User's Manual

1
1. Product profile
1.1 Overview
HLK-RM58S is a new low-cost embedded UART-WIFI module (serial-Wireless network)
developed by Shenzhen Hi-Link co., Ltd.
This product is an embedded module based on the serial interface in line with the network
standard , built-in TCP/IP protocol stack, can realize the user serial port-wireless network (WIFI)
conversion.
Through the HLK-RM58S module, the traditional serial device can transmit its own data through
the Internet network without changing any configuration, which provides a complete and fast
solution for the user's serial port device to transmit the data through the network.
1.2 Product Characteristics
 Compatible IEEE 802.11 a/n
 Dedicated high-performance 32-bit RISC CPU
 Support for 5 GHz band
 Support two working modes of STA/AP
 Built-in TCP/IP protocol stack
 Support various AT instructions
 Support one-click configuration of intelligent networking features
 Support wireless upgrade (OTA)
 5V single power supply, low power consumption
 Fast transmission speed of serial port
1.3 Product Packaging
Figure 1 HLK-RM58S encapsulation size