Dreamscape F722

Dreamscape F722 is an open-hardware STM32-based flight controller designed for FPV and custom drone platforms. It targets high-performance firmware such as Betaflight, iNav, and ArduPilot while remaining developer-friendly for experimentation and customization. The design focuses on a powerful MCU, robust connectivity, and support for a wide range of peripherals to enable advanced flight control features and future expansion.

Features

MCU

STM32 F722RET6

32-bit ARM Cortex-M7 CPU

Up to 216 MHz clock speed

Large memory for advanced firmware features

Compatible with Betaflight/iNav/ArduPilot

Power System

5V input with built-in 3.3v regulator

Power distribution for peripherals

USB Power support

Protection for USB

Connectivity

USB Type-C for programming and communication

Multiple UART ports for telemetry and peripherals

I2C bus for sensors and accessories

SPI interface for high-speed communication

SWD debugging port

Sensors

ICM-42688-P 6-axis IMU (3-axis gyroscope + 3-axis accelerometer) via SPI for precise flight control and low latency

BMP280 barometer for altitude sensing

Optional external sensor support via I2C

Flight Control Outputs

8 PWM outputs

Supports DSHOT, Oneshot, and standard PWM protocols

Compatible with individual ESCs or 4-in-1 ESCs

Radio / Receiver Support

CRSF (Crossfire) support for long-range control

SBUS support for standard RC receivers

PPM support for legacy receivers

Support for external radio modules via UART

Status & Indicators

Power LED

User LED

Boot/Status LED

Expansion & Peripherals

GPS module support via UART

Telemetry Radios

VTX control (SmartAudio or Tramp)

Buzzer for audible alerts

Camera control

External sensor support (e.g., magnetometer, external barometer)

Physical Design

Compact flight-controller form factor (30x30mm)

Standard mounting pattern

Designed for custom drones

Development Friendly

Open-source hardware design files

Open-source firmware support (Betaflight, iNav, ArduPilot)

Easy debugging with SWD port

Planned Future Features

Integrated ELRS receiver

Dual-Band telemetry support

Advanced Sensor suite

Power monitoring improvements

Integrated OSD support

Specifications

Core Specifications

MCU

MCU: STM32 F722RET6

Architecture: ARM Cortex-M7

Clock Speed: Up to 216 MHz

Flash Memory: 512 KB

RAM: 256 KB

Hardware Floating Point Unit (FPU)

Inertial Measurement Unit (IMU)

IMU: ICM-42688-P

HIgh-speed SPI bus for low latency

Optimied placement for reduced vibration noise

Power System

Input Voltage: 5V (via USB or power distribution)

Built-in 3.3V regulator for peripherals

USB Power support with protection

Power distribution for connected peripherals

I/O and Connectivity

UART Ports

UART1: Receiver

UART2: GPS module

UART3: Telemetry

UART4: VTX Control

UART5: Reserved for future expansion

SPI Interfaces

SPI1: IMU (ICM-42688-P)

SPI2: Reserved for future sensor expansion

I2C Bus

I2C bus available for peripherals such as magnetometers, external barometers, etc.

SWD

SWD header for debugging and firmware development

Motor Outputs

Up to 8 PWM outputs

Suppored Protocols:

DShot150/300/600

OneShot

Multishot

Standard PWM

Compatible with individual ESCs or 4-in-1 ESCs

Receiver Support

CRSF (Crossfire) support for long-range control

SBUS support for standard RC receivers

PPM support for legacy receivers

Support for external radio modules via UART

Additional Peripherals

Buzzer output

LED Strip output

Camera control

VTX control (SmartAudio or Tramp)

Status Indicators

Power LED

User LED

Boot/Status LED

Physical Dimensions

Size: 30x30mm

Board Layers: 4

PCB Thickness: 1.6mm

Copper Weight: 1oz

Dimensions: Standard flight controller mounting pattern

Firmware Compatibility

Designed for compatibility with Betaflight, iNav, and ArduPilot

Open-source firmware support for customization and development

Development Features

Open Hardware design

Full SWD debugging support

Compatible with ST-Link Programmers

Designed for experimentation and customization

Planned Future Features

Integrated ELRS receiver for long-range control

Dual-Band telemetry support for improved communication

Advanced Sensor suite including magnetometer and external barometer support

Integrated ESC for AIO support

Integrated OSD support for on-screen display of flight information

Improved powwer monitoring with current sensing and voltage monitoring

Firmware Building

cd ~/Dreamscape-F722/firmware/betaflight/betaflight

make configs

make DREAMSCAPEF722