USB controller for Color 24-Bit LCD 4.3" PSP Touch Scre

Archive SparkFun Site Questions/Comments
1

Hello,

I have seen on your site web the description of the Color 24-Bit LCD 4.3" PSP Touch Screen and I would like to know if you also sell suitable usb controller for this screen (such as the one described here http://shop-on-line.tvielectronics.com/ … ucts_id=69

if not, can you please recommend me one.

Thank you.

2

Hi,

We do not stock a controller that will interface a touchscreen to USB. We do not know of any supplier that carries one.

I can tell you how to build one, but I don’t know of one that you can buy that will work for sure.

Cheers,

–David Carne

3

Hi,

Thank you for your quick answer.

Anyway, can you explain to me how to build one ?

Thank you.

4

FT232RL → ATMEGA* → [optionally] TSC2046

Use the FT232Rl for USB->serial, the atmega to do the serial->spi bit, and the TSC2046 for the touchscreen. You could optionally omit the TSC2046, and use onboard drive/ADC lines on the atmega, but the TSC ADC has a few more bits than the Atmega ADC.

This won’t be a very easy build unless you’re familiar with microcontrollers / smd electronics.

Cheers,

–David Carne

5

Thanks a lot for your help.

It seems that I am not familiar enough, given the fact that I barely understood your language !!!

I will have to ask other questions to my friend google !!!

Thank you again.

Bye

6

Hello again,

I have another question. That might be no sense but, I would like to know if it is possible to interface the touch screen with the analog stick of a psp. (it looks like a 4-wire as you can see here :

http://www.createzit.com/images/stories … logpsp.jpg)

Thank you.

Cheers

7

ph0ton:
Hello again,

I have another question. That might be no sense but, I would like to know if it is possible to interface the touch screen with the analog stick of a psp. (it looks like a 4-wire as you can see here :

http://www.createzit.com/images/stories … logpsp.jpg)

Thank you.

Cheers

So is the idea to make people touch the touchscreen if you press a button on the gamepad? Or is it to make people press the gamepad buttons if you touch the touchscreen? You might be better off taping a piece of fried chicken to the touchscreen.

8

I think hes asking if you can use the touchscreen in replacement of the analog stick… Like the center of the screen is the analog stick is centered… and when you move your finger to the left its like moving the analog stick to the left? I might not of understood it though… But yes, its possible with a lil micro to read the touchscreen and then output to the analog stick’s pins.

9

Isn’t it much easier to give a try to the [touchscreen USB controller instead of reinventing the wheel? :)](http://shop-on-line.tvielectronics.com/product_info.php?products_id=69)

10

I’m confused on something, what did u mean by:

This touch screen is not intended to be hacked into an off-the-shelf Play Station Portable. It is solely meant to be a nice add-on to our 24-Bit color display.

i have an app in the browser called ipsp, can i use the touch screen for that? and can i just install the touch screen and thats it? do i need software?