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Hardware > home made rumble cartridge / memory expansion

#137462 - spalnndsstest - Sun Aug 12, 2007 1:47 am

in that web, they explain step by steop how easy is to make a rumble cartridge with the motor of an old mobile phone and a few soldering points,

http://www.instructables.com/id/E3YC2DDF4A5NQH0/?commentflag=1186854531288

[Images not permitted - Click here to view it]

now the important question;

Has they don't sell memory expansion cartridge alone, we can't use free browsers like "links" or "okiwi" because they need a memory expansion pack,

so any can can xplain step by step how to do it (if its possible) ?
in case you don't know but you already got one, will be helpfull if you could open it and post a few pics so we know what kind of Integrated circuit should be bought to solder it in the slot2 cartridge NDS already got to pretect the slot,

thnks

#137465 - Lick - Sun Aug 12, 2007 2:22 am

The question is Why go through so much trouble? When you can simply buy a Slot-2 device with 32MB of RAM?
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#137468 - spalnndsstest - Sun Aug 12, 2007 3:10 am

bcos a supercard lite costs 50$

and modify the provided cartridge will cost a memory chip of 6$ and 5 minuts soldering a few points in the cartridge...

ppl that already got a slot1 flashcart dont wanna spend 50$ in a slot-2 flashcart just to use a ds browser few times a week,

they should sell 32mb of ram in a single cartridge for 8$...

but they don't a right now the single official software that need expansion memory is opera ds and they already give a expansion memory of 8mb when you buy it,

so is not a bad idea to make one (in my opinion)

#137470 - josath - Sun Aug 12, 2007 5:03 am

if the memory chip is only $6 to buy one, how come supercards with memory, cost like $20 more (and they must buy the memory chips in large quantities)?

And it's not exactly just five minutes of soldering... You will need AT LEAST 26 lines (24 for address+data, 2 for power) (see cartridge pinout)

#137484 - keldon - Sun Aug 12, 2007 9:02 am

It's probably $8 if you can find the right supplier, which the supercard manufacturers probably would have. Since there are fewer products to compete with and the unique selling points of each product they probably decided that the given price would yield the most sales - given the target market.

#137503 - spalnndsstest - Sun Aug 12, 2007 7:40 pm

when i said 6$ was just a random number,

i was just tryng to say it will be more cheap to make it that pay it.

#137506 - keldon - Sun Aug 12, 2007 7:59 pm

Well it cost me less to buy my memory separately when buying my EZ-Flash, despite having to pay for its delivery.

#137589 - spalnndsstest - Mon Aug 13, 2007 8:06 pm

where they sell just memory cartridge alone?

#137622 - wintermute - Tue Aug 14, 2007 3:18 am

spalnndsstest wrote:

but they don't a right now the single official software that need expansion memory is opera ds and they already give a expansion memory of 8mb when you buy it,


Which Nintendo sell separately for $15.

http://tinyurl.com/2jywum
http://tinyurl.com/26s9mj
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#137674 - spalnndsstest - Tue Aug 14, 2007 5:44 pm

15$ + 45$ for fedex....