Tool ·
How a brushless motor works and how an ESC drives it: Kv, Kt and flux linkage in every convention, torque–speed and efficiency maps, heating, measuring a motor yourself, slot/pole windings drawn with their pattern and winding factor, six-step with Hall sensors and sensorless zero crossings, Clarke/Park, FOC current loops, SVPWM, field weakening, inverter losses, DShot frames and eRPM telemetry — animated and simulated.
Exploration ·
From magnets and coils to a quadcopter in the air: how a brushless motor is wound, how an ESC switches it in six steps, how it finds the rotor without sensors, what field-oriented control does better, and what happens when you bolt four of them to a frame — with the simulators running alongside.
Tool ·
Work out what a motor, propeller and LiPo will do together — RPM, current, voltage sag, power, efficiency, static thrust, pitch speed, thrust-to-weight, hover or cruise throttle and flight time — with warnings for the motor, ESC and battery, a throttle sweep chart and up to three setups side by side.