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Virtual Keypad Application

Touch Keypad Demo

We wanted to expand on the original touch panel and graphics to illustrate the use of these technologies as a virtual keypad. The software does requires calibration, so it is useful to work the starting demo ( see graphic touch screen demo) to capture what the unique X and Y values that are associated with the virtual keypad . These numbers will be a function of based how you are depressing and interacting with the touch panel.In this demo we created a 9 key numerical touch pad and used a pencil with easer end to activate and “depress” keys. The decoded key result is displayed on the Experimenter LCD display. See photos. We are using the EADOG128W-6 Display with an Amber back light EA LED55x46-A.

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Download Touch keypad Demo Software

Schematic is shown.

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