Руководство по преобразователю USB в SBUS или SBUS в USB | Конфигурация адаптера RC БПЛА

Введение

The Bidirectional USB to SBUS / SBUS to USB Converter is a professional interface module designed for RC, БПЛА, робототехника, and industrial control applications.

It provides a bridge between SBUS receivers, USB computers, microcontrollers, and UART-based devices, allowing users to easily exchange control signals and channel data between different systems.

Unlike simple USB-UART converters, this module is specially designed for SBUS communication. It handles:

  • SBUS signal level conversion
  • SBUS protocol parsing
  • UART communication conversion
  • Управление синхронизацией кадров
  • Optional SBUS encoding and decoding
  • Data integrity verification

После преобразования, users can treat SBUS communication like a standard serial interface without dealing with complicated SBUS protocol details.

Особенности продукта

Bidirectional USB ↔ SBUS Conversion

This module supports two working directions:

1. СБУС на USB

Convert RC receiver SBUS signals into USB serial data.

Typical applications:

  • Reading RC receiver channels on a PC
  • UAV flight controller development
  • RC signal monitoring
  • Data recording and analysis
SBUS to USB converter wiring diagram showing SBUS receiver connection to USB device
SBUS to USB converter wiring diagram showing SBUS receiver connection to USB device

2. USB-SBUS

Convert USB UART data into SBUS output signals.

Typical applications:

  • SBUS signal generation
  • Flight controller testing
  • RC simulator development
  • UAV control system integration
USB to SBUS converter wiring diagram showing USB device connection to SBUS output
USB to SBUS converter wiring diagram showing USB device connection to SBUS output

Supports Multiple RC Protocols

The upgraded version supports:

  • Futaba SBUS
  • СБУС2
  • ОНИ УХОДЯТ
  • WBUS

The module has been tested with various RC systems, including selected models from:

  • Футаба
  • DJI Agriculture
  • WFLY
  • RadioLink
  • Walkera

Compatibility depends on whether the device follows the standard protocol.

Hardware Versions

USB Direct Plug Version

The module includes a built-in USB Type-A male connector.

No USB cable is required.

Just connect it directly to the computer like a USB flash drive.

Размеры: 40mm × 20mm

Recommended for:

  • Laptop testing
  • Portable development
  • Quick RC signal debugging

Версия USB-кабеля

The module includes a high-quality USB cable.

Recommended for:

  • Desktop computers
  • Test benches
  • Applications where the device needs to be placed away from the computer
  • Preventing mechanical stress on the USB port

Размеры: 55mm × 32mm

Why Is an SBUS Converter Needed?

Understanding SBUS Protocol

SBUS is a digital RC communication protocol originally developed by Futaba.

Although SBUS is similar to UART, it is not a standard UART communication format.

Standard SBUS parameters:

  • Скорость передачи данных: 100 кбит/с
  • Start bit: 1
  • Stop bits: 2
  • Even parity

Most computers, microcontrollers, and serial applications cannot directly process this format.

Problems include:

  • Unsupported baud rate
  • Incorrect timing
  • Communication errors
  • High data loss rate

What Does Our Converter Solve?

The module performs three important functions:

1. Electrical Signal Conversion

Converts SBUS electrical signals into normal UART logic levels.

2. Protocol Conversion

Converts the special SBUS communication format into standard UART:

Supported UART baud rates:

  • 9600
  • 38400
  • 57600
  • 115200

Standard output format:

  • 1 стартовый бит
  • 1 стоп-бит
  • Нет паритета

3. SBUS Data Processing

The module can automatically process SBUS frames.

Users do not need to write complicated SBUS parsing programs.

The module handles:

  • Сдвиг битов
  • Извлечение канала
  • Frame synchronization
  • Error checking

Configuration Options Explained

Different applications require different firmware configurations.

Please select the correct option before ordering.

Вариант 1: Basic SBUS Transparent Version

100K Baud Rate SBUS Transparent Transmission

This version keeps the original SBUS communication format.

Parameters:

  • Скорость передачи данных: 100 кбит/с
  • Start bit: 1
  • Stop bits: 2
  • Even parity

Подходит для:

  • Devices already supporting native SBUS communication
  • Basic SBUS signal monitoring

Important Note

100K baud rate is not a common UART speed.

Many MCUs and serial devices do not support it directly.

Please confirm compatibility before purchasing this version.

Вариант 2: Версия с регулируемой скоростью передачи данных

This is the recommended version for most development applications.

The module converts SBUS into standard UART communication.

Supported baud rates:

  • 9600
  • 38400
  • 57600
  • 115200

Output format:

  • 1 стартовый бит
  • 1 стоп-бит
  • Нет паритета

Преимущества:

  • Совместим с большинством микроконтроллеров.
  • Easy software integration
  • Stable communication

Подходит для:

  • Arduino
  • STM32
  • Raspberry Pi
  • PC serial software
  • UART devices

Вариант 3: Регулируемая скорость передачи данных + Frame Rate Control

Designed for wireless and long-distance communication.

A standard SBUS frame contains:

  • 25 байты
  • 16 каналы

SBUS normally sends frames at a high frequency.

For some applications, especially:

  • Wireless transmission
  • Long-distance control
  • Network communication

high frame rates may cause:

  • Переполнение буфера
  • Packet congestion
  • Data loss

This version allows frame interval adjustment:

10ms – 500ms

Преимущества:

  • Better compatibility with wireless links
  • Reduced communication load
  • More stable long-distance transmission

Вариант 4: Регулируемая скорость передачи данных + SBUS Encoding / Декодирование

Professional version for UAV and industrial applications.

The integrated codec handles SBUS protocol processing automatically.

Without Codec

Users need to manually:

  • Parse SBUS frames
  • Extract 16 каналы
  • Generate SBUS packets
  • Handle timing and errors

This requires significant MCU resources.

With Codec

The module provides:

  • Декодирование SBUS
  • SBUS encoding
  • Channel conversion
  • Data verification

SBUS Decoding Output Format

Стандартный СБУС:

  • 25 байт на кадр
  • 16 каналы
  • Нет контрольной суммы

Codec output:

  • Заголовок кадра
  • 16 channel values
  • Flags
  • контрольная сумма XOR

Общий:

35 байты

Channel value:

  • Integer format
  • Диапазон: 0–2047

Пример:

Channel 1:
03E8 (HEX) = 1000

Channel 16:
0400 (HEX) = 1024
SBUS decoder output 35 byte frame format with 16 channel values and XOR checksum
SBUS decoder output 35 byte frame format with 16 channel values and XOR checksum

Full Version

Регулируемая скорость передачи данных + Регулируемая частота кадров + SBUS Codec

The most complete configuration.

Включает:

✔ USB to SBUS conversion
✔ SBUS to USB conversion
✔ Adjustable baud rate
✔ Adjustable frame rate
✔ SBUS encoding
✔ SBUS decoding
✔ XOR checksum verification

Скорость передачи данных:

  • 9600
  • 38400
  • 57600
  • 115200

Frame interval:

  • 10ms–500ms

Recommended for:

  • Профессиональные системы БПЛА
  • Long-range RC control
  • Wireless telemetry
  • Робототехника
  • Industrial automation

Standard SBUS Frame Format

A standard SBUS frame:

  • Длина: 25 байты
  • Каналы: 16
  • Разрешение: 11-кусочек
  • Value range: 0–2047

Пример:

0F ED 93 1F B4 D1 87 0C 64 20 03 19 2C 64 21 0B 59 08 40 00 02 10 80 00 00

Standard SBUS does not include checksum verification.

SBUS protocol 25 byte frame format with 16 channel data structure
SBUS protocol 25 byte frame format with 16 channel data structure

Приложения

UAV Development

  • Flight controller debugging
  • RC receiver data reading
  • Custom UAV control systems

RC Signal Monitoring

  • USB connection to PC
  • Channel value monitoring
  • RC system testing

Wireless Control Extension

Пример:

SBUS Receiver -> USB to SBUS Converter -> Wireless Data Link -> Remote Controller System

Industrial Control

Пример:

SBUS Device -> USB UART -> Network Device -> Remote Control System
sbus-to-uart-debug-tool-with-encoder
sbus-to-uart-debug-tool-with-encoder
uart-to-sbus-debug-tool-encode
uart-to-sbus-debug-tool-encode

How to Select the Correct Version?

ПриложениеRecommended Version
Basic SBUS communication100K Transparent
Connect SBUS receiver to PC/MCUРегулируемая скорость передачи данных
Wireless or long-distance transmissionСкорость передачи данных + Частота кадров
UAV professional developmentFull Version with Codec
Generate SBUS outputSBUS Encoding Version

Customization and Technical Support

This product is a configurable electronic module.

The production and shipping time depends on:

  • Selected configuration
  • Firmware version
  • Customer requirements

Product prices are before tax.

For OEM, firmware customization, or special SBUS applications, please contact our engineering team.

Заключение

The USB to SBUS / SBUS to USB Converter provides a reliable solution for connecting RC systems with modern digital platforms.

With multiple configuration options, adjustable communication parameters, and integrated SBUS processing, it is suitable for:

  • UAV developers
  • RC enthusiasts
  • Robotics engineers
  • Industrial control developers

Choose the correct configuration based on your application requirements.

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