ENGINEERING CATEGORY
Flight Controller Engineering
Flight controller design, UAV control architecture, ArduPilot, PX4, STM32H7, IMU, GNSS, and autonomous flight systems.
40 ARTICLES
Flight Controller Engineering
Flight controller design, UAV control architecture, ArduPilot, PX4, STM32H7, IMU, GNSS, and autonomous flight systems.
Integrating KiCad and hwdef
A Practical Development Flow for Linking PCB Design Data and ArduPilot’s hwdef.dat
Impedance
Practical PCB Design Using Characteristic Impedance Design Calculations and Tools
Transmission Lines
The Physics of Signals Propagating as 'Waves' and the Theory of Reflection and Termination
S-Parameters
Methods for Describing High-Frequency Circuit Characteristics in the Frequency Domain and Practical Interpretation
Reference Planes
An Integrated Understanding of Their Role in Signal Quality and EMI
Power Planes
Designing Power Distribution Networks (PDN) and Suppressing Plane Resonance
Crosstalk
Electromagnetic Coupling Between Adjacent Traces and Suppression Techniques
Differential Pairs
Length Matching, Coupling, and Impedance Management in Differential Signal Routing such as CAN and USB
Via Design
Via Technologies for High-Speed Signals such as Stubs, Back-drilling, and Via-in-Pad
4-Layer PCB Design
Principles of Stack-up Configuration and Layer Assignment
Mistakes That DRC Alone Cannot Prevent
The Limits of Automated Design Rule Checks and Areas Requiring Human Review
Thermal Design
Thermal Design and Thermal Simulation of Heat-Generating Components on FC Boards
EMC Design
Systematic Design Approaches and Test Items for Regulatory Compliance
EMI Countermeasures
Mitigation Methods by Source and PCB Layout Implementation
EMI Sources
Generation Mechanisms of Radiated and Conducted Noise in FC Design
Return Current
Design Principles for High-Frequency Signal Return Paths and Minimum Loop Area
Ground Design
GND Plane Splitting, Star Connection, and Single-Point Grounding
Decoupling Capacitors
Placement, Capacitance Selection, and the Impact of ESL
LDO vs. DC-DC
Comparison of Characteristics and Selection Criteria for Optimal Application
Power Design
Power Architecture Design for the Entire FC
SITL
Building and Utilizing a Software In The Loop Simulation Environment
L1 Controller
Mathematical Principles of ArduPilot's Path Following Algorithm
Optical Flow
Principles of Optical Flow Sensors and Their Application to Low-Altitude and Indoor Navigation
Precision Landing
Implementation and Sensor Design
RTK-GPS
Practical Guide to F9P Configuration, RTCM Correction Delivery, and Accuracy Verification
GPS and INS Integration
Optimizing u-blox Settings and Implementing GPS-INS Integration in ArduPilot
EKF Tuning
Log Analysis Procedures and Practical Parameter Adjustment
What is EKF
State Estimation Mechanisms in ArduPilot
Multi-GNSS Design
Anti-Jamming Strategies and Multi-Constellation Optimization
GPS Antenna Placement
Design Guidelines for Maximizing GNSS Reception Performance
Barometer Design
Selection of Pressure Sensors and Countermeasures for Pressure Disturbances
Compass Implementation
Magnetic Sensor Mounting Design and Calibration
Gyroscopes and Accelerometers
Sensor Fusion Roles and Mathematical Error Models
IMU Vibration Mitigation
Mechanical Dampening Design and Digital Filter Implementation
IMU Fundamentals
How MEMS Sensors Power Flight Controller Attitude Estimation
ArduPilot Board Compatibility
The Structure of hwdef.dat and Minimum Hardware Requirements
STM32H7 Series Comparison
Selection Criteria for H743, H745, H753, and H7A3
STM32 Selection
Microcontroller Criteria for Flight Controller Development
UAV Control Architecture
Hierarchical Structure of Attitude Control, Position Control, and Mission Layers
What is a Flight Controller?
Dissecting the Brain of a Drone
ENGINEERING CATEGORY
ESC Engineering
Electronic speed controllers, BLDC motor control, power stages, firmware, switching devices, and propulsion electronics.
5 ARTICLES
ESC Engineering
Electronic speed controllers, BLDC motor control, power stages, firmware, switching devices, and propulsion electronics.
ESC Power System Design
Details on Input Capacitors, Gate Drivers, and Dead-Time Control
Comparison of ESC-FC Communication Protocols
Organizing Response Performance and Features of PWM, OneShot, DShot, and DroneCAN
Comparison of Drive Methods
Differences Between Trapezoidal Wave, Sine Wave, and FOC, and the Optimal Solution for Drones
Operating Principles of BLDC Motors
Mechanisms of Torque Generation and Determination of Rotational Speed
Basic Principles of ESC
Electronic Circuits for Precisely Rotating Brushless Motors
ENGINEERING CATEGORY
Motors Engineering
UAV motors, electromagnetic design, propeller matching, thermal behavior, efficiency, and propulsion-system engineering.
0 ARTICLES
Motors Engineering
UAV motors, electromagnetic design, propeller matching, thermal behavior, efficiency, and propulsion-system engineering.
ENGINEERING CATEGORY
Sensors Engineering
IMU, GNSS, barometers, magnetometers, optical flow, sensor fusion, filtering, and vibration isolation.
0 ARTICLES
Sensors Engineering
IMU, GNSS, barometers, magnetometers, optical flow, sensor fusion, filtering, and vibration isolation.