Saturday, 29 December 2012 21:09

Flashing OpenWRT to TP-Link TL-MR3020 3G/4G Wireless N Router

Flashing OpenWRT to TP-Link TL-MR3020 3G/4G Wireless N Router
This is a guide on how to flash TP-Link TL-MR3020 N Router with OpenWRT.
 
TL-MR3020 N Router Specification
  • CPU Atheros AR9330
  • RAM 32MB
  • NAND 4MB
  • Dimensions 74mm x 67mm x 22mm
  • Power consumption 1.25W Max.
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Saturday, 13 October 2012 22:51

USB Audio Adapter work with OpenWRT

USB Audio Adapter work with OpenWRT
This article shows you how to play audio from a USB audio device which is connecting to a TL-LINK TL-WR1043ND wireless router.
 
Prerequisite
  • Wireless router flashed with OpenWRT. This project based on TP-LINK TL-WR1043ND wireless router.
  • USB audio adapter which supported by Linux. As shown in figure below is the USB sound audio that I'm using.
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Tuesday, 25 September 2012 20:53

Wireless Router Home Automation

Wireless Router Home Automation
This project eliminate the use of an expensive Wifi/Network Shield but still able to control home appliances from any where. You may already own a wireless router which support OpenWRT or else you can get a very cheap wireless router such as WR703N for this project.
 
In order to eliminate install many packages on the router, I am using HTML and Javascript for the web interface, while hardware interface is using Lua which is come with OpenWRT. The whole process is just install a serial driver (see step below) to make the instruction simple & keep the router free of resources.
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Friday, 21 September 2012 10:45

Lua sleep function in milliseconds

Lua Socekt must be use in order to call sleep function in milliseconds.

An example to install Lua Socket to OpenWRT

opkg update
opkg install luasocket

 

An example to sleep 10 milliseconds

require "socket"
socket.sleep(0.010)

 

Lua can only sleep/wait in seconds (not milliseconds) without install Lua Socket. Code below shows the sleep funciton.

function delay_s(delay)
   delay = delay or 1
   local time_to = os.time() + delay
   while os.time() < time_to do end
end

 

Example to sleep 5 seconds

delay_s(5)

 

 

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Saturday, 15 September 2012 15:00

Sending Message to Serial Port of Router using Lua

Sending Message to Serial Port of Router using Lua
A few ways to send message to serial port of router which flash with OpenWRT. PHP;ser2net; socat; Lua and etc.
  • PHP require to install lighttpd,lighttpd-mod-cgi,lighttpd-mod-fastcgi,php5-cgi,php5-fastcgi,libsqlite3, installation is complicated & consume resources.
  • ser2net/socat is very simple but did not support web service.
  • Lua comes as a default in openWrt and support web service. The goodies is OpenWRT using Luci for web GUI and LuCI is an embedded rapid application development framework written in Lua.
Prerequisite
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Friday, 07 September 2012 23:01

OpenWRT in Client Mode

OpenWRT in Client Mode
Client mode uses its wireless connection as the WAN interface, and shares the internet connection only to the LAN ports. It is not seen as an access point by laptops or other computers scanning for AP's and does not accept wireless connections from client devices.
 
As shown in figure below, the new SSID (wwan) cannot be seen by other client devices nor accept wireless connection from client devices. Therefore the client devices (Notebook3 and Notebook4) must connect to the Wifi router using network cable.
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Sunday, 26 August 2012 17:49

TP-LINK TL-WR1043ND Router + Web Cam = IP Cam

TP-LINK TL-WR1043ND Router + Web Cam = IP Cam
This is an article to guide you on how to use a webcam attach to a router and act as an IP camera. At the end of the article, it show you how to adding authentication to the project.
 
 Prerequisites
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Saturday, 25 August 2012 12:49

TP-LINK TL-WR1043ND router as a Print Server

TP-LINK TL-WR1043ND router as a Print Server
This article shows the step on how to setup the TP-LINK TL-WR1043 router as a print server. The USB printer is connected to the USB port of router in order to support print sharing from network.
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Wednesday, 22 August 2012 15:49

OpenWRT in VirtualBox

OpenWRT in VirtualBox

If you are considering to test OpenWRT without a router or you don’t want to flash the router firmware over and over again. Here is the right place for you.

OpenWRT in VirtualBox is an image file run in VirtualBox. By the time I write this article, the VirtualBox & OpenWRT image version are Ver 4.1.20 and 10.03.1 respectively. 

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Tuesday, 21 August 2012 10:07

TP-LINK TL-WR1043ND router as a Samba File Server

TP-LINK TL-WR1043ND router as a Samba File Server

Samba is a free software re-implementation of the SMB/CIFS networking protocol, Samba provides file and print services for various Microsoft Windows clients.

First, this assumes that you already have OpenWRT installed. Read this article if you haven't upgrade firmware to OpenWRT.

Second, you must have a working USB flash drive attach to router. Read here for installing USB flash drive.

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