Table of contents
show
Reyax RYLR998 Antenna Transceiver Module User Guide
How to Use the RYLR896 Module
- Connect via UART interface (3.3V logic level).
- Open a serial terminal
- Power the module using regulated 3.3V.
- Start sending AT commands to configure ADDRESS, NETWORKID, BAND, and PARAMETER.
- Test transmission using AT+SEND command.
- Monitor responses and debug communication.
- Deploy in real-time environment ensuring antenna and power stability.
THE SEQUENCE OF USING AT COMMAND
- Use “AT+ADDRESS” to set ADDRESS. The ADDRESS is regard as the identification of transmitter or specified receiver.
- Use “AT+NETWORKID” to set the ID of Lora network. This is a Group function. Only by setting the same NETWORKID can the modules communicate with each other.
- Use” AT+BAND” to set the center frequency of wireless band. The transmitter and the receiver are required to use the same frequency to communicate with each other.
- Use” AT+PARAMETER” to set the RF wireless parameters. The transmitter and the receiver are required to set the same parameters to communicate with each other. The parameters of which as follows:
- The larger the SF is, the better the sensitivity is.
- The smaller the bandwidth is, the better the sensitivity.
AT Command Set
- It is required to key in “enter” or “\r\n” in the end of all AT Commands.
- Add“ ? ”in the end of the commands to ask the current setting value.
Software RESET
| Syntax | Response |
| AT+RESET | +RESET +READY |
AT+MODE Set the wireless work mode.
| Syntax | Response |
| +OK |
AT+IPR Set the UART baud rate.
| Syntax | Response |
| AT+IPR=<rate> | +IPR=<rate> |
| <rate> is the UART baud rate： | |
| 300 | |
| 1200 | |
| 4800 | |
| 9600 | |
| 19200 | |
| 28800 | |
| 38400 | |
| 57600 | |
| 115200(default) | |
| Example: Set the baud rate as 9600, | |
| *The settings will be memorized in Flash. | |
| AT+IPR=9600 | |
| AT+IPR? | +IPR=9600 |
AT+PARAMETER Set the RF parameters.
| Syntax | Response |
| +OK |
| AT+PARAMETER? | +PARAMETER=7,9,4,12 |
AT+BAND Set RF Frequency.
| Syntax | Response |
| +OK |
| AT+BAND? | +BAND=868500000 |
AT+ADDRESS Set the ADDRESS ID of module Lora.
| Syntax | Response |
| +OK |
| AT+ADDRESS? | +ADDRESS=120 |
AT+NETWORKID Set the network ID.
| Syntax | Response |
| +OK |
| AT+NETWORKID? | +NETWORK=6 |
AT+CPIN Set the domain password
| Syntax | Response |
| +OK |
|
|
AT+CRFOP Set the RF output power.
| Syntax | Response |
| +OK |
| AT+CRFOP? | +CRFOP=10 |
AT+UID? To inquire module ID. 12BYTES
| Syntax | Response |
| AT+UID? | +UID=104737333437353600170029 |
AT+VER? To inquire the firmware version.
| Syntax | Response |
| AT+VER? | +VER=RYLRxx8_Vx.x.x |
AT+FACTORY Set all current parameters to manufacturer defaults.
| Syntax | Response |
AT+FACTORY Manufacturer defaults:
| +FACTORY |
Key Features
- Long-range wireless transmission
- Low power consumption
- Operates in various frequency bands
- Supports standard UART interface
- Simple AT commands for configuration
- Built-in Lora WAN protocol stack
- Compact and lightweight
- High sensitivity and interference immunity
- Supports point-to-point and star network topologies
- AES128 data encryption support
Technical Specifications
- Model: REYAX RYLR896
- Frequency Range: 868 MHz / 915 MHz
- Communication Interface: UART (3.3V level)
- Modulation: Lora Modulation
- Sensitivity: Up to -139 dBm
- Data Rate: 0.3 kbps to 37.5 kbps
- Output Power: Up to +20 dBm
- Supply Voltage: 1.8V to 3.6V
- Operating Temperature: -40°C to +85°C
- Dimensions: 16mm x 16mm x 2mm
Troubleshooting Common Issues
- No Communication Between Modules: Ensure same NETWORKID, BAND, and PARAMETER settings.
- Data Loss: Increase preamble length.
- Incorrect Baud Rate: Confirm UART baud rate matches on MCU and module.
- Weak Signal Strength: Check antenna connection and placement.
- Power Supply Instability: Ensure stable voltage between 1.8V – 3.6V.
- Module Not Responding: Perform a reset using AT+RESET.
- Firmware Compatibility: Check the latest firmware from the Reyax site.
- Data Corruption: Enable AES encryption for secure data transmission.
- Frequency Mismatch: Make sure frequency bands comply with your region’s regulations.
FAQS
What is the range of the Lora transceiver module?
The module boasts a range of up to 16 km, an integrated Lora modem.
What is the use of transceiver module?
These devices are employed in communication systems to transmit and receive electrical or optical signals
What is the useful life of a transceiver?
PIEPS recommends sending in its devices for a service at 3 years and 5 years
How do transceivers work?
Transceivers are wavelength-specific lasers that convert electrical data signals from data switches into optical signals.
What is the Reyax RYLR896 Lora module?
Feature the Lora long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.
What is the maximum distance for a transceiver?
ER4 : these transceiver modules transmit to distances of up to 40 km via single mode fiber using DWDM on 4 channels.
How can I reset the module?
Use the command AT+RESET
Which antennas are compatible with RYLR896?
Standard 868 MHz or 915 MHz antennas, depending on your band.
What is the difference between antenna and transceiver?
In radio communication, a transceiver is an electronic device which is a combination of a radio transmitter and a receiver.