NAU8401EVB

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Evaluation and Demonstration Boards and Kits: NAU8401EVB

The NAU8401EVB is an evaluation and demonstration board, designed to evaluate the features of the NAU8401, a Nuvoton EMS22A Micro-Motion Sensor. The board contains multiple components, including a NAU8401 EMS22A terminal motion sensor, voltage reference, port expander, two LEDs, and USB connection. It provides a plug-and-play platform for users to demonstrate and evaluate the features of the NAU8401 and play with the various example codes for the board.

The NAU8401EVB is intended for a wide range of applications. The board has the capability of detecting pre-defined motion patterns, as well as responding to certain detected motions. For instance, the board can be used in security systems to detect motion and trigger an alarm. Additionally, the board can be used for gaming applications such as wave gesture recognition. Aside from these, the board can also be used for a variety of other uses such as human-machine interactions.

Working Principle

The NAU8401 relies on its integrated analog and digital circuit to detect motion and trigger various reactions. The board utilizes a two-channel terminal motion sensor, composed of two non-contacting events. When one of the timer channels triggers motion, the NAU8401 then initiates the defined action.

In general, the most important components of the NAU8401 are the integrated 8-bit MicroController units (MCU), which allow the user to develop custom applications and define custom functions for the board. The board is also equipped with analog-to-digital converters (ADC) and digital-to-analog converters (DAC), which facilitate the transmission of digital signals. Additionally, the board also contains a port expander, which enables multiple devices to be connected to the board at once.

Alongside these components, the NAU8401 uses several external devices to operate. While the board is in operation, the board will connect to an external power source. Additionally, the board is also connected to other devices such as a voltage reference, USB connection, and PC.The board also contains two LEDs, whose purpose is to indicate when the board is working correctly.

The NAU8401 can be operated through a linear or non-linear motion profile. In a non-linear profile, the user can define different motion intensities, so that the board can respond to different types of motions. For instance, if the user desires to detect a specific motion, they can define a non-linear motion profile, so that the board will detect motion that meets or exceeds the given scenario. As for a linear motion profile, it is slightly more simplistic. In this case, the user only has to define a motionless state, and typical motions such as moving left, right, up, and down.

Conclusion

The NAU8401EVB is an extremely versatile evaluation and demonstration board. It provides users with a high degree of customization, allowing them to define custom functions and applications for the board. Additionally, the board is capable of detecting various types of motion and responding accordingly. With these features, the board is suitable for a wide range of applications, from security systems to gaming applications.

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