HLK-RM04 Serial To WIfi \/ Ethernet Module<br>Introduction:<br>HLK-RM04 is a new low-cost embedded UART-ETH-WIFI module (serial port - Ethernet - Wireless network) developed by Shenzhen Hi-Link ElectronicTechnology co.， LtdThis product is an embedded module based on the universal serial interface network standard， built-in TCP \/ IP protocol stack， enabling the user serial port， Ethernet， wireless network (wifi) interface between the conversions.Through the HLK-RM04 module， the traditional serial devices do not need to change any configuration; data can be transmitted through the Internet network. Provide a quick solution for the users serial devices to transfer data via Ethernet<br>Description:<br>1.Serial to WIFI，serial to Ethernet， Ethernet to WIFI， multi functional module，serial sever module，make your serial device easier to access to the network，full transparent two-way data transmission， ensure maximum limit usability and compatibility.2. Module is integrated 10\/100M adaptive Ethernet interface， serial communication baud rate up to 230.4Kbps.3. With the world's top network chip suppliers Ralink program ，raw materials are used the TDK \/ \/ Murata big manufacturers to lay a stable and reliable basis.4. Reliable system core， applies for safety and long-running system5.Dimension:40*29mm(smaller than 0ne-third of credit card)6. Operating temperature: -25~75 C.   caizhixing electronic co.，ltd7. Built-in 360M MIPS CPU， 16M RAM and 4M FLASH and wireless baseband and RF front-end， and a variety of peripheral bus.8.Have CE and FCC certification，support IEEE 802.11 b\/g\/n，support transparent transmission mode.9. Support the vast majority of WIFI encryption methods and algorithms， WEP\/WAP-PSK\/WAP2-PSK\/WAPI，encipher type: WEP64\/WEP128\/TKIP\/AES10. Provide AT + instruction set configuration， providing friendly Web configuration page， configured through the Web.11. Support built-in onboard antenna and external antenna.12.Support wireless AP mode and Station mode， the real hardware AP，support all the WIFI connection of iphone and android system and so on ，support AP and station online at the same time.13. Optional TCP Server\/TCP Client\/UDP work mode， support lots of Network protocol: TCP\/UDP\/ARP\/ICMP\/HTTP\/DNS\/DHCP.14. Support DHCP to automatically obtain IP， support the device to assign IP when the module works in AP mode.15.Serial rate is adjustable， the maximum one is up to 230400.16. Strong technical support， provide customized needs.<br>Parameter:<br>Status indicator Status indicator    caizhixing electronic co.，ltdEnvironmental standard Operating temperature:-20-70 CentigradeOperating humidity:10%-90%RH(noncondensing)Storage temperature:-40-80 CentigradeStorage humidity:5%-90%RH(noncondensing)Additional properties Frequency bandwidth optional:20MHz，40MHz，Automatic<br>Features:<br>Support 5 types of work mode: AP， Client， Repeater， Bridge， RouterAP mode- Default work mode. In this mode， the device works as a wireless access point， support