FlySky FS-BS4 receiver

Order the FlySky FS-BS4 receiver - miniature reliability for racing drones

The FlySky FS-BS4 receiver is an ultra-compact solution for micro and mini drones. It provides communication between your remote and the flight controller. This micro receiver is designed for FPV racing and Whoop drones. You will get a stable signal with minimal weight and size. This is a key component for assembling any modern mini device.

Key advantages of the device

• Extremely small dimensions and weight. Does not make the drone heavier or increase its size.

• Communication protocol AFHDS 2A. Provides noise immunity and fast response.

• 4 control channels in micro format. Sufficient for basic control functions.

• Power supply via SBUS port without a separate wire. Simplifies the connection diagram and saves space.

• Fully compatible with FlySky remote controls (i6, i6X, i10). Works with popular budget transmitters.

The essence of the work and the principle of communication

This is a micro-receiver of the FlySky system. It receives 2.4 GHz radio signals from your remote control. The signal is modulated and protected by the AFHDS 2A protocol. The receiver decodes the signal and extracts control commands from it. Data is transmitted to the flight controller via a single wire using the SBUS protocol. It is a compact and digital alternative to analogue PWM signals.

Technical characteristics and scope

The FlySky FS-BS4 receiver measures only 20.5 x 11.5 mm. Its weight is about 1 gram, which is critical for micro-drones. Operating voltage - from 3.3V to 10V. It connects directly to the SBUS enabled flight controller. Only one three-wire cable is used for power and data.

It is an ideal choice for Tiny Whoop and Toothpick racing drones. It is also suitable for any mini-devices where every gram is important. It is often used in micro drones for indoor flights. The communication range in open space reaches 500-700 meters. Requires a compatible remote control, such as the FlySky FS-i6X.

Installation is extremely easy thanks to its micro dimensions. Secure it to the flight controller board using tape. Make sure the antenna does not touch the carbon fiber. Carbon shields the signal and can significantly reduce the range. Place the antenna outside the frame for better reception.

The pairing procedure with the remote control takes a minute. Power on the receiver by pressing the Bind button or shorting the contacts. Activate the binding mode in the menu of your FlySky remote control. After confirmation, the connection will be established automatically. Check the channels in your controller software.

Specifications

• FS-BS4 receiver channels: 4 channels
• Receiver FS-BS4
• Wireless Frequency: 2.4GHz
• Receiver FS-BS4
• Wireless protocol: AFHDS 2A
• FS-BS4 Receiver Data Port: PWM/PPM/i.bus/s.bus.