There is a variety of touchpad/touchscreen technologies with different methods of sensing touch and today we are going to present you with one of them that is especially cool - capacitive sensing.
Capacitive sensing is a technology that can detect and measure anything that is conductive or has a dielectric different from air. You can employ this technology in many different applications including light switches, office equipment and toys, display and keypad backlight activation, and you can do it with ease if you use our Cap Extend 3 click.
Cap Extend 3 click
With Cap Extend 3 click you can add not one but four capacitive sensor pads to your design. These sensor pads can sense touch through a variety of different materials - plastic, wood, or even metal, thanks to the proprietary Metal over Capacitive technology.
All these materials can be used to protect the surface of the PCB and sensor pad traces, allowing implementation of all kinds of human-machine interfaces and seamless integration of the touch-sensitive buttons into various kinds of front panels.
The click also features a connector used for connecting to external sensors.
Features like multi-stage active noise suppression filtering, automatic environmental compensation, high signal-to-noise ratio (SNR) and support for a wide range of sensor pad shapes and sizes, allow this device to be used as a reliable replacement for buttons or switches in many applications where a reliable and aesthetically pleasing alternative for a traditional button or switch is required.
For more information about Cap Extend 3 click, visit the product page.
Yours sincerely,
MikroElektronika