Product Name: VHF/UHF Radio Modem RS485 RS232 USB Wireless Transceiver 20DBM 433M 868M Transmitter and Receiver
Package inlcuded:
1 PCS 433M/868M RS485 /RS232/USB Wireless RS485 transceiver
Description:Working voltage: 4.8V-9V(2A Power Supply is Recommended);Interface : RS485/RS232/USBFrequency: 433MHz/868MHzTransmit 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): 80x50x31mmWeight(without antenna):50g
For more information, please contact meRecommend 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<->RS232How 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.
ApplicationPTZ CameraModbus modbus temperature sensorLED 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 descriptionsFactory serial port parameters: 9600 8 N 1Send ''AT+ENABLE=1'' within three minutes after power on to enter the AT command configuration modeConfiguration completed: send ''AT+ENABLE=0'' to exit the AT command configuration mode1 IDQuery : AT+ID?Set : AT+ID=xxx (000-254)2 Software version informationQuery : AT+INF?3 working channelsQuery : 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 rateQuery : AT+BAUD?Setting : AT+BAUD=x(0-7)0:1200 1:2400 2:4800 3:9600 (default) 4:19200 5:38400 6:57600 7:1152005 parity bitsQuery : AT+PARITY?Setting : AT+PARITY=x(0-2)0: No parity 1: Even parity 2: Odd parity6 Transmit powerQuery: 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:+20dBm7 Factory resetSet: AT+RESET8 Reboot:Settings: AT+REPOWER
