We have been deeply involved in the industry for more than ten years, and have served more than 10W+ customers. WiFi modules, Bluetooth modules, power modules and other products are in more than 80 countries and regions, providing customers with professional and reliable IoT module products.
Model: HLK - WR02
Hlk-wr02 is an industrial-grade serial port wireless router that enables fast serial access to the network for user devices。
Standard RS232 interface (DB9 pins)
PIN | unction | irection | xplain |
1 | N/C | N/C | The stitch is undefined |
2 | RXD | Input | Data receiving input |
3 | TXD | Output | Data transmission output |
4 | N/C | N/C | The stitch is undefined |
5 | GND | Input | signal ground |
6 | N/C | N/C | The stitch is undefined |
7 | N/C | N/C | The stitch is undefined |
8 | N/C | N/C | The stitch is undefined |
9 | N/C | N/C | The stitch is undefined |
LAN part/WAN part(Standard RJ - 45)
PIN | Function | Direction | Explain |
1 | TX+ | Output | Tranceive Data+ |
2 | TX- | Output | Tranceive Data- |
3 | RX+ | Iutput | Receive Data+ |
4 | N/C | N/C | Undefined |
5 | N/C | N/C | Undefined |
6 | RX- | Input | Receive Data- |
7 | N/C | N/C | Undefined |
8 | N/C | N/C | Tranceive Data+ |
Other interface description
RST key
Functions: The RSI button is used to reset the HLK-WR02 serial port router to factory Settings。
Note: After the product is fully started, press the button in the RST hole with the tool for more than 10 seconds, and all the parameters of the product can be restored to the default setting of the factory。
5V power interface
Functions: Power input port, input voltage range 4.5V~5.5V。
Note: The default power adapter is 5V/1A DC power. The power interface core is positive。
antenna terminal
Specification: The standard SMA interface of the external screw and the internal screw can be matched with the 2.4g SMA interface antenna of the internal screw。
LED indicating lamp
LED flashing: Serial port wireless router WiFi works normally. 4.5 V to 5.5 V。
LED lights off or always on: WiFi of serial port wireless router is not working/not working normally。
Product functions can be divided into: default mode, serial port to Ethernet, serial port to WiFi CLIENT and serial port to WiFi AP。
·In this mode, WiFi and LAN functions are turned off, and COM1 data and WAN network data are converted to each other through setting。
·Ethernet can be configured as dynamic IP address (DHCP) or STATIC IP address (STATIC)。
·In this mode, WAN and LAN functions are turned off, and COM1 data and WiFi data are converted to each other through setting。
·WiFi CLIENT can be configured as dynamic IP address (DHCP) or STATIC IP address (STATIC)。
·WiFi security supports all current encryption methods。
·In this mode (AP mode), WAN and LAN functions are turned off, and COM1 data and WiFi data are converted to each other through setting。
·WiFi devices can connect to the product and become devices under WiFi LOCAL area network。
·WiFi security supports all current encryption methods。
·In this mode (AP mode), WAN and LAN functions are available. COM1 data and WiFi data can be converted to each other through setting。
·WiFi devices can connect to the product and become devices under WiFi LOCAL area network. WAN - end default dynamic IP address mode. LAN and WiFi are the same LAN, and DHCP server is on by default
·WiFi security supports all current encryption methods。
The serial port/network data transformation of the product can be divided into four modes: TCP Server, TCP Clinet, UDP Server and UDP Client。
TCP Server
·In this mode, the module listens to the specified port and waits for TCP Client to connect. After connecting, all TCP data is directly sent to the serial port, and the serial port data is sent to all TCP Client terminals
TCP Client
·In this mode, the module connects to the specified domain name /IP and port. All data sent from the TCP Server side is directly sent to the serial port side, and the serial port side is sent to the TCP Server side
·A network exception can cause active reconnection of the product. When TCP active reconnect is available, TCP Server will disconnect and the product will reconnect immediately; otherwise, the module will not reconnect
UDP Server
·In this mode, the module opens the local designated port. Once the data sent to this port is received, the module will send the data to the serial port and record the IP and port of the remote terminal. The module records only the remote information on the last connection. The data received by the serial port will be sent directly to the recorded remote IP and port。
UDP Client
·In this mode, the module directly sends serial port data to the specified IP and port. The data returned from the server will be sent to the serial port。
Network Standard | WLAN STANDARD:IEEE 802.11n/g/b |
Cable standard:IEEE 802.3、IEEE 802.3u | |
Wireless communication Speed | 11n:up to150Mbps |
channel number | 14 |
频率范围 | 2.4-2.4835G |
发射功率 | 12-15DBM |
接口 | WAN/LAN/ serial /5V power input interface |
antenna | |
Type of antenna | Externally attached 6DB rod antenna |
functional parameter | |
WIFIwork pattern | Wireless network card/wireless access point/wireless router |
WDSfunction | supportWDSWireless Bridge |
Wireless security | wirelessMACaddress filtering |
Wireless safety function switch | |
64/128/152位WEPEncryption | |
WPA-PSK/WPA2-PSK、WPA/WPA2security mechanism | |
network management | RemoteWebManagement |
Profile imports and exports | |
WEBSoftware Upgrading | |
Serial port to network | |
Maximum Transfer Rate | 500000bps |
TCPConnect | Max Connections >20 |
UDPconnect | Max Connections >20 |
Series rate | 1200~2500000bps (Support for non-standard baud rates) |
The Other Parameter | |
status indicator lamp | Normal -LED light flicker abnormal -LED light normally on/off |
environmental standards | Working Temperature:-20-70℃ |
operating humidity:10%-90%RH(noncondensing) | |
storage temperature:-40-80℃ | |
Storage Humidity:5%-90%RH(noncondensing) | |
Access Connections | Band bandwidth is optional:20MHz、40MHz,Automatic |