Hlk-Rm04 Serial Port Ethernet Serial Wifi Module Wireless Router Car Tank Robot Chassis Raspberry Pi Rpi Pcduino Robot Remote

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Introduction

  • HLK-RM04 is a new low-cost embedded UART-ETH-WIFI module (serialport - Ethernet - Wireless network) developed by Shenzhen Hi-Link Electronic co., Ltd

  • 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.

  • 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 aquick solution for the user’s serial devices to transfer data via Ethernet.

  • FCCID: ZXVHLK-RM04   FCC Certificate    CE certificate check

Features

  • Stable, reliable, high quality,convenience

  • the Arduino serial data communication of data and Phone/other WiFi devices

  • the PC serial port (RS232 equipment) data

  • data communication Phone/otherWiFi device

Specifications

  • Name: HLK-RM04

Shipping List

  • HLK-RM04 WIFI module: 1pcs

pictures

FCC ID:ZXVHLK-RM04   FCC Certificate    CE certificate check

1          Summarize

1.1        Technical Specifications

Table2-1Technical Specifications  

Network standard

wireless: IEEE 802.11n, IEEE 802.11g, IEEE 802.11b

wired: IEEE 802.3, IEEE 802.3u

Wireless transmission rate

11n: maximum up to 150Mbps
11g: maximum up to 54Mbps
11b: maximum up to 11Mbps

Tracks number

1-14

Frequency range

2.4-2.4835G

Emission power

12-15DBM

Interface

1 pcs 10/100Mbps LAN/WAN multiplex interface, interface

Antenna

Antenna type

Onboard antenna / External Antenna


Functional Parameters

WIFI work mode

Client/AP/Router

WDS Function

Support WDS wireless bridge connection

Wireless security

Wireless MAC address filtering

Wireless security function switch

64/128/152 bit WEP encryption

WPA-PSK/WPA2-PSK, WPA/WPA2 security mechanism

Network management

Remote Web management

Configuration file import and export

WEB software upgrade

Serial to network

Maximum transmission rate

230400bps

TCP connection

Max connection number>20

UDP connection

Max connection number>20

Serial baud rate

50~230400bps

Other parameters

Status indicator

Status indicator

Environmental standard

Operating temperature: -20-70 degree

Operating humidity: 10%-90%RH

Storage temperature: -40-80 degree

Storage humidity: 5%-90%RH

Additional properties

Frequency bandwidth optional: 20MHz, 40MHz


1.2        Hardware Explanation

1.2.1        Mechanical Dimensions


HLK-RM04 Mechanical Dimensions is shown in the following picture:



1.2.1.1       Contact Pin Interface

The Pin of this product as shown above is defined as follows:

Table2-2 module pin interface

No.

Function

Direction

Explanation

1VDD5V

A

5 Power input
2GND

GND

Power ground
3WLAN_LED

O

WIFI LED
43.3V

I

3.3V power output
5LINK1

I/O

Net gape 1 LED indicte
6USB_P
USB signal D-
7USB_M
USB signal D+
8I2S_SD
I2C DATA/GPIO
9I2S_CLK
I2C CLK/GPIO
10GIOP0

I/O

Universal GPIO
11TXOP1

I/O

Net gape 1 TX-P
12TXON1

I/O

Net gape 1 TX-N
13RXIP2

I/O

Net gape 2 RX-P
14RXIN2

I/O

Net gape 2 RX-N
15RXIN1

I/O

Net gape 1 RX-P
16RXIP1

I/O

Net gape 1 RX-P
17TXON2

I/O

Net gape 2 TX-N
18TXOP2

I/O

Net gape 2 TX-P
19RTS_N

I

All function serial RTS
20UART_RX

I

Simple serial RX
21UART_TX

O

Simple serial TX
22RXD

I

All function serial RX
23LINK2

I/O

Net gape 2 LED I/O indicte
24CTS_N

O

All function serial CTS
25RIN

I

GPIO
26TXD

O

All function serial TX
271.8V

Power Out

Net gape 1.8V output
28VDD5V

Power In

5V input

 



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