Bad contact on button

[Marty33]

Hello all. (sorry for my bad english)

I use Helder's AIO, i have case, founded on Ali.

But, i must press very very hard on buttons for have contact

I test with the contactor of a SuperNes (famicom), from Ebay, and it's work better...

What can i do for have better contact on standard GameBoy contactor ?

[Jack Schitt]

Are they in exactly right position? Otherwise I recommend buying some other rubber pads in case they'd work better.

[rodocop]

I ran into the same problem with my Helder board. I had an issue where I had to press super hard for XY, but my AB and all other buttons worked great. I purchased a few different sets of button membranes, some from ebay, some from handheld legend (original gameboy replacement membranes). And found that some, even though they looked the same, worked different. It seemed like the black pad in the middle of the membrane was slightly different between the the different ones that I had. After switching a few times i found a set that worked good. So you might just have to buy some more and test out a few varieties.

It also might be worth mentioning that the XY pads on Helders board are slighty different than all the other pads, since they have the hole in the middle, they have a swirl pattern, maybe that also made a difference for me?

Also note, before I found out it was a button membrane issue I reprogrammed the board, which helped with repeated button presses, but did nothing for the super hard button presses. I also added spacers between the buttons and the membrane, which also didn't really help.

[RetroRocket]

Only thing I can think of is that there may be too much travel between the center of the hollow button (where it contacts the silicone) and the PCB contact. Like @rodocop mentioned, try cutting a couple circles out of plastic to fit inside the buttons so there's less distance required from the button in the "up" position and pressing against the board.

[Marty33]

I have already maked circles with old glass of original GameBoy.

However, feeling is horrible. Double, triple, and more if i press arrow. A, B, X, Y pressed... or not... sometimes... if she wants.

With the piece of plastic, the contact is more straight, but now is very noisy...

HORRIBLE

Help

PS: @rodocop you have link for your best membrane ?

[rodocop]

I bought some of these
https://handheldlegend.com/collections/ ... utton-pads

And some of these
http://m.ebay.ca/itm/Gummipads-conducti ... nav=SEARCH

I can't remember which ones worked better...

[Marty33]

My history...

I discover GBZ on a video from YT.

My project launched...

I buy GameBoy DMG, buttons, Raspberry Zero W, PSP Joystick, Super Nes controller, Super Nes Famicom controller, Glass with GBZ, HDMI Screen, Led, Powerboost 1000c, micro usb, wires, solder, Helder's AIO, small audio.

Many month, plans, measures, 3D printing, purchases of many many tools....

I turn on my Gameboy, all is here, Recalbox work and....... the buttons works whenever they want. The cross works sometimes or i must press HAAAAAAAAAARD !

It's a jock

Say me there is a way, an alternative. Other button. With no silicon contact ?

[rodocop]

You could use tactile buttons. But not sure how you would implement them with helders AIO.

[Helder]

Have you tried to rerprogram the boards with new HEX files for battery monitor that also make the button presses more precise?

[Marty33]

No. I receive your PCB, i don't touch anything...

You think probably is coming from the program of your creation ?

A program can do that ?