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RA8875 & 7'' tft LCD

Former Member

Hello i was wondering if its possible to use an RA8875 from adafruit.com to work with  a 7'' tft lcd i saw in digikeys.com . I was also wondering if there is any other potential sellers within the U.S that sells these 7'' LCD TFT that would work with the RA8875. The links are provided below of the research i have done. I have done intense research but all these screen are foreign and can only be bought over sea's.

 

 

-RA8875 (adafruit)

 

https://www.adafruit.com/product/1590

 

-7'' lcd tft

 

http://www.digikey.com/product-search/en?mpart=NHD-7.0-800480WF-CTXI%23&vendor=757

 

 

I'm currently building a project with the arduino uno and i would love to get it going.

my major concern is if the pins of the screen (7'' lcd) and the pins of the graphics module (RA8875) will match up and work together correctly.

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  • 0 in reply to shabaz

    Thanks for your feedback that helps a lot ! i just wanted to see what were the odds of making it possible to run an arduino uno with a 7'' lcd. I did come across a video on youtube.com that brought my hopes up. I will provide the link and would love to know your opinion about it.

     

    - wavevshare 7'' lcd tft (c)

    http://www.wvshare.com/product/7inch-Capacitive-Touch-LCD-C.htm

     

    - Youtube video

    https://www.youtube.com/watch?v=o0wxfSXv2uM

     

    my only fear is not being able to find any support, it does have the RA8875 built inside of the lcd. I wouldn't know how to run the LCD with the right libraries.

  • 0 in reply to Former Member

    Generally if it is sold by adafruit then there should be support.

    Whether you can use it effectively with an Uno is really down to your programming skill and what you want to do with it.

    I'd suggest that running a 7" display with an Uno is under-using the display, since the Uno doesn't have a lot of memory for images etc.

    You could use SD card storage, but it is still a workaround at best.

    Simple text or repeated images or blocks would be fine.

  • 0 in reply to shabaz

    You are totally right about that and i am very aware about it. I really didn't want to get really in depth with my experiment because i thought it was a simple fix, but throughout all the research that i have done i couldn't get a concrete answer and i am very happy that you have shared your knowledge with me.

    To be thorough, my main goal was to create  an experiment with the Arduino Uno

     

    Consisting of :

     

    - Arduino Uno

    - Button (1)

    - SD card

    - RA8875 (graphics module for LCD)

    - 7'' LCD

    - MP3 chip

    - Speaker

    - Amplifier (for the speaker)

    - Batteries

     

    now the main goal was to be able to get the Arduino Uno, MP3 chip, and LCD working together so that it can achieve an output to the users needs.

     

    to be more specific:

     

    - users sees the image displayed in the LCD (different images will rotate)

    - user pushes button (according to the image of his preference)

    - sound will relate to the image (output through the speakers)

    - SD card will store mp3 files and images

     

    it will be a mission to be able to get this going but i don't expect anyone to hand me the solutions of how to do it, if not guide me how to solve it with simple questions. i would love to get something like this going, i just hope my project does get to work all together and opinions and ideas are more than welcome. i did gather a mateiral list and all the components that will be used with documentations and sorts. i only happen to stumble upon the LCD

     

    thank you very much for your concern  ^_^

  • 0 in reply to Former Member

    This is all totally feasible with your list of items. Probably others have done projects with similar bits (although maybe not all together) so I think you'll easily find the information you need to progress.

    Another option (but don't want to distract you, since this is feasible with the Arduino too - just showing you another option that may be better or worse depending on your requirements) is to use a Linux board like a Raspberry Pi. It will consume more power, but will provide MP3 decode built-in, and the capability to display images from any format (JPG etc) onto a display. There are some SPI interfacing displays available for the RPI.

  • 0 in reply to shabaz

    I have had my concerns, and have thought about the approach of the raspberry pi. Yet, i have gone so far towards this approach and would like to stick to this approach because of its complexity. Now i do have a concern about libraries. The adafruit RA8875 has its library on the adafruit webpage, my other concern was if the library provided in adafruit webpage would work with an lcd sold on wvshare.com 7'' tft lcd (c) that offers that same driver (RA8875). i think i might just buy that one over sea's if it does work. thanks ^_^