2. Hardware description
2.1 network characteristic
The relay controller is based on HLK-M50 module. HLK-M50 is a cost-effective embedded
serial port-WiFi transmission module developed by HI-LINK Electronics. The module has
built-in TCP/IP protocol stack, which can realize the conversion between user serial port and
wireless network (WIFI) interface, and can transmit data between serial port and network
TCP/UDP connection.
The following table is the parameter specification table for the WiFi module
:
Network Parameter
Network standard
Wireless standard:
IEEE 802.11n
、
IEEE 802.11g
、
IEEE 802.11b
Wireless transmission
rate
11n:
Up to
150Mbps
11g:
Up to
54Mbps
11b:
Up to
11Mbps
Channel Number
1
~
11
Frequency range
2.4
~
2.4835G
Transmitting power
15
~
20 dBm
Connect Port
1 USB、
1 usb port
(
host
)、
GPIO
Antenna
Antenna type
Plate-borne antenna/External antenna
Functional parameter
WIFI
work pattern
STA/AP
Wireless security
64/128/152
位
WEP
encryption
WEP
、
WPA
、
WPA2
(
CCMP
、
TKIP
)security mechanism
(Only support
WPA2-CCMP in AP
mode)
Configuration mode
Serial AT command
Serial Port to Network
Network Connection
Type
TCP Server/TCP Client/ UDP Server/ UDP Client
Maximum number of
connections under the
TCP Server
5
Serial port baud rate
1200~3000000bps
Other parameters
Status indicator
A state indicates the output.
Working temp:
-20
~
70
℃
Working humidity:
10%
~
90%RH
(non condensing )
Summary of Contents for HLK-SW04
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