/* Void Main's Wifi Tips */

{ Wifi/OpenWrt Tips(); } else { main(); }
ยป Void Main's SD Card Mod
#include <stddisclaimer.h>

When might you use this tip?
- You need more local disk space on your WRT54G

Pros: Cheap.

Cons: Tricky soldering.

Tools/parts Required: Soldering iron. Micro SD card and SD adapter.

Let us begin:

NOTE: Click on the thumbnail images in this tip to zoom in on the image.

I won't really go into detail because there are 50 other pages out there for how to add an SD card. Mine is a little different in that I soldered the wires directly to a Micro SD card adapter which allows you to use a Micro SD card as a removable disk. I started with a 2GB micro card and realized I didn't need anywhere near that much space so I am currently running a 256MB micro card.

Micro SD card and SD adapter

Once I found the appropriate GPIO pins on my board I ripped off a chunk of old IDE cable and soldered one end to the GPIOs (tricky) and the other end to the appropriate contacts on the Micro SD adapter. I then glued the card to the top of the switch and cut a hole out of the back of the case for it to stick out. I currently have the root filesystem on SD card.

Micro SD card and SD adapter

If you look closely you can see the SD card sticking out of the back of the router just above the switch ports:

Power over Ethernet

I used GPIO pins 3, 4, 5, and 7, along with 3.3 volt and ground for a total of 6 wires needed to solder.

GPIO 5, 4, and 3

GPIO 5, 4, and 3

Pick GPIO 7 up off the DMZ LED and power and ground from the serial port header.

If you want more help or have any questions you can ask in the forums at www.openwrt.org and I would be happy to help.

My forum topic on OpenWRT forums
Lot of good info on this OpenWrt page.

Just ran across this site which looks to have a lot of good info and he also used a Micro SD card.

Further Reading:
Linksys GPL Firmware page (Thank you Linksys and thank you Richard Stallman (GPL)!!)
My forum topic on OpenWRT forums
OpenWRT Web Site (my wireless web server runs it)
My revival thread (Thanks Jim!)
My wireless web server thread
Jim Buzbee's Linux on WRT54G page
Seattle Wireless WRT54G page
French Version of This (Thanks m.! Forum Topic)
P.S. SVEASOFT and Windows are not supported here.

Have fun!


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