I bought one of these cheap, perhaps stupidly, before reading all the stuff about how slow they are, and the concerns over malware/spyware in the manufacturer supplied Kernel.
My screen arrived cracked, so the seller is sending me another... this may be an advantage?
I'd like to get this working with one of the normal TFT drivers - FBTFT? I realise this probably means ripping off and remaking the control board. A daunting, but probably educational and interesting project.
Has anyone come across anything that could help with this mission?
If I rip my cracked screen apart, is there any information I can get from it that may help others?
Re: Kedei 3.5" TFT LCD TouchScreen - teardown?
Hi,
This screen won't work with fbtft because the interface spi-lcd is no good (I wanted to use different "phrase" but it's not really for public and kids to read
). I did a "re-interfacing" but my screen got short (I did short and broken one of data signals to LCD controller 
).
For you own satisfaction, go ahead and build your own interface board
. I did, and wasted time & $$$ . But I got to play with something fun and inspired some people too - to control this screen from user-space program (but this only for v1.1/2.0 is possible because for those are known inits).
If you manage to get init's for v3 ... 6.1 / or for your version only, then you can control this screen from user space (by your own software in C/python/etc...).
Don't expect to find any datasheet for screen, or even if you manage to locate manufacturer, they won't send you anything anyway .
I'm surprised that you didn't bumped into my thread: viewtopic.php?f=44&t=124961
Have fun with reading my scribble
This screen won't work with fbtft because the interface spi-lcd is no good (I wanted to use different "phrase" but it's not really for public and kids to read
). I did a "re-interfacing" but my screen got short (I did short and broken one of data signals to LCD controller ).For you own satisfaction, go ahead and build your own interface board
. I did, and wasted time & $$$ . But I got to play with something fun and inspired some people too - to control this screen from user-space program (but this only for v1.1/2.0 is possible because for those are known inits).If you manage to get init's for v3 ... 6.1 / or for your version only, then you can control this screen from user space (by your own software in C/python/etc...).
Don't expect to find any datasheet for screen, or even if you manage to locate manufacturer, they won't send you anything anyway
.I'm surprised that you didn't bumped into my thread: viewtopic.php?f=44&t=124961
Have fun with reading my scribble