Serial RS232 to WIFI Converter | WIFI to RS232 Server

800x800 602
USR-WIFI232-602 V2/$41.80 In stock


Power: DC 4.75 ~ 7V, 170 ~ 350mA @ 5V
Interface: 1*RS232: TX/RX/RTS/CTS

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USR-WIFI232-602 V2 Serial RS232 to WiFi Converter Adapter is used for data transparent transmission. Under open horizon and no obstacle situation,The Max transmission distance is 280m with 3dbi external antenna. In AP mode,The max Station connection is 32.

Built in Web Server/Webpage for configuration.
Webpage socket to Serial.
HTTP Client: send data as HTTP format automatically. Serial data submitted to server by HTTP (GET/POST).
DHCP: automatically obtain an IP address and query IP address.
DNS address and MAC address can be modified.
Synchronous and adaptive serial port baud rate.
Support router/bridge mode networking.
Registration packet: identified header can be added to packets to check
connection status.
Heartbeat packet: can be sent to serial or network periodic. To ensure connection is reliable, put an end to dead link.
Support UDP, TCP, HTTP protocol and Transparent transmission, AT Command Mode, HTTP Client Mode.

Parameter Configuration:
1)Web Server configuration. (Manual P24)

2)Serial and Network AT Command.
Factory Setting:
1) Hardware reset: Press Reload button for 3S, then release it.
2) Software reset: Enter AT command mode, use AT command AT+RELD.
3) Webpage setting: “Device management page”
Firmware upgrade by webpage. ( Manual P25 )

WIFI Networking Mode
1)AP: the wireless access point and the founder of wireless network. all devices can connect AP. E.g.: A router also work as AP.
In AP Mode, the Max STA connection is 32.
2)STA: terminal of the wireless network. All communication between STAs is
through AP. e.g.: PC can work as STA.
3)AP+STA: supports one device as AT and one device as STA.

TCP/UDP Transparent Transmission Mode
Serial RS232 WIFI Converter WIFI232-602 work as TCP Client, TCP Server, UDP Client,
UDP Server Mode.
1) In TCP Client Mode: Client connects Server automatically. User should configure the TCP Server’s IP address and Port.
2) In TCP Server Mode: The Max Client number is 32.
3) In UDP Client Mode: serial data will be sent to a fix IP address/port which you appointed.
4) In UDP Server Mode: serial data will be sent to last source IP/Port.
Industrial automation system.
Energy consumption monitoring: intelligent ammeter and intelligent water meter.
Smart parking system and Intelligent traffic system.
Cold storage logistic system.
Environmental monitoring and humiture data acquisition.

Basic Information
Size84 x 84 x 25 mm
Working VoltageDC 4.75 ~ 7V
Working Current170 ~ 350 mA @ 5V
Working Temp-40 ~ 85°C
Storage Temp-40 ~ 125°C
Storage Humidity5 ~ 95% RH (non-condesation)
Serial Port
Interface PinTX/RX/RTS/CTS
Baud Rate300 bps ~ 460.8K bps
BufferTX: 4K bytes, RX: 4K bytes
Data Bit5, 6, 7, 8
Stop Bit1, 2
Wireless Parameter
Wireless Standard802.11 b/g/n
Frequency Range2.412GHz ~ 2.484GHz
Transmit Power802.11b: +20 dBm (Max)
802.11g: +18 dBm (Max)
802.11n: +15 dBm (Max)
Receive Sensitivity802.11b: -89 dBm
802.11g: -81dBm
802.11n: -71dBm
Transmission DistanceMax 280m with 3dbi external antenna
( open horizonm and no obstacle situation)
Data SecuritySecurity: WEP/WPA-PSK/WPA2-PSK
Encryption: WEP64/WEP128/TKIP/AES
Wireless Network TypeAP, Station, AP+STA Mode
Max STA Number in AP Mode32
Parameter ConfigurationWeb Server, Network AT Command, Serial AT Command
Warranty2 years
SoftwareVirtual Serial / VCOM software
Accessory5V1A power supply, COM cable, 3dbi antenna

User Manual

[User Manual] W600/602 V2/604 V2 Comparison | download
[User Manual] USR-WIFI232-602/610/604/2 User Manual | download

Development File

[Development Doc] Usrlink Fast Networking Protocol Instruction and Demo | download
[Demo Code] TCPIP Demo Code | download

Application Software

[USR-VCOM] Virtual Serial Software V3.7.1.520 | download
[USR-TCP-Test] Testing Software | download
[USR-TCP-Test_android] Testing Software | download
[USR-WIFI232-Setup] Setup Software | download
[Settings Utility] USR-WIFI232-W6xx Settings Utility | download

Product Certificates

[Certificate] WIFI High Performance CE FCC ROHS WEEE Certificate | download

Company File

[Product Catalog] USR Product Catalog | download


All USR products will be tested by R&D first, then production test again.(ESD Test,Surge/EFT Test, High/Low Temperature Test, EMC and LVD environment reliability test, etc.) Click here to watch test videos.
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