1. Brief Introduction
1). This 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.
2). 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.
2. Summarize
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 system
5). Dimension:40*29mm(smaller than 0ne-third of credit card)
6). Operating temperature: -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). 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/AES
10). 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.
3. Other Parameters
1). Status indicator Status indicator
2). Environmental standard Operating temperature:-20-70 Centigrade
3). Operating humidity:10%-90%RH(noncondensing)
4). Storage temperature:-40-80 Centigrade
5). Storage humidity:5%-90%RH(noncondensing)
6). Additional properties Frequency bandwidth optional:20MHz,40MHz,Automatic
4. Mechanical Dimensions
HLK-RM04 Mechanical Dimensions(mm) is shown in the following picture:
5. Features:Full function of wireless router:
1). Support 5 types of work mode: AP, Client, Repeater, Bridge, Router
2). AP mode- Default work mode. In this mode, the device works as a wireless access point, support for plug-and-play, and no configuration needed.
3). Router mode-In this mode, the device is equivalent to a wireless router, wired interfaces can be used as WAN, wireless used as LAN. Multiple wireless clients can share a broadband line to search the Internet.
4). Repeater mode -Use the radio relay function of the device, achieve the radio signal repeat and amplified, and form a new radio coverage area, ultimately attain the purpose of extending the coverage of the wireless network.
5). Bridge mode-With the Bridging function of equipment, firstly, the module RM04 establish a wireless connection with the front-end wireless network itself ,then sending the wireless signal, at the same time, form a new wireless coverage, signal weak and signal blind spot can be solved effectively.
5). Client mode -The AP to work in this mode for the main AP is a wireless client, the equivalent of a wireless network card.
6. Pins Interface
The Pin of this product as shown above is defined as follows:
No. Function Direction Explanation
1 VDD5V A 5 Power input
2 GND GND Power ground
3 GND G Serial sending
4 3.3V I 3.3V power output
5 LINK1 I/O Net gape 1 LED indicte
6 USB_P USB signal
7 USB_M USB signal
8 I2S_SD I2C DATA/GPIO
9 I2S_CLK I2C CLK/GPIO
10 GIOP0 I/O Universal GPIO
11 TXOP1 I/O Net gape 1 TX-P
12 TXON1 I/O Net gape 1 TX-N
13 RXIP2 I/O Net gape 2 RX-P
14 RXIN2 I/O Net gape 2 RX-N
15 RXIN1 I/O Net gape 1 RX-P
16 RXIP1 I/O Net gape 1 RX-P
17 TXON2 I/O Net gape 2 TX-N
18 TXOP2 I/O Net gape 2 TX-P
19 RTS_N I All function serial RTS
20 UART_RX I Simple serial RX
21 UART_TX O Simple serial TX
22 RXD I All function serial RX
23 LINK2 I/O Net gape 2 LED I/O indicte
24 CTS_N O All function serial CTS
25 RIN I GPIO
26 TXD O All function serial TX
27 1.8V Power Out Net gape 1.8V output
28 VDD5V Power In 5V input
