Search found 39 matches

by floppes
Mon Jun 24, 2019 5:05 am
Forum: Hardware Help
Topic: HDMI Display Problems with Pi 3A+ and LS060R1SX01 screen
Replies: 6
Views: 2273

Re: HDMI Display Problems with Pi 3A+ and LS060R1SX01 screen

I had a similar problem with a 320x480 DPI display. It's native orientation was portrait mode, but I wanted it to be in landscape mode. Just rotating it resulted very similar to your second picture: big black borders and the aspect ratio didn't change. By forcing the framebuffer size ( not the maxim...
by floppes
Tue Jun 11, 2019 2:43 am
Forum: Support (Game Boy Zero)
Topic: Pwm audio with retropie 4.4 and fresh install
Replies: 4
Views: 646

Re: Pwm audio with retropie 4.4 and fresh install

Did you set the audio output in the RetroPie Audio setup to "Headphones - 3.5 mm jack"?
RetroPie setupShow
audio1.png
audio1.png (80.67 KiB) Viewed 619 times
Audio setupShow
audio2.png
audio2.png (4.93 KiB) Viewed 619 times
by floppes
Thu May 23, 2019 6:26 am
Forum: Support (Game Boy Zero)
Topic: Connecting shoulder buttons to ground - where? [SOLVED]
Replies: 5
Views: 616

Re: Connecting shoulder buttons to ground - where?

Yes, the Pi has several GND pins. They are all connected internally. You can use any of them.

Just make sure your solder connection is good and the wire is thick enough for the current it has to conduct.
by floppes
Thu May 23, 2019 5:23 am
Forum: Support (Game Boy Zero)
Topic: Connecting shoulder buttons to ground - where? [SOLVED]
Replies: 5
Views: 616

Re: Connecting shoulder buttons to ground - where?

Generally speaking, you should have all GNDs connected. The GND of the Raspberry Pi should be connected with the GND of your PCB and the GNDs of your shoulder buttons. That's called a "common ground". How you do this is up to you.
by floppes
Tue May 21, 2019 9:20 am
Forum: General Project Chat
Topic: New RetroStone SBC gaming handheld
Replies: 4
Views: 1151

Re: New RetroStone SBC gaming handheld

I was under the impression this chip didn't support DPI/RBG but one of the pictures clearly states "AV->RGB24". I guess I've been mistaken? The Kickstarter campaign of the original RetroStone has the same picture with "AV->RGB24". I think the only difference is the aluminium case and the lack of th...
by floppes
Tue Apr 02, 2019 1:35 pm
Forum: General Hardware
Topic: Change 3.5" HDMI display boot logo
Replies: 40
Views: 14737

Re: Change 3.5" HDMI display boot logo

I have updated the project to v2.0 and added a Python script. This script allows you to read and write the firmware from a Raspberry Pi through a regular HDMI cable. No modified cable needed. You just need to enable the second I2C interface on the Pi, the GitHub page explains how this is done. With ...
by floppes
Wed Mar 20, 2019 3:19 pm
Forum: Support (Game Boy Zero)
Topic: KeDei HDMI screen feels sluggish
Replies: 11
Views: 1719

Re: KeDei HDMI screen feels sluggish

From my experience, you can't rely on the KeDei displays any more. They have changed the panel a few times but kept the same date on the PCB. The latest KeDei display I got had a screen which wouldn't fit in the shell because it is about 1 mm too wide. And another downside: the response time is very...
by floppes
Tue Jan 29, 2019 11:34 pm
Forum: Interest Gauging
Topic: daddelkischde AIO
Replies: 4
Views: 3720

Re: daddelkischde AIO

You can buy one here: https://www.zeroboy.eu/shop/aio-daddelk ... b/?lang=en
There are only few left, the next batch will arive in about 6 weeks.
by floppes
Sat Dec 08, 2018 8:40 am
Forum: General Hardware
Topic: Change 3.5" HDMI display boot logo
Replies: 40
Views: 14737

Re: Change 3.5" HDMI display boot logo

I have just released a new version of both the Arduino code and the GUI tool. Both need to be updated. I have added checksums to the telegrams to make the communication more reliable. The connection problems should be solved as well. Sometimes the first few bytes from the Arduino don't reach the PC....
by floppes
Sun Dec 02, 2018 3:28 am
Forum: General Hardware
Topic: Change 3.5" HDMI display boot logo
Replies: 40
Views: 14737

Re: Change 3.5" HDMI display boot logo

Marty33, good to see it working. I will update the software to use 9600 baud. 115200 seems to cause problems for some users. About the unknown firmware: The GUI tool "knows" only a few firmware variants. This is a precaution not to modify every firmware and corrupting it. You can send me the file fi...