KX122-1037-EVB0A0

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Evaluation boards are an essential tool for evaluating, prototyping, and debugging integrated circuits. Sensors are the devices that enable people to make a measure of an external physical phenomenon such as force, pressure, temperature, and humidity. The KX122-1037-EVB0A0 is a pressure, acceleration, and tilt sensor evaluation board with a 3-axis digital output for embedded applications. It is ideal for measuring human posture and activity monitoring, as well as gaming and robotics applications.

The KX122-1037-EVB0A0 application field includes “human posture/activity monitoring, gaming, robotic applications, automotive safety, consumer health, augmented/virtual reality, navigation applications, and industrial process control” according to the documentation provided on its website.¹ That means it is suitable for a variety of research, prototyping, and development activities related to these applications.

In terms of the working principle of the KX122-1037-EVB0A0, it has a combination of linear capacitive, piezoresistive, and pure-signal accelerometers. The linear capacitive accelerometers have a very low power consumption, and feature high accuracy, wide dynamic range, and good temperature stability. They are capable of measuring acceleration along three orthogonal axes and provide digitized X, Y, and Z outputs. The piezoresistive accelerometers are low power and have high noise and vibration sensitivity. They measure both static acceleration (gravity) and dynamic acceleration (acceleration of motion). The pure-signal accelerometers use a MEMS process to directly measure acceleration using capacitive sensing.

The KX122-1037-EVB0A0 evaluation board is controlled by an STMicroelectronics STM32L151 MCU. This low power ARM® Cortex™ M3 processor from STMicroelectronics provides a low cost, low power solution for system designs. It features 512KB of Flash memory, 64KB SRAM, and up to 32KB of EEPROM. The board also includes a serial USB interface for program and data transfer. This enables the user to view the analog and digital values directly from the device. A 3.3V voltage regulator is also included on the board, and it is compatible with 5V power supplies.

The KX122-1037-EVB0A0 pressure, acceleration, and tilt sensor evaluation board is an ideal tool to evaluate the performance of a range of applications. It is specifically designed to be user-friendly and suitable for a wide range of development activities.

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