series (ARM Cortex-M4), which provides the high performance needed for complex PID calculations.

(gyroscope and accelerometer) to detect the drone’s tilt and motion. Processing: It runs a custom-written PID controller

“Version 2.2 added a personality matrix. Do you find it objectionable?”

An IMU (like the MPU6050) for tilt and motion sensing and often a GNSS module for position data. Power System: