RAK 425 Series Manual de usuario

RAK425 User Guide

RAK425 Serial WIFI Module

User Guide V1.4

Shenzhen Rakwireless Technology Co.,Ltd www.rakwireless.com

Mail：[email protected]

RAK425 User Guide

Content

RAK425 Serial WIFI Module..............................................................................1

1 Quick Start.............................................................................................................. - 1 -

STEP1: Check before Power Up.....................................................................- 2 -

STEP2: State after Power Up..........................................................................- 2 -

STEP3: Pass-through Data Test......................................................................- 5 -

2 Functional Description........................................................................................... - 8 -

2.1 Overview..................................................................................................... - 8 -

2.2 Key Applications.........................................................................................- 8 -

2.3 Device Features...........................................................................................- 8 -

2.4 Feature Description....................................................................................- 9 -

2.4.1 Hardware Interface...........................................................................- 9 -

2.4.2 Wireless Drivers................................................................................- 9 -

2.4.3 TCP/IP..............................................................................................- 10 -

2.4.4 Power Consumption.......................................................................- 10 -

3 Hardware Introduction.........................................................................................- 11 -

3.1 Module type.............................................................................................. - 11 -

3.2 Pin Definition............................................................................................- 12 -

4 Use Encyclopedia.................................................................................................. - 14 -

4.1 Basic Flow Chart...................................................................................... - 14 -

4.2 Variety of Configurations........................................................................ - 15 -

4.3 WEB Configuration................................................................................. - 16 -

Mode Selection Page............................................................................... - 17 -

AP Settings............................................................................................... - 18 -

RAK425 User Guide

STA Node Parameter Settings..................................................................- 19 -

IO Communication Parameter Settings.................................................. - 20 -

Network Parameter Settings...................................................................- 21 -

Advanced Management.......................................................................... - 21 -

Firmware Upgrade...................................................................................- 23 -

4.4 Wireless Configuration Tool....................................................................- 24 -

4.5 Serial Interface Configuration Tool........................................................- 25 -

4.6 Dual Socket Applications.........................................................................- 26 -

4.7 EasyConfig Functional Demonstration.................................................. - 30 -

5 Assistant AT Command.........................................................................................- 32 -

5.1 Syntax........................................................................................................- 33 -

5.2 Open AssistantCommand........................................................................ - 34 -

5.3 Module Management Commands...........................................................- 34 -

5.3.1 Open ASCII Display......................................................................... - 34 -

5.3.2 Query Module MAC address..........................................................- 35 -

5.3.3 Enter pass-through mode...............................................................- 35 -

5.3.4 Check software version.................................................................. - 35 -

5.3.5 Reset module..................................................................................- 35 -

5.3.6 Restore factory settings..................................................................- 35 -

5.4 Parameter Configuration Commands....................................................- 35 -

5.4.1 Write user configuration................................................................ - 36 -

5.4.2 Read user configuration................................................................. - 36 -

5.4.3 Read factory configuration.............................................................- 36 -

5.4.4 Modify factory configuration......................................................... - 37 -

RAK425 User Guide

5.4.5 Copy user parameters.................................................................... - 37 -

5.5 AP SAT Operating Commands............................................................... - 37 -

5.5.1 Query AP connection status...........................................................- 37 -

5.5.2 Query STA wireless signal strength................................................- 38 -

5.5.3 Scan for wireless networks............................................................ - 38 -

5.5.4 Get wireless network..................................................................... - 38 -

5.5.5 one-key networking command...................................................... - 39 -

5.5.6 WPS configuration commands.......................................................- 40 -

5.5.7 Check IP status................................................................................- 40 -

5.5.8 Ping command................................................................................ - 41 -

5.5.9 Query TCP connection status......................................................... - 41 -

5.5.10 AP Advanced Settings...................................................................- 41 -

5.6 Send and Receive Data Commands........................................................ - 42 -

5.6.1 Sending data................................................................................... - 42 -

5.6.2 Receiving Data................................................................................ - 42 -

5.7 Appendix................................................................................................... - 43 -

6 Sales and Service.................................................................................................. - 46 -

7 Revision History.................................................................................................... - 47 -

RAK425 User Guide

- 1 -

1 Quick Start

Thank you for choosing RAK425 serial pass-through module, the pass-through

module is extremely easy to use and feature-rich, to meet various needs of customers.

First, we use RAK425 evaluation kit to have a feel of it. The Evaluation Kit is shown

as Figure 1-1

Figure 1-1 View of Development Board

Table 1-2 Main Peripherals

Function Name Description

External

Interface

Power DC5V Power Supply DC 5V input

RS232

The main communication interface, standardserial port,

female port

RS485 Assistant communication interface, 485 industrial

Button

Reset Module reset button

WPS

WPS function,one-keyconfiguration to network (with a

router WPS)

Default

1. Press and hold 3 sec and longer, module will restore to

factory parameters

RAK425 User Guide

- 2 -

STEP1: Check before Power Up

Evaluation Kit contains a serial adapter cable, a USB cable, a module with

external antenna, also provides antenna with IPEX connector interface. If the module

is with external antenna, plug in with the external antenna. Connect the module serial

port with PC serial port (PC COM port or USB to serial port).

STEP2: State after Power Up

Normal phenomenon

When module is plug with power supply, module LED (Power LED) lights up,

followed by Status lights (Status pin output low), which means that the module start

properly.

If the power-Status light is not on, try pressing the Reset button, if the light still

remains off, please contact Sales.

In the module factory mode,after power up, it creates an open AP network named

RAK_AP_XXXXXX, XX is the last 6 digits of module MAC address, IP address is

192.168.7.1, by default DHCPServer is on. (Factory parameters can be modified)

When the Status light turns on, computer's wireless network list will find

RAK_AP_XXXXXX, as shown in Figure 1-3:

2. Press and hold shorter than 3 sec,one-key configuration

to network (with phone)

Sleep

Into ultra-low power mode button

Press and holdlonger than 5 sec and release, into the

ultra-low power

Press, and then release to wake up module

RAK425 User Guide

- 3 -

Figure 1-3 AP Scanning after Factory

Doubleclick to join the network (the Link lights up), an IP address will be

assigned as Figure 1-4 shows:

Figure 1-4 Join inFactory AP

RAK425 User Guide

- 4 -

Open browser and enterthe module gateway address 192.168.7.1, the default web

authentication interface pops up, enter authentication username: admin password:

admin. As Figure 1-5 shows:

Figure 1-5 WEB Authentication

The built-in WEBServer interface is shown. AP settingsand IO communication

settings can be viewed (i.e.UART interface and socket communication settings), as

shown in figure 1-6 and figure 1-7:

Figure 1-6 Factory Webpages

RAK425 User Guide

- 5 -

Figure 1-7 Factory IO Communication Test

STEP3: Pass-through Data Test

Open serial port tool, select the COM port. The default baud rate is 115200, data

bit is 8, and stop bit is 1, no parity check, no flow control. Then open network

debugging tools (TCP / UDP tools) to establish TCP client connection, with target IP

192.168.7.1, server port 25000, as Figure 1-8 shows:

RAK425 User Guide

- 6 -

Figure 1-8 Establish a TCP Client

After the TCP is connected, data can be exchanged, as Figure 1-9 shows. At this

point the module becomes a virtual serial port on the network, data from serial port

and network can be exchanged.

Figure 1-9 Factory Pass-throughTest

Keep in mind the state of the indicators

Status indicators:

Module started properly —— on (output low)

Module failed to start —— off

Module firmware is in upgrade —— quick flashing

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