Some of you may have seen these modules on Ebay, Wish and Aliexpress. On the surface they seem a really good way to get a full colour GUI with touch on something fairly low powere. These will work with a low end PIC or Atmega but I’m working with a Arduino Mega and STM32 here.
An example can be found here (as long as the link is live) and i looks like this :
SO on paper this looks like a good bet, it works over I2C, you have a designer application for it, its full colour, a good resolution and in theory all you have to do is update content and process events. Perfect for what I need to do. It even comes with a datasheet, programming cable, examples and software…
Well, thats sort of true, you get the display, a cable for programming (CH340 USB dongle) a cable for connecting it and that is it. There isnt even any demo code loaded so powering it up will get nothing. The vendor didnt reply to requests for help so off to the net I went. and found that this is a common issue. The manufacturer is Hunda Tech and if you pop over to here you can find an almost useless datasheet for it and right at the bottom there is some Arduino examples. There is no sign of the Visual LCD Studio that you need to actually edit the stored displays. You can find this in this archive here, this includes the software, examples, english datasheets and much better documentation. You should be able to get started with this archive.
BUT…
The application is buggy and complete garbage. It really is a prime example of fire and forget software. Save often, do not leave it open (It leaks memory) and expect it to crash with no warning or hope of recovery if you haven’t saved. Many controls do not behave as expected and as for the help… One of the biggest bugbears is auto control numbering, it has a ‘fencepost’ error and will cause compile errors
Good morning, I have bought the same monitor and I am facing the following problem, while it works fine with visual studio, i.e. I add my own graphics without a problem, there is no communication with the Arduino. i.e. if I make some files with visual studio and upload them to the screen if I go to put his own demo it does not show it you have reached somewhere you I am relatively new to programming .. thanks in advance christos christodoulou
Se stai usando arduino nano i collegamenti dello schema sono sbagliati, bisogna invertire A4 con A5 e funziona perfettamente.
>If you are using Arduino nano the connections in the diagram are wrong, you have to swap A4 with A5 and it works perfectly.
Thank you!
Great info!! Thanks for your help!!
olf20 / Bob
You are welcome!
I have recently purchased a H50B-IC TFT LCE display and read all the coments posted here. I plan to uses an Arduino Mega to display sensor reading from a project I am trying to develop. I, like others have not been able to get it program. I would be very interested in any help to get it to work. I hope someone could send me the needed info. Thanks, Lowell
Did you ever get code and wiring to use with a mega?
I have a project I would like to try with a mega and a display.
I was using a mega for this. I need to try this with an STM32 shortly though so I’ll revisit it.