@mindthomas Sorry my bad....Did you made it alone, so that you program the whole project just by yourself, or there were hole crew involved? I mean team work.
Hello, can you help me? really need help, I have this lcd for a while and I could not use, tb pic 18f4550 program, but program in C, one can give me strength so I can use it? enm not found any material library for this LCD!
@lucasawr I've also got a library for this LCD in C - Microchip C18!
You have to download Microchip C18 and the MPLAB - you can get those free of charge, with a small limitation which means that you can't compress your code that much!
Hello, can you help me? really need help, I have this lcd for a while and I could not use, tb pic 18f4550 program, but program in C, one can give me strength so I can use it? enm not found any material library for this LCD!
A couple of questions. Are you "manually" reading the touch screen or do you use a touch screen controller such as the ADS7843? If the latter I'd be interested in getting some more info from you about how you calibrate the screen. I'm currently playing around with a similar screen and I find I can't really get the precision I want out of it.
My display seems fairly accurate in the X-axis but the Y-axis differs depending on where you poke it. It's annoying :)
@mindthomas You wouldn't mind sharing a few snippets of code? I've found the following pdf from TI but quite frankly I've forgotten all that math during the last 15 years so I'm having a hard time understanding it. It also seems like some pretty heavy calculations (floats) to be doing on a micro. I figured there must be a more efficient way of doing it. The way I'm doing it now assumes that the Y-axis is perfectly consistent which sadly it is not.
The PDF you got there uses pretty much the same calculations I'm using.
But to show you guys how this is done, I will upload the comple source code for this project - including Display controller (and graphics/GUI commands), Touch controller, touch calibration and some menu system.
@mindthomas Sweet man. I just had a quick look and I can see I'll be spending many many hours trying to understand it all and porting to my PIC :D Really appreciate you sharing your work.
single project ?
deboxonline 1 month ago
@deboxonline Sorry, what do you mean?
Yes, all you see in the video is in a single project -> single HEX file.
mindthomas 1 month ago
@mindthomas Sorry my bad....Did you made it alone, so that you program the whole project just by yourself, or there were hole crew involved? I mean team work.
deboxonline 2 weeks ago
@deboxonline Ahh ok. Well I made this project my own as a hobby project only - it was not requested by any company, nor were our team involved.
mindthomas 2 weeks ago
很好! 呵呵.....
omonkerman 2 months ago
why would you prefer to use up and down buttons to navigate instead of just tap the menu item?
ElPopularVale 2 months ago
@ElPopularVale Hehe, you wouldn't. Though I thought it looked nice to have both - and it also shows the button-rendering functionality.
mindthomas 2 months ago
Too fat!
aytacgulweb 8 months ago
hi. good project. i have this touch controller and deme board. but i cant use touch panel. can you help me about this issue?
wolkan26 8 months ago
@wolkan26 Hi.
Take a look at my blog-post about driving this touch-screen display. I have uploaded the source code for the project too, though it's a bit messy.
In the source code you will find the ads7843.c file, which is for reading the touch-screen.
blog.tkjelectronics.dk/2010/01/320x240-color-display-ili9919/
mindthomas 8 months ago
@mindthomas many thanks tomas. your projects are very usefull. i did it by your helping :)
wolkan26 8 months ago
Hello, can you help me? really need help, I have this lcd for a while and I could not use, tb pic 18f4550 program, but program in C, one can give me strength so I can use it? enm not found any material library for this LCD!
Please help me!!!!.
lucasawr 1 year ago
@lucasawr I've also got a library for this LCD in C - Microchip C18!
You have to download Microchip C18 and the MPLAB - you can get those free of charge, with a small limitation which means that you can't compress your code that much!
mindthomas 1 year ago
@mindthomas is possible to use in CCS compiller? i use CCS... ou can help me?
lucasawr 1 year ago
@lucasawr I don't think you will be able to use the CCS Compiler, as it is for Microchip PIC's as I know.
But again, I'm not 100% sure!
mindthomas 1 year ago
Hello, can you help me? really need help, I have this lcd for a while and I could not use, tb pic 18f4550 program, but program in C, one can give me strength so I can use it? enm not found any material library for this LCD!
Please help me!!!!
lucasawr 1 year ago
A couple of questions. Are you "manually" reading the touch screen or do you use a touch screen controller such as the ADS7843? If the latter I'd be interested in getting some more info from you about how you calibrate the screen. I'm currently playing around with a similar screen and I find I can't really get the precision I want out of it.
My display seems fairly accurate in the X-axis but the Y-axis differs depending on where you poke it. It's annoying :)
treborrrrr 1 year ago
@treborrrrr
Hi.
Yes I'm using the ADS7843 to read the touch screen value.
The calibration method I'm using is made using mathematical calculations and different vectors!
mindthomas 1 year ago
@mindthomas You wouldn't mind sharing a few snippets of code? I've found the following pdf from TI but quite frankly I've forgotten all that math during the last 15 years so I'm having a hard time understanding it. It also seems like some pretty heavy calculations (floats) to be doing on a micro. I figured there must be a more efficient way of doing it. The way I'm doing it now assumes that the Y-axis is perfectly consistent which sadly it is not.
focus.ti.com/lit/an/slyt277/slyt277.pdf
treborrrrr 1 year ago
@treborrrrr
The PDF you got there uses pretty much the same calculations I'm using.
But to show you guys how this is done, I will upload the comple source code for this project - including Display controller (and graphics/GUI commands), Touch controller, touch calibration and some menu system.
This will be uploaded to my blog later today...
mindthomas 1 year ago
@mindthomas Awesome. Sincere thanks.
treborrrrr 1 year ago
@treborrrrr
The code has been uploaded. Please check the mini computer project on my blog!
mindthomas 1 year ago
@mindthomas Sweet man. I just had a quick look and I can see I'll be spending many many hours trying to understand it all and porting to my PIC :D Really appreciate you sharing your work.
treborrrrr 1 year ago
nice
rockangel1967 1 year ago
Hehe, Nice.
You could also check ny blog: elec . tkjweb . dk (remove the spaces)
mindthomas 1 year ago
cool have one on order. using it control my electric three wheeler
jamesleetrigg 1 year ago