Readytosky NOXE F722 Flight Controller EM40A 4-in-1 ESC Flytower

Readytosky NOXE F722 Flight Controller with EM40A 4-in-1 ESC Flytower

The NOXE F722 + EM40A ESC flytower is described as a powerful all-in-one flight control stack for high-performance FPV racing and freestyle drones.

It has an STM32F722 processor, an integrated 40A EM40A 4-in-1 ESC running BLHeli_S firmware, a built-in Betaflight OSD and 3-6S LiPo support. The page showed the item in stock.

Key features

• STM32F722 processor: as listed.

• Integrated 40A EM40A 4-in-1 ESC: with BLHeli_S firmware.

• Built-in Betaflight OSD: as listed.

• 3-6S LiPo support: as listed.

• Lightweight, durable PCB: as described.

• Flytower stack: an all-in-one control stack.

How a flight controller works

A flight controller is the brain of a multirotor or fixed-wing aircraft. It reads the gyroscope, and where fitted the accelerometer, barometer and compass, and runs a control loop that compares what the aircraft is doing with what the pilot asks for. It then sends new speed commands to the motors through the ESCs or servos many times each second. A faster processor and a better gyro allow a higher loop rate and a more locked-in feel.

Wiring and firmware decide what the board can do. The number of UARTs limits how many receivers, GPS units, telemetry radios and video systems you can connect, the PWM or motor outputs limit how many motors and servos it can drive, and the input voltage range must suit your battery and power module. Before you buy, check that the firmware you want to run supports the board and that its mounting pattern fits your frame.

Set up carefully. Flash a firmware that is listed as supported, configure the receiver protocol, set the motor order and direction, calibrate the accelerometer and, for larger aircraft, the compass, and always test with the propellers removed first. Keep the board isolated from vibration with soft mounts where the design calls for them, and never power it with a supply that is outside the rated input voltage.