Aito is building its products and solutions based on software enhanced piezo technology, SEP. This breakthrough in piezoelectric sensing technology, utilizes the best properties of piezoelectricity in combination with highly advanced control software to create a new touch technology.

SEP technology has solved the challenges of both piezo sensing and haptic technologies: reliability when operating at high temperatures; integration complexity and the stability of piezo components; sensitivity and duration control of signals for the touch, localization and intensity of haptic feedback and their energy efficiency; and finally the millisecond response times needed for processing touch input and feedback signals. By achieving this, SEP touch switches provide a quality user experience with a high level of functionality. All the SEP touch product families include a visual and audible feedback capability and standard communication interfaces. (See more on products page).
SEP technology also comes with a benefit that is uncommon in the adoption of new technologies, namely that all the parts needed are standard off-the-shelf components, available from two or more sources. Even the core itself, the AitoChip is available from two major micro-controller manufacturers. (See more on products page).

The base of SEP touch is piezoelectricity. Piezoelectric materials convert mechanical stress (pressure) into electrical energy and vice versa. SEP technology utilizes the most cost efficient and robust format of piezo component, the single layer disc. Bidirectional conversion between stress and electricity enables the use of one single component for both the configurable sensor (AitoTouch products) and actuator (AitoHapticTouch products). Beyond this, piezoelectricity is utilized to wake up the whole user interface (AitoTouchLE products) to achieve maximal energy efficiency in Low Energy user interfaces.

SEP touch is able to detect touch through any kind of surface material and correctly assembled piezo discs, in an optimized mechanical stack that adds just 0.3mm in thickness to a standard printed circuit board (PCB), offer extreme robustness against ageing and environmental effects.


SEP technology provides compelling robustness and reliability over both capacitive and optical sensing technologies as well as over mechanical keys, of which membrane keys are the most common.

The switch can be triggerd through virtually any overlay, in any environmental conditions (moisture, dirt), or in an electrically noisy environment.

Further, SEP functionality is maintained over a wide temperature range with automated temperature compensation for both mechanical and electrical effects. Alternative technologies, including traditional piezo sensing technologies and inductive sensing, needs to be carefully designed and optimized for each touch switch product design, resulting in significantly higher cost or compromised sensitivity and energy efficiency.

This means that with SEP touch there is no need to optimize the user interface module for each product separately, the same module can be used in multiple applications and environments, lowering the cost of the technology and the development time of end products.

The high level of control and configurability of all key parameters for touch sensing makes SEP the most scalable technology across different products, which also contributes to short product development cycles.

With its wide sensitivity range and integrated haptic, audio and visual feedback capability, SEP technology allows touch keys to be introduced to new product areas, improving the usability of touch switches and the overall user experience to previously unimagined levels.

SEP Touch Other Piezo Capacitive Inductive Mechanical Optical
High Sensitive Touch
Power Consumption
All Materials Possible
Senses Touch Force
Haptic/Audio Feedback
Designable User Interface