Introduction
Le Bidirectional USB to SBUS / SBUS to USB Converter is a professional interface module designed for RC, drone, robotique, 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
- Frame timing control
- Optional SBUS encoding and decoding
- Data integrity verification
After conversion, users can treat SBUS communication like a standard serial interface without dealing with complicated SBUS protocol details.
Caractéristiques du produit
Bidirectional USB ↔ SBUS Conversion
This module supports two working directions:
1. SBUS vers 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
2. USB vers SBUS
Convert USB UART data into SBUS output signals.
Typical applications:
- SBUS signal generation
- Flight controller testing
- RC simulator development
- UAV control system integration
Supports Multiple RC Protocols
The upgraded version supports:
- Futaba SBUS
- SBUS2
- ILS ALLENT
- WBUS
The module has been tested with various RC systems, including selected models from:
- Futaba
- 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.
Dimensions: 40mm × 20mm
Recommended for:
- Laptop testing
- Portable development
- Quick RC signal debugging
Version câble USB
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
Dimensions: 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:
- Baud rate: 100 kbps
- 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 peu de démarrage
- 1 peu d'arrêt
- No parity
3. SBUS Data Processing
The module can automatically process SBUS frames.
Users do not need to write complicated SBUS parsing programs.
The module handles:
- Bit shifting
- Channel extraction
- Frame synchronization
- Error checking
Configuration Options Explained
Different applications require different firmware configurations.
Please select the correct option before ordering.
Option 1: Basic SBUS Transparent Version
100K Baud Rate SBUS Transparent Transmission
This version keeps the original SBUS communication format.
Parameters:
- Baud rate: 100 kbps
- Start bit: 1
- Stop bits: 2
- Even parity
Convient pour:
- 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.
Option 2: Adjustable Baud Rate Version
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 peu de démarrage
- 1 peu d'arrêt
- No parity
Avantages:
- Compatible with most MCUs
- Easy software integration
- Stable communication
Convient pour:
- Arduino
- STM32
- Raspberry Pi
- PC serial software
- UART devices
Option 3: Adjustable Baud Rate + Frame Rate Control
Designed for wireless and long-distance communication.
A standard SBUS frame contains:
- 25 octets
- 16 chaînes
SBUS normally sends frames at a high frequency.
For some applications, especially:
- Wireless transmission
- Long-distance control
- Network communication
high frame rates may cause:
- Buffer overflow
- Packet congestion
- Data loss
This version allows frame interval adjustment:
10ms – 500ms
Avantages:
- Better compatibility with wireless links
- Reduced communication load
- More stable long-distance transmission
Option 4: Adjustable Baud Rate + SBUS Encoding / Décodage
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 chaînes
- Generate SBUS packets
- Handle timing and errors
This requires significant MCU resources.
With Codec
The module provides:
- SBUS decoding
- SBUS encoding
- Channel conversion
- Data verification
SBUS Decoding Output Format
Standard SBUS:
- 25 bytes per frame
- 16 chaînes
- No checksum
Codec output:
- Frame header
- 16 channel values
- Flags
- Somme de contrôle XOR
Total:
35 octets
Channel value:
- Integer format
- Gamme: 0–2047
Exemple:
Channel 1:
03E8 (HEX) = 1000
Channel 16:
0400 (HEX) = 1024
Full Version
Adjustable Baud Rate + Adjustable Frame Rate + SBUS Codec
The most complete configuration.
Comprend:
✔ USB to SBUS conversion
✔ SBUS to USB conversion
✔ Adjustable baud rate
✔ Adjustable frame rate
✔ SBUS encoding
✔ SBUS decoding
✔ XOR checksum verification
Baud rate:
- 9600
- 38400
- 57600
- 115200
Frame interval:
- 10ms–500ms
Recommended for:
- Professional UAV systems
- Long-range RC control
- Wireless telemetry
- Robotique
- Industrial automation
Standard SBUS Frame Format
A standard SBUS frame:
- Longueur: 25 octets
- Canaux: 16
- Résolution: 11-peu
- Value range: 0–2047
Exemple:
0F ED 93 1F B4 D1 87 0C 64 20 03 19 2C 64 21 0B 59 08 40 00 02 10 80 00 00Standard SBUS does not include checksum verification.
Applications
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
Exemple:
SBUS Receiver -> USB to SBUS Converter -> Wireless Data Link -> Remote Controller SystemIndustrial Control
Exemple:
SBUS Device -> USB UART -> Network Device -> Remote Control System
How to Select the Correct Version?
| Application | Recommended Version |
|---|---|
| Basic SBUS communication | 100K Transparent |
| Connect SBUS receiver to PC/MCU | Adjustable Baud Rate |
| Wireless or long-distance transmission | Débit en bauds + Fréquence d'images |
| UAV professional development | Full Version with Codec |
| Generate SBUS output | SBUS 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.
Conclusion
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.
Poser une question
Merci pour votre réponse. ✨