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kbr-net / sdrive-max

Arduino based Atari 8-bit Floppy Emulator with Touchscreen
http://www.kbrnet.de/projekte/sdrive-max/index.html
GNU General Public License v3.0
94 stars 22 forks source link

help HX8347I #25

Closed ascrnet closed 4 years ago

ascrnet commented 4 years ago

Hi all,

I have an HX8347I screen which flickers a lot using the v1.0 or v1.1 version connected to the notebook since I still don't make the cable, is that flicker normal that seems to temper the main screen where the units are?

link HX8347I https://www.aliexpress.com/item/32905829057.html

Regards

kbr-net commented 4 years ago

No, i think, this is not normal.

ascrnet commented 4 years ago

connecting to atari looks worse https://www.atariware.cl/archivos/sdrive-max/error-screen.jpg

Regards

iCityWork commented 4 years ago

It looks like an under-voltage. I always use an external 12VDC 1A power adaptor and I never have display issues.

ascrnet commented 4 years ago

here I put a video to see the effect of the screen and that by clicking on READY the screen looks perfect https://youtu.be/N5whhq6k62E

I have the impression that it is incompatible, this screen has the chips lvc245a https://www.atariware.cl/archivos/sdrive-max/hx8347i.jpg

Regards

iCityWork commented 4 years ago

It is power! Trust me, run it on an external power adapter and try again. I have seen that many times and that is what is causing it. The computer SIO 5VDC is such low power the Arduino and touch screen are getting too little. Try and see if it solves that issue.

kbr-net commented 4 years ago

I think also it is power leakage. If it was incompatible, the display would be always wrong...

ascrnet commented 4 years ago

Thanks for all the help, it seems that this screen consumes a lot of voltage. Buy another screen ILI9341 I hope it is better and consume less voltage to use only the SIO without external sources.

Regards