Hardware

DD-WRT with Linksys WRT54G2

HanaDaddy 5 Comments


My 5 years old Netgear (WGR614v2) router started dropping wireless connections which made me really annoyed. So I finally decided to buy a new wireless router.

It was a very difficult decision to decided which wireless router, but since I wanted to try the DD-WRT firmware and it was most likely supported in Linksys router series , I started searching WRT54G models. But then there were several WRT54G series which made me confusing.

After spending some time to compare models I bought WRT54G2. It appears that WRT54GL is the most compatible router with DD-WRT, but I chose the G2 because I thought it was the most recent version of the WRT54G series and comes with the best quality which was an incorrect assumption. But most of all, G2 was cheaper than GL about 10 bucks around 45 bucks.

Ok, so I tested the wireless connection out of the box without DD-WRT, and it was working nice, not dropping any connection even if I visited graphic intensive websites.

And then I performed the DD-WRT firmware setup for WRT54G2 using this URL – Linksys WRT54G2 Flash Instructions from DD-WRT.COM website.

You will have to be really careful and closely follow the instruction. Otherwise you will brick your router which means corruptting the router and it will not operate normally again. During the process, you will upload three files one by one and the router will reboot each time. Unlike the instruction, my router didn’t reboot by itself after each data file uploading. So I manually rebooted the router. Just make sure that you wait enough time (usually about 5 mins) before you manually reboot as mentioned in the instruction

Please note that only DD-WRT micro version is supported for WRT54G2. Also there is no way to revert it back to the original Linksys firmware as of this writing. If you are considering to purchase Linksys wireless router to try DD-WRT, make sure you buy better routers such as WRT54GL which supports full DD-WRT version. For the complete supported device list , check out HERE.

Luckily, it appeared that I successfully updated the firmware that I was able to login to admin website by connecting http://192.168.1.1 . The default ID is blank and Password is ‘admin’.

Everything looked very nice, even though it was micro version, there are more options than I needed. What I really liked about the firmware were the wireless client connection status and graphical bandwidth usage page. It provides detailed information about the current status of the routing that I really loved it.

However, it seemed that the wireless connecting quality was degraded compared to the original Linksys firmware. Connection became unstable and slower than before. I tried everything googling everywhere but the quality did not improved as I hoped.

Now I wanted to go back to original Linksys firmware, but I found out that there was no way to go back as of now. There was only one way. To wait until the developers come out with the solution to revert back to the original state.

I was terrified and felt really bad of myself installing DD-WRT without checking out more carefully. I searched all the website intensibly for the solution to stabilize my wireless connection and tried every possible wireless options.

And finally I have the wireless connection stabilized and now I am so relieved that I didn’t waste my money. I will show my DD-WRT settings in the next blog entry.

Thank you for reading my blog and enjoy!

Here are the setup procedure and other resource links related to DD-WRT. Please make sure you read them all thoroughly before installing DD-WRT.

Here is my next blog article on the tuning the settings.

Tuning DD-WRT to use with Linksys WRT54G2

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Keyboard remap – Pause Break key as DEL key

HanaDaddy 16 Comments

So here is my finding. BTC 6100c . I use quite number of desktop applications at work which makes me moving my right hand and arm around alot between Mouse and Keyboard.

I searched some ergonomic keyboard and mouse and realized that there are mini keyboards(88, 89 keys) shorter then the regular Keyboard with 101 keys in length.

Believing that shorter keyboard will help relieve the pain, I searched Internet forums and shopping sites for the best mini keyboards. And BTC 6100c satisfies my requirements.

  • The key layout must be similar to the notebook key layout. – Some mini keyboards has very awkward placement of keys for backslash ” , windows , and control keys. I was able to find some keyboards that has layout exactly very similar to the notebook keys, but they cost more than $100.
  • They must be scissor design keys – Just like notebook keys.
  • The price must be less than $30. I don’t want to spend fortune on a keyboard.

The price was reasonable $19.99 with extra 7 dollars for shipping and tax. USB, mini, scissor action keys. It’s perfect for me.

I know. BTC-6100C feels cheap. But it’s not really bad if you looking for bargain. If you want better quality, try ‘Kensington Slim Type’ keyboard. I bought it and use at home and it’s better quality than 6100c. But it’s not a mini keyboard and it’s not full length keyboard either. It’s about $30. Still it’s a very good price. Kensington Slim Type Keyboard – PC ( 64365 )

However there was a very minor problem with the key layout. You see, I mainly use MS Outlook all day and use the DEL and HOME keys frequently to manage the emails. So the placement of DEL and HOME keys must be located in the most convenient place. And the convenient position is top right corner of the keyboard where I can directly access from the mouse easily.

Pause Key But there is PAUSE/BREAK key at the perfect location. And the DELETE key is located 2 keys to the left from the PAUSE key. I was trying very hard to get used with the layout, but it was absolutely uncomfortable!

So I began searching the Key Mapping program and forums. But all of the softwares were not able to handle the PAUSE KEY remap.

These freeware keyboard remapping tools are basically showing the registry scan code values in GUI and help you easily edit them.

Some of them are

  • KeyTweak – Not bad
  • MapKeyboard – Intuitive interface. Simple , but .NET is required (2.0?)
  • SharpKeys2 – For me, this is the best since it was showing the correct scan codes so I was able to compare with the actual registry value. Unfortunately, Pause /Break Key remap requires you to actually touch the registry manually.

Ok, I will explain how I got the PAUSE key working as DEL key.
Under the Windows XP, scan code mapping can be stored into the registry and keyboard mapping can be changed easily under

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout

You can find the detailed keyboard scan code layout information from the Microsoft website
(Search scancode.doc in Google Website)

Generally, a scan code can be represented as 2 bytes binary data. Caps Locks scan code is E0_3A. By listing the scancode pairs (original against the new scan code) in the above registry key, windows remap the keyboard layout.

However, it is not true for the PAUSE key.

  • Pause Key generates “E1 1D 45 E1 9D C5” scan code. That is quite long, HUH?
  • Also when the PAUSE is pressed with ALT or CTRL , they generate E0_46.

I decided to experiment with the registry scan code mapppings. First I added the conversion using the first 2 bytes from the PAUSE key scan codes (E1 1D) to be converted as DEL key ( E0 53 )

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Windows Registry Editor Version 5.00
 
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,02,00,00,00,53,e0,1d,e1,00,00,00,00

pause_to_del.reg : download and double click to update the scan code entry in your registry. Please note that this file will reset any mappings you already have set.

But strangly, NUM LOCK event is also occuring when I press “Pause”. Since I will not use NUM LOCK KEY at all ( I don’t have number pad anyway), I will add extra mapping entry to convert NUM LOCK event to be converted as “NO EVENT”.
Also I realized that in order to Ctrl + Alt + Del working properly , I need to add conversion for E0_46 => E0_53.

These two additional scan code mapping entries can be added easily with SharpKeys. Make sure you click on the “Write to registry” button and reboot the machine to make the changes effective.

Below is the final output of SharpKeys.

Final registry entry shown with Sharp keys

So, basically you will need to give up NUM LOCK function in order to remap PAUSE Key. But it’s possible to remap.

Also this PAUSE key can be used to setup to trigger any two key events for a single key stroke, too.

Here is the final reg entry.

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Windows Registry Editor Version 5.00
 
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,04,00,00,00,53,e0,1d,e1,00,00,45,00,
  53,e0,46,e0,00,00,00,00

registry

And this is the file final.reg.
Try to use right click and select ‘Save Link As’.
Thank you for visiting Hana & Sarah’s Freeware Blog

Have fun!

11/17/2011 : I tested with Windows 7 and it works too. Using only Sharp Key would not work because it does not give you the option to select ‘E1_1D’. So you would have to run the registry file that I provided in the article to make this work. Or you can manually edit the registry entry. Thank you.

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