1. Dual serial port + dual network port + WIFI powerful network is simple

2. Support mobile phone + web + serial software + AT command + WPS configuration encryption

3. Support AP / STA mode

RM04 module is the latest version with a shield (the default is the external antenna version of the module, without the antenna)

This product is based on the universal serial interface conforms to the network standard embedded module, built-in TCP / IP protocol stack, can realize the user serial port, Ethernet, wireless network (WIFI) 3 interface between any transparent conversion.
With the HLK-RM04 module, traditional serial devices can transmit their own data over the Internet without changing any configuration. For the user's serial device through the Ethernet to provide a fast data transmission

2 Product Overview

1, serial to WIFI module, serial to Ethernet module, Ethernet to WIFI multi-function WIFI module, serial server module, so that your serial device easy networking, transparent two-way data transmission, to ensure maximum ease of use and compatibility
2. Module integrated 10 / 100M adaptive Ethernet interface, serial communication maximum baud rate up to 230.4Kbps
3.3. Using the world's top network chip supplier Lei Ling ralink program, raw materials are used TDK / / Murata and other big manufacturers, to lay a stable and reliable basis
4. Reliable system core for security and long-running system applications
5. Small size: 40 * 29 (one-third smaller than the credit card)
6. Operating temperature: Industrial grade: -25 ~ 75 ° C.
7. Built-in 360M MIPS CPU, 16M RAM and 4M FLASH and wireless baseband and RF front end and a variety of peripheral bus
8. Supports IEEE 802.11 b / g / n via CE and FCC, supports transparent protocol data transfer mode
9. support the vast majority of WIFI encryption and algorithms, WEP / WAP-PSK / WAP2-PSK / WAPI, encryption type WEP64 / WEP128 / TKIP / AES
10. Provide AT + instruction set configuration, provide a friendly Web configuration page, through the web configuration
11. Optional built-in onboard or external antenna
12. Support wireless work in AP mode and node (station) mode, the real hardware AP, support iphone mobile phone android system and all other WIFI connection, support AP and station at the same time online function
13. Optional TCP Server / TCP Client / UDP working mode, support network protocol: TCP / UDP / ARP / ICMP / HTTP / DNS / DHCP
14. Support DHCP automatically obtain IP, support the work in the AP mode for the allocation of IP from the device
15, the serial port is adjustable, the maximum support 230400