Flight Controller-F722 - Manual

BOTWING Flight Controller-F722 - Manual

About Botwing F722

Power meets precision with BotWing F722, the elite flight controller for pilots who demand total control. Built with the powerful STM32F722 MCU and ICM42688P gyro, BotWing F722 offers expanded capabilities including 4 motor outputs and 2 servo outputs - ideal for advanced drone configurations.

With full compatibility with BetaFlight and iNav, BotWing F722 unlocks powerful mission planning and autonomous navigation, giving you the freedom to design complex flight missions with confidence. Its robust telemetry, 32MB onboard Blackbox, plug-and-play DJI Air Unit port, and flexible 5 UART layout make it the perfect heart for serious builds.

Whether you’re racing, exploring, mapping, or executing precision flights, BotWing F722 ensures flawless execution and endless potential - all housed within a clean 30.5×30.5mm mounting holes.

Layout

Specification

DimensionsWW	40x40mm
Firmware	BetaFlight and iNav
Firmware Target Name	BOTWING F722
Mounting	30.5mm x 30.5mm (3.2mm hole size)
MicroController(MCU)	STM32F722
Motor Outputs	4 Motors
Gyro (IMU)	ICM42688P
Power Input	2S-6S LiPO
On Screen Display (OSD)	AT7456E
BlackBox-Flash	32 MB
Buzzer	BZ+ and BZ- pad used for 5V Buzzer
i2C	SDA & SCL Pads for sensors like Magnetometer etc.
RSSI	Named as RSSI on the front side
Boot Button	Press boot button, then power FC to activate DFU mode for flashing.
5 x LED Pad	Supported by BetaFlight firmware
Connector	BetaFlight Standard
Weight	9.35gm
Barometer	DPS310XTSA1
OSD Chip	AT7456E
USB Port Type	Type-C
4.5V Pads	4 group of 4.5Vpads is used
5V Bec	3 Amp
9V Bec	2.5 Amp
3.3V Regulator	500 mA
USB 4.5V	For Receiver and GPS module
ESC Signal Pads	M1 - M4 and 2 servos on top side
UARTs	UART 1 (VTX), UART 2 (Receiver), UART 3 (Camera), UART 4 (ESC), UART 6 (GPS)
Camera Control Pad	Present

Package Include

Connections

Method 1 - Soldering

Method 2 - Connectors

LED Indication

RED LED 1, LED 2	Sensor 3.3,5 voltage indication
Blue LED	FC Status Light
Green LED	FC Status Ligh
Unlit	USB disconnected and disarmed
Lit	USB disconnected and armed,
Barometer	USB connected and disarmed,
OSD Chip	USB connected and arming command prevented
USB Port Type	FC Status Light
4.5V Pads	5V Power indicator.
5V Bec	9V Power indicator.

LED Connection Options:

You can connect LEDs to the F722 flight controller in two ways:

1. Solder Pads: Use the dedicated 5V, GND, and Signal pads on the board.
2. 4-Pin Connector: Use the 4-pin LED connector which includes: 5V, GND, Signal In, and Signal Out.

Daisy Chain Functionality

1. By default, the LED connectors are daisy-chained, allowing each connector to control a separate LED strip independently.
2. If you want all connectors to control standard LEDs in parallel (same signal to all strips), follow these steps:

Parallel LED Setup Instructions

1. Cut the Signal Out wire on all connectors except the first one
2. Bridge the small pad next to the signal pad on the flight controller for each modified connector.
3. This reroutes all connectors to share the same signal line from the first connector, enabling synchronized LED behavior.

Note: Perform this modification only on three connectors. The first connector already supplies the master signal.

Avoid Sbus or RX use with DJI or Vice versa

When using an SBUS receiver, connect its signal wire to the RX2 pad located on the front side of the flight controller, which internally maps to UART2.

If you’re using a DJI Air Unit (O3, Link, Vista, or Air Unit V1), it’s important to disconnect the SBUS signal wire from the Air Unit harness to ensure the flight controller recognizes the correct input. Use tweezers to carefully remove or cut the SBUS wire from the 6-pin connector, and thoroughly insulate the exposed end to prevent shorts.

For ELRS receivers, connect the TX and RX lines to the T2 and R2 pads on the flight controller. However, if the ELRS receiver fails to be recognized when a DJI Air Unit is connected, follow the same step: disconnect the SBUS signal wire from the Air Unit harness to resolve the conflict.