RS232 RS485 USB Wireless Transceiver 433M 868M Transmitter Receiver Module
Description:

Working voltage: 4.8V-9V(2A Power Supply is Recommended);
Interface : RS485/RS232/USB
Frequency: 433MHz/868MHz
Transmit power: -40~+20dBm;
Receiver sensitivity: -114dBm;
Operating temperature: -25℃~+75℃;
Transparent transmission mode baud rate :1200 2400,4800,9600(Default),19200,38400,57600,115200;
Open ground Transmission distance : 500M
Size(without antenna): 80x50x31mm
Weight(without antenna):50g
 

For more information, please contact me

Recommend to buy more than 2pcs!!!

The three products of RS485/RS232/USB only have different interfaces and the same functions. Can communicate with each other, mixed use:
RS485<->RS485, RS232<->RS232,USB<->USB,
USB<->RS485, USB<->RS232, RS485<->RS232

How to use (>=2pcs):

1 2PCS,Module 1 and Module 2 send data to each other.

2 3PCS,Module 1 sends data, module 2 acts as a repeater (multiple repeaters can be used), and module 3 receives data; delay sending and receiving distance.

3 >=3PCS,One as master device, the other as will be as slave device.
the way they work as well as wired RS485 bus. Master device transmit data, Slave devices all receive data.Any slave device transmit data, master device and the other slave devices can receive .When ever only allowed one device (master or slave) to transmit data.





 
 
 
 
Application

PTZ Camera
Modbus modbus temperature sensor
LED Controller
RS485/RS232 Relay
Remote control, remote measurement system;
Wireless meter ;
Smart Home,Home Automation ,Wiser Home;
Access control ;
Identification system ;
Data collection;
IT household appliance ;
Intelligence household appliance;
Baby monitoring system;
Thermometer
 
List of AT commands:
This is a brief description of AT commands, please refer to the ''RT4AE01 AT Command Detailed Description'' manual for detailed descriptions

Factory serial port parameters: 9600 8 N 1

Send ''AT+ENABLE=1'' within three minutes after power on to enter the AT command configuration mode
Configuration completed: send ''AT+ENABLE=0'' to exit the AT command configuration mode

1 ID
Query : AT+ID?
Set : AT+ID=xxx (000-254)

2 Software version information
Query : AT+INF?

3 working channels
Query : AT+FREQ?
Set : AT+FREQ=xxx(000-254)
The frequency of data transmission is 430MHz+xxx*0.1MHz (xxx is the selected working channel)

4 baud rate
Query : AT+BAUD?
Setting : AT+BAUD=x(0-7)
0:1200 1:2400 2:4800 3:9600 (default) 4:19200 5:38400 6:57600 7:115200

5 parity bits
Query : AT+PARITY?
Setting : AT+PARITY=x(0-2)
0: No parity 1: Even parity 2: Odd parity

6 Transmit power
Query: AT+POWER?
Setting: AT+POWER=x(0-9)
0:-40dBm 1:-16dBm 2:-10dBm 3:-5dBm 4:0dBm 5:+5dBm 6:+10dBm 7:+15dBm 8:+18dBm 9:+20dBm

7 Factory reset
Set: AT+RESET

8 Reboot:
Settings: AT+REPOWER

 

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Am 16.05.2023 hat der Verkäufer die folgenden Angaben hinzugefügt:

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