Futaba CIU-3 USB Programming Interface

The Futaba CIU-3 USB Programming Interface is the essential bridge between your Futaba gear and your Windows PC. This high-speed adapter allows you to unlock the full potential of your S.Bus and S.Bus2 equipment, including servos, gyros, and speed controllers. By replacing the older CIU-2, the CIU-3 offers broader compatibility with modern operating systems and faster data transfer, making it easier than ever to update firmware, customize servo parameters, and fine-tune stabilization settings.

Key Applications:

• S.Bus Servo Programming: Use the free Futaba PC software to adjust travel, speed, dead-band, and "soft-start" settings on any S.Bus or S.Bus2 servo.
• Gyro Configuration: Deep-level tuning for aircraft, helicopter, and car gyros (such as the GYA or GY series), including gain curves and mode switching.
• ESC Calibration: Connect and program Futaba brushless speed controllers to adjust braking force, timing, and battery cut-off voltages.
• Firmware Updates: The primary tool for keeping your receivers and telemetry sensors up to date with the latest features and bug fixes released by Futaba.
• Telemetry Sensor Setup: Assign slot numbers and calibrate specialized sensors (RPM, Temperature, GPS) before installing them in your model.

Technical Specifications:

Software Setup Tip:

To use the CIU-3, you must first install the Futaba PC Link or S.Bus Link software available on the official Futaba website. When connecting servos or receivers to the CIU-3, you will typically need to provide external power to the device being programmed (using a 4.8V–7.4V battery pack) as the USB port alone may not provide enough current to move the servo or power complex modules.