by Michael McRoberts

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Project 34 – Touch Screen Keypad

You’ll now place a user interface underneath the touch screen in the form of a printed keypad and determine from the touch locations which key has been pressed. Once you understand the basics of doing this, you can go on to replace the printed keypad with one displayed on an LCD or OLED display.

You will output the key pressed on an LCD display so you’ll need to add one to the parts list for this project.

Parts Required

You’ll be using the exact same parts and circuit as in Project 33 with the addition of a 16×2 LCD display.

Nintendo DS touch screen images
Touch screen breakout
16×2 LCD Display

The other difference ...

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