This post is basically a continuation of the post here : http://www.grandrapidsdevs.com/o3dsxl-hardmod-example.html , except here I want to take the 4 wire mod all the way to the o3dsXL 7 wire hardmod.
In the previous post, I covered installing a 4 wire hardmod on an O3dsXL without any type of plug, as I wasn’t exactly sure what I wanted to use for a plug at that point. After some testing with the 4-wire mod, I decided that I wanted the speed of the 7-wire mod, it simply took too long to create and write dumps the the 3ds. I then began selecting a plug, one that had 7 pins that I could use to connect internally to the points I needed on the 3ds, with a female component that I could create a micro SD adapter with. After dealing with a couple different micro SD adapters, I came to the conclusion that I wanted to completely avoid taking one apart and soldering to the internals. While this did work, after reassembling the adapter I found them to be hard to get to a width that would allow easy insertion and removal. I searched for a solution, and came up with this:
I figured it would be easier to just use one of these as the adapter, I ordered a couple, you can find them here: https://www.sparkfun.com/products/11468
Next, I set out to choose a plug that would work well for this application. I ended up settling on some of these: http://www.ebay.com/itm/Mini-Micro-JST-1-0-7-Pin-Connector-with-Wire-x-10-sets-/181441351402?hash=item2a3ebf4eea:g:qVIAAOxymHRRxw3C . Honestly, looking back, I’m not sure if I would have picked these again, these are VERY SMALL, and they took quite a while to solder to properly. These were however, ultra small plugs, so once installed they look really nice.
So, here’s what I started with, the leftovers from the previous post where I did the 4 wire mod, the SD sniffer, and the new 7-wire male/female adapters.
I figured since I already had 4 of the 7 required wires ran, I would just solder the three remaining wires, then make my plug connections to the male end, using the opening in the corner of the O3dsXL that was made when I removed the carrying strap connector. I did need to use a dremel to open the location up a bit, but in the end, the plug looked to fit quite well
And here’s a shot of the additional wires soldered to DAT1-DAT3, these are required for the O3dsXL 7 wire hardmod
Here are a few shots of the wires all glued down and soldered to the Micro connector. I really don’t have any tips for soldering to the connector, I basically placed the connector firmly in the corner, and slowly proceeded to solder each wire. When done, I tested each of the wires to verify there were no shorts and that I had continuity in the proper places. Once I verified everything, I basically encapsulated the entire thing in hot glue, to make sure that it would not move again.
As you can see, everything ended up OK, and I’m pretty happy with the placement, makes it very easy to plug into, as you can see in this shot
The O3dsXL 7 wire hardmod works great and is much faster than the 4 wire! All in all I couldn’t be happier!