RadioLink F722 Betaflight Flight Controller
Technical Highlights
STM32F722RET6 Processing Platform
The RadioLink F722 uses an STM32F722RET6 main processor for Betaflight flight control, sensor processing, OSD functions and multi-interface peripheral management.
ICM42688 Gyroscope Variant
This hardware variant uses an ICM42688 gyroscope. The RADIOLINKF722 firmware target must be used so that the flight-controller firmware loads the appropriate hardware configuration.
128MB Blackbox Storage
Built-in 128MB Blackbox storage records flight data for filter analysis, PID tuning and troubleshooting without requiring a removable memory card.
Eight Motor Outputs
M1 through M8 outputs support conventional quadcopters as well as compatible Y6, X8, octocopter and other multi-axis configurations available in the selected flight-control firmware.
Digital and Analog Video Connections
Dedicated connectors and solder pads provide power, serial-control and video connections for compatible DJI or CADDX digital FPV equipment and analog camera or video-transmitter systems.
Integrated Multi-Voltage BEC
Integrated 3.3V, 4.5V, 5V and 12V regulated outputs support compatible receivers, GPS modules, cameras, video transmitters and other onboard peripherals.
Core Specifications
| Product Name | RadioLink F722 Flight Controller |
|---|---|
| Product Type | Open-source F7 flight controller |
| MCU | STM32F722RET6 |
| Gyroscope | ICM42688 |
| Barometer | BMP280 or DPS310, depending on production batch |
| OSD Chip | AT7456E |
| Blackbox | Built-in 128MB flight-log storage |
| Firmware | Betaflight |
| Firmware Target | RADIOLINKF722 |
| USB Port | USB Type-C |
| Input Voltage | 3–6S LiPo |
| Manufacturer-Listed Size | 30.5 × 30.5 mm |
| Weight | Approximately 9.5 g |
| Operating Temperature | −30°C to 85°C, manufacturer-listed |
Power Specifications
| Battery Input | 3–6S LiPo |
|---|---|
| 3.3V BEC | 300mA |
| 4.5V BEC | 500mA |
| 5V BEC | 3A |
| 12V BEC | 3A |
| 12V Output Control | USER1 software-controlled BEC switch |
| Battery Voltage Scale | 110 |
Interfaces and Functions
| Motor Outputs | M1–M8 |
|---|---|
| UART Ports | 5 |
| Receiver Inputs | SBUS and CRSF |
| ESC Protocols | PWM, bidirectional DShot and OneShot |
| ESC Telemetry | Supported |
| I2C | Supported |
| HD Digital Video Connection | Dedicated plug-and-play power and signal connection for compatible DJI or CADDX equipment |
| Analog Video Connection | Dedicated 4-pin connector and solder-pad connections |
| Camera Control | Betaflight camera parameter-control pad supported |
| OSD | Integrated analog OSD |
| LED Strip | Supported through dedicated solder pads |
| Buzzer | Supported through dedicated solder pads |
| RSSI | Supported through dedicated solder pads |
| ESC Connections | Two dedicated ESC connectors plus direct-solder motor and telemetry pads |
| GPS Connection | Dedicated connector with I2C and UART signals |
Recommended Applications
FPV racing and freestyle quadcopters
Long-range multirotor aircraft
Y6, X8 and compatible octocopter configurations
Aircraft requiring analog or supported digital FPV-system wiring
Projects requiring onboard Blackbox flight-data storage
Open-source flight-control and secondary-development projects
Installation and Firmware Notes
Use the RADIOLINKF722 firmware target. Firmware compiled for another F722 board may not match this hardware configuration.
This product page describes the ICM42688 gyroscope variant shown in the supplied files.
Confirm whether the supplied production batch uses a BMP280 or DPS310 barometer before recording component-level inventory data.
RadioLink also provides INAV firmware for the F722, but only the matching manufacturer-supported firmware package should be used.
Back up the existing flight-controller configuration before flashing or changing firmware.
When two ESCs are connected, follow the manufacturer wiring instructions for the BAT, CURR and TLM lines.
When DJI SBUS is used, avoid assigning another receiver to the same R2/T2 receiver connection.
Confirm the voltage requirement and current demand of every peripheral before selecting a BEC output.
GPS, receiver, ESC, camera and video-transmission devices shown in wiring diagrams are connection examples rather than confirmed package contents.
FAQ
What is the correct Betaflight target for this flight controller?
Use RADIOLINKF722. Firmware intended for another F722 flight controller may use different pin assignments, sensors or flash-memory settings.
Which processor and gyroscope does this version use?
The supplied version uses an STM32F722RET6 processor and an ICM42688 gyroscope.
Does every production batch use the same barometer?
No. The manufacturer specifies BMP280 or DPS310 depending on the hardware batch. Check the supplied board or batch information when the exact barometer model is required.
How much Blackbox storage is built in?
The flight controller has 128MB of onboard Blackbox storage for flight-log recording.
What battery voltage does the flight controller support?
The manufacturer specifies 3–6S LiPo input.
Can the F722 control eight motors?
Yes. M1 through M8 outputs are provided for compatible configurations such as X8, Y6 and octocopters.
Does the flight controller contain a digital video transmitter?
No. It provides power, UART and control connections for compatible digital FPV equipment, but the digital video transmitter is a separate device.
Does it support analog FPV video?
Yes. It provides analog camera and video-transmitter connections together with an integrated AT7456E analog OSD.
Can INAV firmware be installed?
RadioLink provides INAV firmware for the F722. Use only the official firmware package intended for the exact RADIOLINKF722 hardware revision.
Which receiver signals are supported?
The manufacturer documentation specifies SBUS and CRSF receiver inputs.
B2B Procurement FAQ
What exact model should be stated on a purchase order?
Specify RadioLink F722 Flight Controller, STM32F722RET6, ICM42688 variant and Betaflight target RADIOLINKF722.
Should the gyroscope version be confirmed during quotation?
Yes. RadioLink lists ICM42688 and ST LSM6DSK320X hardware versions. This page is for the ICM42688 version shown in the supplied product files.
Should the barometer model be confirmed during quotation?
Yes. Production batches may use either BMP280 or DPS310. Confirm the fitted component when the exact sensor model is important to the order.
Are the ESC, GPS, receiver, camera and video transmitter included?
These devices are shown as connection examples. Their inclusion must not be assumed and should be confirmed against the quoted package contents.
What should be checked during incoming inspection?
Verify the RADIOLINKF722 board marking, processor and sensor revision, USB connector, solder pads, sockets, Blackbox recognition and physical board condition.
Should firmware be installed before delivery?
The required firmware and configuration should be confirmed during quotation. Any firmware installation must use the RADIOLINKF722 target or the matching RadioLink-provided INAV package.
Are firmware version, package contents and production revision fixed?
These details may vary by production batch and should be confirmed during quotation before the order is finalized.
Are MOQ, lead time and packaging fixed?
MOQ, lead time, available quantity and packaging requirements must be confirmed during quotation.
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