shusain93
Posts: 17
Joined: Sun Oct 16, 2011 12:48 am

Use Arduino TFT Display for the Raspberry Pi?

Sat Sep 21, 2013 5:12 pm

So I have one of this: http://www.seeedstudio.com/depot/28-tft ... p-864.html
I wanted to use it with my Pi, so I first tried using my Arduino as a middleman to control the display. I couldn't convert strings to ints and strings to u_int16s and so on. So the middleman idea died. Now as a LAST resort I am asking the community for help on how to run the shield off of my Pi.

Any help :?:

wouterel
Posts: 52
Joined: Thu Feb 14, 2013 3:09 pm

Re: Use Arduino TFT Display for the Raspberry Pi?

Sat Sep 21, 2013 5:47 pm

It looks like seeedstudio now has a new version of that shield (v2 which is black as opposed to the one you linked to which is the red first version).

If it is really the red one you have, you've got yourself a tough problem: its driver chip (ST7781R) is not (yet) supported by notro's tft drivers (https://github.com/notro/fbtft/), and even if it were, you'd need a lot of GPIO pins (12 if I'm not mistaken) because this module uses a parallel interface. Nothing impossible as far as I can see, but you'd need to write a driver or ask notro to do that and you'd pretty much be using all of your GPIO pins for it. I have no idea how efficient the end result would be.

The v2 has an SPI interface which is what most supported TFT modules have, and uses the ili9341 chip which is supported by notro's drivers.

shusain93
Posts: 17
Joined: Sun Oct 16, 2011 12:48 am

Re: Use Arduino TFT Display for the Raspberry Pi?

Sat Sep 21, 2013 7:43 pm

Unfortunately, I do have the red one. I'm considering going to the arduino forums for help with the middle man idea

texy
Forum Moderator
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Posts: 5157
Joined: Sat Mar 03, 2012 10:59 am
Location: Berkshire, England

Re: Use Arduino TFT Display for the Raspberry Pi?

Thu Sep 26, 2013 6:24 am

Hi,
the HY28A-LCDB 2.8" TFT display is much better suited to the Pi as it uses SPI instead of a parallel port for both the display and the touch panel.
However parallel port displays can be used with either serial to parallel converter circuitry or the use of a CPLD. Adds complexity, but still useable.
Texy
Various male/female 40- and 26-way GPIO header for sale here ( IDEAL FOR YOUR PiZero ):
https://www.raspberrypi.org/forums/viewtopic.php?f=93&t=147682#p971555

claudiu
Posts: 3
Joined: Wed Dec 25, 2013 7:10 am

Re: Use Arduino TFT Display for the Raspberry Pi?

Wed Dec 25, 2013 7:14 am

Hi all,

First of all, sorry for reviving this thread. I just bought the same shield with the intention to use it with an Arduino. However, right now, I need to use it with my RaspberryPi for about a week and have no idea how to wire it. I'm ok with having no touch capabilities, I just need a tiny display for my Pi.

Reading the suggestions it seems doable but I have no idea how to wire it up. Any ideas?

Romay
Posts: 16
Joined: Thu Apr 10, 2014 3:42 pm

Re: Use Arduino TFT Display for the Raspberry Pi?

Sat Apr 19, 2014 2:25 am

Hello,

I picked this up also, and would like to do the same. I found this: https://github.com/notro/fbtft/issues/59
I did install the FBTFT using: sudo REPO_URI=https://github.com/notro/rpi-firmware BRANCH=builtin rpi-update
but upon running the following (only pasted partial here for space) : sudo modprobe flexfb regwidth=16 width=240 height=320
I get the following error: command not found

Any help will be greatly appreciated.
Thank You,
Romay

MohitBagur
Posts: 18
Joined: Wed May 27, 2015 5:47 am
Location: Bangalore,Karnataka,India

Re: Use Arduino TFT Display for the Raspberry Pi?

Tue Dec 15, 2015 3:10 pm

Hello folks,
http://www.ebay.in/itm/2-4-TFT-LCD-Shie ... Swf-VWWI5Q
Will this work with my Raspberry Pi 2 running Raspbian Jessie?
:D :D :D
Help is greatly appreciated.
Mohit Bagur

mhsjlw
Posts: 1
Joined: Sun Oct 30, 2016 9:22 pm

Re: Use Arduino TFT Display for the Raspberry Pi?

Sun Oct 30, 2016 9:34 pm

I have the model v2.1 TFT screen for the Arduino UNO, but I'd like to use it for the Raspberry Pi 2 Model B. Can anyone point me in the right direction?


EdenApple
Posts: 1
Joined: Tue Mar 19, 2019 6:21 pm

Re: Use Arduino TFT Display for the Raspberry Pi?

Tue Mar 19, 2019 6:38 pm

Hi, may I know is there a way to use Arduino LCD with RPi via its GPIO? I have done some searching that some LCD can use RPi SPI mode, but I couldn’t find any schematic for this model. Thx.

ILI9481 3.5 LCD

http://www.raspberrypiwiki.com/index.ph ... een_Module

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