Getting touchy performance with your screen's touch screen? Resistive touchscreens are widely used with TFT and LCD displays. The only issue is they require a lot of analog pins and regular polling. If your microcontroller lacks analog inputs or you seek a more sophisticated controller, the TSC2046 provides a great solution.
This TSC2046 Breakout Board supplies an intuitive SPI interface, along with an interrupt pin which alerts a microcontroller or microcomputer upon touch detection. It supports 3 to 5 V power, making it secure to be used with 3V or 5V logic. With consistent and accurate readings, it is significantly faster than utilizing an Arduino for the same purpose.
For the screens that have 1mm pitch FPC cables, you can plug the cable right into the connector. The majority of medium/large touchscreens have that kind of connector. If you have another kind of touch screen, the four X/Y contacts are available on 0.1" pitch breakouts so you can hand-solder or wire them.
Getting started is super easy with our simple TSC2046 Arduino library. Plug any 1mm-pitch 4-wire resistive touchscreen to the on-board FPC connector, then use the library example to read touch points with X, Y and Z (pressure) results returned instantaneously. There's an IRQ pin that will drop low when a touch is detected, you can use that to reduce the SPI polling.
We also break out the Busy pin, that lets you know when the chip is still reading, and the Vref pin if you want to read or change the default 2.5V reference voltage. There's also two extra ADC pins you can read, Aux (0V - VRef) and VBat (0V - 2*VRef).
Technical Details
Product Dimensions: 29.5mm x 17.7mm x 4.4mm / 1.2" x 0.7" x 0.2"
Product Weight: 2.0g / 0.1oz
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