Author Topic: ED GB X7 remote menu mod  (Read 1051 times)

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Offline James Cree

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ED GB X7 remote menu mod
« on: November 23, 2019, 04:11 PM »
It was bugging me that the in game menu for the X7 couldn't be accessed with a button combo on the controller.
It was the one flaw (other than the shitty cheat system) on an otherwise great cart.

I like to play games, even handheld games, on a proper screen via consoles and their various accessories.
Having to get up, walk across the room and click the cartridge every time I wanted to access the menu didn't appeal to me, so I set about finding a solution.

I have installed a clap sensor inside my X7 cart, so now all I need to do is clap my hands and the in game menu appears.
This is useful for playing the X7 via Super Gameboy, Gameboy Player or Wide Boy.

I am not suggesting anyone else try this.
This is merely an account of what I did to my cartridge.
If you do this, you will void any warranty that you have and possibly break your cartridge if you don't know what you are doing.
Only attempt this if you are comfortable with fine-pitch soldering/desoldering surface mount components in tight spaces.


I started by desoldering the menu switch from the board.
I don't like hot air, so I used a fine tip iron and desoldering braid to wick up most of the solder, then applied heat and gentle opposing pressure to separate the legs from the board one at a time.


The switch I am using is the VM-CLAP1 from Verbal Machines LTD.
I took note of the 3 contacts that are required for operation.


I found points on the X7 board that correspond to the 3 contacts on the clap switch. GND and OUT are where the old clicky switch was attached, 5v PWR will be tapped from one side of the resistor on the left.


I then flipped the switch unit over and made the solder nubs under the microphone as flat as possible by clipping them down and then sanding them flat.


Next, I cut the hole in the front of the X7 case.
I started with a 2mm and worked my way up to a 7mm bit, drilling slowly. I then took my time with a dremel and needle files to make sure I got a neat hole in exactly the right place, frequently trying the microphone against the hole and adjusting the direction of my filing as needed.


I then soldered the 3 wires to the clap switch. I used 30 gauge, silicone sleeved wires. I want them to be flexible because the case will have to be opened in the future to change the cart battery.
I soldered the wires at an angle so they are naturally clear of the screw post in the cart.
I soldered them on the top of the board so that there was no chance of the joints fouling on the X7 board when the cart was reassembled.


I fitted the clap switch into the top half of the shell, pushing it down as flat as it would go.
My hole was accurate enough that mechanical friction holds the board in place, and the top of the board is flush against the top of the cart shell, so it's perfectly straight. If I had not made a perfect hole, I would have squirted hot glue between the board and the case on each side to keep it in place.
I also cut and placed some insulation tape on the bottom of the switch board.


I then cut my wires to the correct length so that the case could be opened again and the 2 halves laid open next to each other.
I soldered the wires from the 3 contacts on the switch board to the corresponding points on the X7 board, taking great care not to short the "out" pad with the chip next to it.


I carefully closed the cartridge up, taking care not to trap the flexible wires in the process.




And it works fine! Yaaay!


Video of it in action:
https://www.youtube.com/watch?v=zJhhYvbAqDQ&feature=youtu.be

Offline Marteicos

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Re: ED GB X7 remote menu mod
« Reply #1 on: November 23, 2019, 04:22 PM »
This is truly amazing!

I was thinking myself in something like a infrared sensor to use a remote control.

Offline FeverDrive

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Re: ED GB X7 remote menu mod
« Reply #2 on: November 24, 2019, 04:59 AM »
Wow this is really ingenious.
This mod could be implemented on many console's reset switch to have a remote reset function.
Good job!!
We must embrace pain and burn it as fuel for our journey.

Offline James Cree

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Re: ED GB X7 remote menu mod
« Reply #3 on: November 25, 2019, 11:42 AM »
This is truly amazing!

I was thinking myself in something like a infrared sensor to use a remote control.

Yeah I did look at infrared kits.
They are surprisingly bulky, even the ones with a tiny footprint seem to require quite a bit of height.
Plus they all seem to come with a hideous, generic Chinese remote with 30 buttons intended for use with LED lamp setups.

Plus, I like not having another remote. :-)

Offline James Cree

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Re: ED GB X7 remote menu mod
« Reply #4 on: November 25, 2019, 11:44 AM »
Wow this is really ingenious.
This mod could be implemented on many console's reset switch to have a remote reset function.
Good job!!

Thanks bud!
Yeah that would probably be possible.
Most high-end flash carts can reset to the main menu anyway though. And I'm not sure how happy I would be drilling microphone holes in my immaculate, original consoles...

Offline D2DEZEL

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Re: ED GB X7 remote menu mod
« Reply #5 on: December 13, 2019, 11:43 AM »

Offline James Cree

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