How to adjust LCD brightness? Also some flickering issues

General GBZ-related chat goes here. Share ideas, tips and tricks, or ask questions that don't fit into the hardware/software help forums.
Post Reply
User avatar
tinkerBOY
Posts: 666
Joined: Tue May 30, 2017 4:00 am
Has thanked: 288 times
Been thanked: 187 times

How to adjust LCD brightness? Also some flickering issues

Post by tinkerBOY » Sun Jun 25, 2017 11:48 pm

I bought a 3.5" lcd on aliexpress that does not come with a brightness controll. Is there any mod to adjust the brightness?. The one i bought is http://s.aliexpress.com/fmYBVjiA. although its different from the actual item i received. There's also a little flickering issue on the screen for some colors. Is this normal? I have tested the lcd screen on both 12v 2A and 5v 2.5A power supply on an old Raspberry Pi 1 Model B 512MB. Im still waiting for the raspberry pi zero and rpi3 i ordered.

It works on both 12v and 5v out of the box.

Please see attached pictures for the actual item.
IMG_1395.JPG
IMG_1395.JPG (1.22 MiB) Viewed 1111 times
IMG_1396.JPG
IMG_1396.JPG (1.08 MiB) Viewed 1112 times
IMG_1397.JPG
IMG_1397.JPG (989.27 KiB) Viewed 1111 times
IMG_1398.JPG
IMG_1398.JPG (954.95 KiB) Viewed 1111 times
Game Boy Zero Controllers available @ tinkerBOY.xyz
tinkerBOY Controller v3.0 - built-in usb controller, usb audio, and usb hub
tinkerBOY Controller v2.0 - GPIO buttons and builtin PWM Audio and Amplifier
tinkerBOY Controller v1.1 - simple pcb button
* DPI Adapter - better display for GBZ
* keyboard converters - IBM XT/AT Soarer's Converter | ADB to USB Converter

cobramike
Posts: 230
Joined: Sat Oct 29, 2016 12:31 am
Location: Gelderland, Netherlands
Has thanked: 55 times
Been thanked: 60 times

Re: How to adjust LCD brightness? Also some flickering issues

Post by cobramike » Mon Jun 26, 2017 12:11 am

I have the same screen. And the same problems. I still dith the mod and i use composit cable and i dont have the problem anny more. And i dont now how to do the controles. Because its not there.
Whooo Stop befor ask in a post. First use the search or the wiki befor you make a topic.. Just saying.........

User avatar
tinkerBOY
Posts: 666
Joined: Tue May 30, 2017 4:00 am
Has thanked: 288 times
Been thanked: 187 times

Re: How to adjust LCD brightness? Also some flickering issues

Post by tinkerBOY » Mon Jun 26, 2017 12:23 am

cobramike wrote:
Mon Jun 26, 2017 12:11 am
I have the same screen. And the same problems. I still dith the mod and i use composit cable and i dont have the problem anny more. And i dont now how to do the controles. Because its not there.
What do you mean by "dith the mod"? What mod?

Thanks!
Game Boy Zero Controllers available @ tinkerBOY.xyz
tinkerBOY Controller v3.0 - built-in usb controller, usb audio, and usb hub
tinkerBOY Controller v2.0 - GPIO buttons and builtin PWM Audio and Amplifier
tinkerBOY Controller v1.1 - simple pcb button
* DPI Adapter - better display for GBZ
* keyboard converters - IBM XT/AT Soarer's Converter | ADB to USB Converter

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest