rasberry pi lcd

[manansh]

hey guys i am i beginner .i recently bought haoyu lcd for my pi http://www.hotmcu.com/320x240-32-tft-to ... l?cPath=36 where can i download the modified rasbian image for it.thanks

[hansotten]

On the sellers page a link is to a support page:

http://www.hotmcu.com/wiki/HY28B_-_2.8% ... spberry_Pi

There is shown an image for download (a very very old 2014 version alas).

[manansh]

hey thanks i tried that image it does not work any other way?

[AndyD]

This display should work with standard Raspbian. Your link says it is hardware and software compatible with HY28b. The HY28b TFT display is supported by Notro's TFT driver and there is a Device Tree overlay for the TFT. So, using a standard Raspbian image add the following to your config.txt file.

Code: Select all

dtoverlay=hy28b,rotate=270

Then reboot. If all goes well, the screen should start white when you power on, but darken when it is initialized by the driver.

Next, a simple way to see if the display is working is to send some random data to it.

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cat /dev/urandom > /dev/fb1

If your screen is working, then you should see random colours displayed.

Next, well that depends on what you want to do with the display ...

[manansh]

thanks andyd ,the screen works(white screen) but where to send the data (sorry if question is stupid complete beginner)

[AndyD]

thanks andyd ,the screen works(white screen) but where to send the data (sorry if question is stupid complete beginner)

A white screen doesn't mean the screen works. When you plug one of these TFT screens into the Raspberry Pi and power up, the screen will be white until it is initialized. If you follow the steps above, your screen should fill with random coloured dots. Then I would be confident that it is working.

I am not sure what you mean by "where to send the data".

Once you have the screen working, then let us know what you want to do with the screen. It really depends on your purpose.

[texy]

This is for the 2.8" version of the HY28B, but should work for your 3.2" - although I haven't tried it, give this a go :
viewtopic.php?f=45&t=105797#p729810

Texy