of every MAVLink protocol message implemented in ArduPilot. Comprehensive RX/TX scheduling, transmission logic, and practical ground station use cases.
MISSION COMMAND REFERENCE
The definitive guide to every ArduPilot mission command. In-depth codebase analysis of Navigation, Condition, and Do commands with copy-paste ready mission planning examples.
Mission Scenarios
Real-world ArduPilot mission plans for Photogrammetry, Infrastructure Inspection, Delivery, and Agriculture. Complete copy-paste ready command sequences and operational workflows.
TECHNICAL GLOSSARY
The complete A-Z technical dictionary of ArduPilot, MAVLink protocol, and drone engineering terminology. Every concept fully defined, cross-linked, and code-referenced.