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alidaf / raspberryPi

Raspberry Pi specific projects.
GNU General Public License v2.0
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Query #3

Closed Soulace1970 closed 6 years ago

Soulace1970 commented 6 years ago

Hi Darren - I have PCH-C200 which I would like to install a Pi 3. How did you get on with this project?

Regards, Alex Australia

alidaf commented 6 years ago

Not very well I'm afraid. I completely destroyed the display trying to unsolder all of the pins.

Soulace1970 commented 6 years ago

Can the manufacturer be contacted for a bare bones display?

Soulace1970 commented 6 years ago

Was it something like this? http://www.buydisplay.com/default/3-3-inch-display-192x64-19264-lcd-monochrome-module-white-on-blue

alidaf commented 6 years ago

It is the same model. The C200 has a bigger board that the display solders onto but I've since thrown all the bits away, including the case. From what I remember, the interface is very similar to the HD44780 but with graphics. I don't think it would be too difficult to program but the hard part is providing the API primitives to do things like draw shapes and text. The driver itself, which is what I started to write would have provided the very basic hardware functions and not a graphical API. I started on an SSD1322, which is a smaller OLED board for another project and fell down at that hurdle and I moved onto some Arduino projects. I'm pretty sure that there is a generic driver for LCD displays that may work. I can't remember what it was but have a look at this https://lcd4linux.bulix.org/ I wish I'd kept hold of everything now. I should probably remove all the incomplete code too.

Soulace1970 commented 6 years ago

Hi Darren, Thanks for that. Pity you threw that such good looking case away! Oh well perhaps another one may turn up somehwere!

Soulace1970 commented 6 years ago

Do you have any idea what to do with the front fascia controls next to the LCD?

alidaf commented 6 years ago

When I first started I used this site to determine what the different components were...https://hardwarebug.org/2015/02/26/popcorn-hour-revisited/ You may find it useful. It looks like J1 is where the buttons are passed through. The site has a list of what the pins relate to but I think the buttons are processed by an unmarked microcontroller on the board.

alidaf commented 6 years ago

I'm closing this issue. Open it again if you need anything else.