STEVAL-MKI178V1

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The STEVAL-MKI178V1 from STMicroelectronics is a one axis digital output inclinometer module which combines an advanced a light MEMS-based tilt sensor with a phono jack connector. It uses a single-axis tilting platform with one integrated MEMS angular rate sensor, a signal conditioning circuit, and analog and digital outputs to measure angular tilt.

The STEVAL-MKI178V1 includes two independently adjustable thresholds. One is used for detection of orientation changes while the other is used for detection of tilt changes. It also includes a built-in voltage regulator, self-test input and output pin and an onboard chip select pin.

STEVAL-MKI178V1 includes two operating ranges: ±20˚ and ±45˚. These ranges select the geometry of the single axis tilt sensing plane and the range of the outputs. It also features a nominal working voltage from 4.6 to 5.25V, a maximum power consumption of 2.0mA and a temperature range of -5 to +85°C.

The main application field of STEVAL-MKI178V1 is in safety and security systems, such as consumer appliances, machine monitoring applications, vehicle tilt sensing and emergency stop systems due to its robustness and accuracy. Also it can be used in HVAC tilt sensing, robotic arm tilt sensing and mobile device orientation sensing applications.

The STEVAL-MKI178V1 provides analog output with a passive resistive pull-up voltage divider network. It also provides a digital output with an on-chip logic level translator. The analog outputs of the device can provide the two thresholds of tilt angle simultaneously.

The working principle of STEVAL-MKI178V1 is based on MEMS technology. MEMS (micro-electro-mechanical systems) allows for extremely small and low-power devices, that can carry out a variety of tasks. Inclinometers use this technology to measure tilt. The device includes a MEMS angular rate sensor that detects the tilt in a particular direction. The signal is then conditioned and outputted as a digital or analog signal, which can be used to measure and measure the tilt angle.

The STEVAL-MKI178V1 is a low-power, highly integrated solutions, and it is adjustable, making it suitable for a variety of applications. Due to its robustness and accuracy, it is an excellent choice for safety and security systems, HVAC tilt sensing, robotic arm tilt sensing and mobile device orientation sensing applications.

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