Search found 15 matches

by mariovisic
Sat Oct 07, 2017 8:31 pm
Forum: General Chat (Game Boy Zero)
Topic: Progressive scan on composite
Replies: 10
Views: 53461

Re: Progressive scan on composite

Setting sdtv_mode=2 will simply set the output to PAL interlaced. The reason why the menu may look a bit better is that PAL is a higher resolution (576 visible lines instead of 480 lines). While the game menu will have more resolution; the games you're emulating will all be designed to run in NTSC (...
by mariovisic
Sat Jun 24, 2017 8:10 pm
Forum: General Chat (Game Boy Zero)
Topic: Progressive scan on composite
Replies: 10
Views: 53461

Progressive scan on composite

Hi all I've been using my game boy zero for a few months now, it's amazing. One thing that bothered me though was that the composite output on the raspberri pi was interlaced, for such a small screen it's less noticable but still annoying, some games it's more obvious where text will shift up/down 1...
by mariovisic
Mon Mar 13, 2017 11:33 pm
Forum: General Chat (Game Boy Zero)
Topic: Wi-Fi usb adapter not working
Replies: 9
Views: 10301

Re: Wi-Fi usb adapter not working

First find out if the usb device is detected by the system, it should come up if you type in lsusb . It should also be listed when typing in lsmod . If it's not listed then could be a power or data connection problem. Double check your cabling and try isolate your data wires (try twist positive and ...
by mariovisic
Mon Mar 13, 2017 6:06 pm
Forum: Support for Helder's Products
Topic: All in One PCB Support Thread
Replies: 995
Views: 1626147

Re: All in One PCB Support Thread

Edit: Threw a pair of 5 ohm resistors through to the speaker. Volume is great on the speaker now. The volume is very high on the headphone jack but it's much easier to adjust the volume slider just right. There is a lot of noise on the headphone jack, will change the PWM to shielded cables if it st...
by mariovisic
Sun Mar 12, 2017 9:41 am
Forum: Support for Helder's Products
Topic: All in One PCB Support Thread
Replies: 995
Views: 1626147

Re: All in One PCB Support Thread

Mulitimeter says 10.4ohm for R15 and R16 So you have audio going to the speaker with the 6 pin socket or not? Kind of... without modifying the board I only get audio on the speakers if I plugin something to the 3.5mm jack and then remove it. When I do that I get a good volume sound from the speakers...
by mariovisic
Sun Mar 12, 2017 12:56 am
Forum: Support for Helder's Products
Topic: All in One PCB Support Thread
Replies: 995
Views: 1626147

Re: All in One PCB Support Thread

Hi Helder Thanks for taking the time to answer all of our questions. My AIO board came with a 6 pin headphone jack, no sound through the speaker, headphones work fine, also plugging in headphones and then removing them means the speaker works fine. Bridging the 6th pin on the jack had no effect. Bri...
by mariovisic
Sat Mar 11, 2017 11:57 pm
Forum: General Chat (Game Boy Zero)
Topic: Gearbest 3.5 Screen Variant B?
Replies: 9
Views: 11573

Re: Gearbest 3.5 Screen Variant B?

That's the one, i've attached a photo of where you should put your 5v in. Although like I mentioned before the screen did work fine for me without the modification, so try that first; I only modded mine to debug an issue which turned out to be something else anyways. The screen won't turn on without...
by mariovisic
Sat Mar 11, 2017 10:35 pm
Forum: General Chat (Game Boy Zero)
Topic: Gearbest 3.5 Screen Variant B?
Replies: 9
Views: 11573

Re: Gearbest 3.5 Screen Variant B?

Your images don't seem to load, but if it's a recent gearbest purchase than it's likely the same board that I received. It actually works fine with 5V out of the box. Test yours out and see. If you do want to modify it to skip the regulator (can make it a bit more stable + more efficient with power,...
by mariovisic
Sat Mar 11, 2017 10:09 pm
Forum: General Chat (Game Boy Zero)
Topic: Wi-Fi usb adapter not working
Replies: 9
Views: 10301

Re: Wi-Fi usb adapter not working

Hi I have that same usb adapter, mine says "EW-7811Un" as the model number on the box. I'm using helders all in one board and I found I had to put the pi in to USB 1.1 mode to get it to work. I tried twisting the + and - USB cables together first and that didn't seem to help. You can find the instru...
by mariovisic
Fri Mar 10, 2017 3:25 am
Forum: General Chat (Game Boy Zero)
Topic: Powerboost unstable without battery connected
Replies: 3
Views: 4751

Re: Powerboost unstable without battery connected

I replaced the micro USB cable and the problem went away. Solid blue light, others are completely off. Power draw went down to 600mA as well, sounds like the dodgy cable was leaking electrons all over the place.

Thanks for the suggestions.