FLYSKY FS-R4M Receiver Instruction Manual

: June 5, 2024
: Flysky

Table of Contents

Introduction
Receiver overview
Product specifications
Binding
Firmware update
Failsafe
Servo Frequency
Compatibility
- ****Attentions:
Certifications
Documents / Resources
References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

FLYSKY FS-R4M Receiver

Introduction

FS-R4M based on ANT protocol is a 4-channel mini receiver with single external antenna, bidirectional transmission and micro size. It adapts micro/mini cars.

Receiver overview

FLYSKY FS-R4M - Overview

[1] CH1 [4] CH4 [7] Signal pin
[2] CH2 [5] Antenna [8] Power anode
[3] CH3 [6] LED [9] Power cathode

Note
Interface specification: ZH1.5mm-3P

Product specifications

Product Model: FS-R4M
Adaptive transmitters: Transmitters with ANT protocol, such as FS-G7P
Adaptive Models: Mini/micro cars
Numbers of Channels: 4
RF: 2.4GHz ISM
Maximum Power: < 10dBm (e.i.r.p.) (EU)
Antenna: Single Antenna
Distance: >50m (ground)
2.4G Protocol: ANT
Resolution: 1024
Data Output: PWM
Input Voltage Range: 3.5-9V/DC
Online Update: Yes
Temperature Range: -10°C ~ +60°C
Humidity Limit: 20% ~ 95%
Dimensions: 20.013.07.2mm
Weight: 3g
Certification: CE, FCC ID: 2A2UNR4M00

Binding

The receiver will automatically enter the bind mode when it is powered on. It supports two-way binding and one-way binding. The transmitter will display the information returned from the receiver after the two-way binding is completed.

Follow the steps below to bind in two-way binding:

Select [ANT 2 WAY] for RF standard of the transmitter, then put the transmitter in bind mode.
When the receiver is powered on and waits for two seconds, it will automatically enter the bind mode if it does not connect to the transmitter, and the LED of the receiver should be flashing.
When the LED of the receiver is solid on, the binding process should be complete. The transmitter exits the bind mode automatically.
Check to make sure the transmitter and receiver functions are working correctly, repeat steps 1 to 3 (binding process) if any problems arise.

Follow the steps below to bind in one-way binding:

Select [ANT 1 WAY] for RF standard of the transmitter, then put the transmitter in bind mode.
When the receiver is powered on and waits for two seconds, it will automatically enter the bind mode if it does not connect to the transmitter, and the LED of the receiver should be flashing.
When the LED of the receiver is in slow flashing state, the binding process should be completed. You need to manually put the transmitter to exit the bind mode. Then the LED of the receiver is solid on, indicating that the binding process is completed.
Check to make sure the transmitter and receiver functions are working correctly, repeat steps 1 to 3 (binding process) if any problems arise.

Note: Put the transmitter in bind mode first, then put the receiver in bind mode. If the binding is not completed within ten seconds, the LED of the receiver will enter its slow flashing state.

Firmware update

The firmware of this receiver is updated through the FlyskyAssistant (Only version 3.0 or above is supported. The firmware of FlyskyAssistant is available on the Flysky official website).
This receiver can be updated via the following two ways:

After the binding between the transmitter and the receiver (the LED of the receiver is solid on), connect the transmitter to the computer, then open the FlyskyAssistant on the computer to update the firmware.
Connect the transmitter to the computer, and connect the signal pins of the CH3 nd the CH4. Then power on the receiver. The receiver will enter the forced update mode (the LED of the receiver operates in three-flash-one-off manner repeatedly). Open the FlyskyAssistant on the computer to update the firmware.

Failsafe

The failsafe function is used to output the channel value according to the out-of-control protection value set by the user after the receiver loses its signal and is out of control to protect the model and personnel.

It can also be set failsafe for each channel respectively. This receiver supports two failsafe modes: [ON]and [OFF] [OFF] It is no output for the interface of PWM.
[ON] Outputs the failsafe values set for each channel.

Servo Frequency

The receiver supports to set the servo frequency via the transmitter. There are three types: Analog servo, Digital servo or Custom. You can select or set the correct output frequency value according to the servo used. By default, the system adopts the Analog servo. The Custom frequency adjustment range is 50-400Hz. Please refer to the manual of the transmitter for detailed.

Compatibility

The receiver is compatible with the transmitters with ANT protocol, such as FS-G7P or FS-G4P.

****Attentions:

Make sure the product is installed and calibrated correctly, failure to do so may result in serious injury.
Make sure the receiver’s battery is disconnected before turning off the transmitter, failure to do so can result out of control. Unreasonable setting of the Failsafe may cause accidents.
Make sure the receiver is mounted away from motors, electronic speed controllers or any device that emits excessive electrical noise.
Keep the receiver’s antenna at least 1cm away from conductive materials such as carbon or metal.
Do not power on the receiver during the setup process to prevent loss of control.

Certifications

FCC Compliance Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Warning: changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

EU DoC Declaration

Hereby, [Flysky Technology co., ltd] declares that the Radio Equipment [FS- R4M] is in compliance with RED 2014/53/EU.
The full text of the EU DoC is available at the following internet address: www.flysky-cn.com.

RF Exposure Compliance

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

Environmentally friendly disposal

Old electrical appliances must not be disposed of together with the residual waste, but have to be disposed of separately. The disposal at the communal collecting point via private persons is for free. The owner of old appliances is responsible to bring the appliances to these collecting points or to similar collection points. With this little personal effort, you contribute to recycle valuable raw materials and the treatment of toxic substances.

FCC ID: 2A2UNR4M00

Manufacturer：FLYSKY Technology Co., Ltd
Address: 16F, Huafeng Building, 6006 Shennan Road, Futian District, Shenzhen

Figures and illustrations in this manual are provided for reference only and may differ from actual product appearance. Product design and specifications may be changed without notice.