STEVAL-MKI083V1

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Evaluation boards are an essential component to almost any technology application today. They allow for the easy design of a system without having to worry about the complexities of circuit design - they provide a simple and straightforward method of testing out a device. The STEVAL-MKI083v1 evaluation board is specifically designed to showcase the capabilities of STMicroelectronics’s 3-axis digital accelerometer and magnetometer line. This family of inertial sensors has a wide array of potential applications, from gaming and VR to energy efficiency. In order to determine the different operating modes of the sensors, understanding the working principle of the STEVAL-MKI083v1 is necessary.

The STEVAL-MKI083v1 is an evaluation board for the 3-axis accelerometer and magnetometer device family. It consists of an onboard STM32L1 Series microcontroller, a LIS331DLHH-2 altivec 3-axis accelerometer connected via I2C, and an LSM303DLH-2 altivec 3-axis magnetometer connected through the same I2C bus. The evaluation board is powered by a low power supply, given the onboard STM32L1 Series microcontroller and the low power consumption of the connected devices. The evaluation board includes a host USB connection, allowing for the connection of an USB connection device and the debugging of the evaluation board through the online environment STM32 Workbench.

An understanding of the working principle of the evaluation board is critical in order to use it within any application. At its heart, the STEVAL-MKI083v1 evaluation board is designed to measure the acceleration and magnetic field of a given environment. The onboard STM32L1 Series microcontroller takes on the role of the master controller, receiving the data from the accelerometer and magnetometer and controlling the sensor modes. The output ports for the device can then output the signals in either digital or analog format depending on the needed application.The user can also program the microcontroller to change the sensor’s operating mode and configure the level of sensitivity of the device.

The evaluation board is also designed to conduct various tests in order to confirm the suitability of the board. These tests include the Acceleration Test, the Magnetic Field Test, and the Bias Calibration Test. In the Acceleration Test, the evaluation board can measure the linear acceleration experienced in the X, Y, and Z axis and then output the necessary data. The Magnetic Field Test follows a similar approach to the Acceleration Test, measuring the components of the vector for a magnetic field, and the Bias Calibration Test is used to confirm the suitability of the sensors for any given application.

The STEVAL-MKI083v1 evaluation board is a powerful tool for any engineer looking to create a 3-axis accelerometer and magnetometer system. With its onboard STM32L1 Series microcontroller, it supports both analog and digital output, allowing for integration into any application. Additionally, the device is designed to work in both environment and laboratory settings, conducting necessary tests in order to guarantee its suitability for any given application. The flexible control of the sensors and its connection scheme make it an ideal tool for any engineer looking to create applications today.

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