atari keychain mod

[apexgrodd]

I have two atari keychains i intend to mod i want to use the paddle and first; add a microsd card slot and a mini usb plug ;second add a second fire button ;third change the potentiometer with a slide thru one so i can also have a 4 position joystick with a microswitch in it going through the pot to so it will control all games atari or nes , withought changing the overal looks of the keychain ;
fourth i want to not use the tv box withit instead i will make a gameboycartridge into an A/V port to accept the controller and use my gba sp as a screen with a flip on it so i could mount it upside down off of my hat brim and have the gba sp power the joystick. i am currently trying to map as much of the boards as i can and will soon be making a oscilloscope cart for my gba to use in the modification any suggestions will be appreciated and any info i gather i will add to this post

[tom61]

Ambitious. Best of luck, as your mods are rather extreme and not very feasible, and I have little idea how you could pull off pretty much anything in your post.

[kylechu]

What?
I didn't catch any of that. everything you said could mean like 5 different things. Could you rephrase it?

[nevermind1534]

Punctuation is your friend (correct punctuation, that is).

[Steamdnt]

I have two atari keychains i intend to mod i want to use the paddle and first; add a microsd card slot and a mini usb plug ;second add a second fire button ;third change the potentiometer with a slide thru one so i can also have a 4 position joystick with a microswitch in it going through the pot to so it will control all games atari or nes , withought changing the overal looks of the keychain ;
fourth i want to not use the tv box withit instead i will make a gameboycartridge into an A/V port to accept the controller and use my gba sp as a screen with a flip on it so i could mount it upside down off of my hat brim and have the gba sp power the joystick. i am currently trying to map as much of the boards as i can and will soon be making a oscilloscope cart for my gba to use in the modification any suggestions will be appreciated and any info i gather i will add to this post

You cant do that, its not possible to make it that small, you would probably need like an MIT education or more, and judging by your spelling, you don't Have one.

[SpongeBuell]

I have two atari keychains i intend to mod i want to use the paddle and first; add a microsd card slot and a mini usb plug

No.

second add a second fire button

No, unless it has the exact same functionality as the first (in which case, what's the point?).

third change the potentiometer with a slide thru one so i can also have a 4 position joystick with a microswitch in it going through the pot to so it will control all games atari or nes , withought changing the overal looks of the keychain ;

I have a hard time decrypting what the hell you're trying to say, but in a word: No.

fourth i want to not use the tv box withit instead i will make a gameboycartridge into an A/V port to accept the controller and use my gba sp as a screen with a flip on it so i could mount it upside down off of my hat brim and have the gba sp power the joystick. i am currently trying to map as much of the boards as i can and will soon be making a oscilloscope cart for my gba to use in the modification any suggestions will be appreciated and any info i gather i will add to this post

See above

Edit: Oh, and moving to Atari forum...

[bicostp]

Sponge fail.

Moving to the REAL Atari forum, not the Atari REFERENCE forum.

[palmertech]

I think that is is very possible to use a multi-directional tact switch in an Atari controller keychain, the wiring would be pretty simple, too.

As for the rest: Perhaps if you clarify what you want to accomplish, we can help more?