Inclinometer Click Board™

Product Code: MIKROE-4753

How Does The Inclinometer Click Board™ Work? The Inclinometer Click Board™ as its foundation uses the SCL3300, a high-performance best-in-class inclinometer sensor component from Murata. The SCL3300 includes an acceleration sensing element that consists of four acceleration-sensitive masses and an Application-Specific Integrated Circuit (ASIC). The sensing elements are manufactured using the Murata proprietary High Aspect Ratio (HAR) 3D-MEMS process, making extraordinarily stable and low noise capacitive sensors. Acceleration causes capacitance change that is converted into a voltage change in the signal conditioning ASIC. The SCL3300 has extremely stable output over a wide range of temperatures and vibrations. Inclination measurement of SCL3300 is based on the angle measurements between the component and the gravity vector in a static environment. Note that no other accelerations should be present to measure angles correctly. The SCL3300 has four user-selectable measurement modes for sensor performance optimization for different applications and their requirements.

Suppose the whole 360° operation is needed. In that case, the user should select either Mode 1 or Mode 2, where the limitations regarding the maximum inclination angle don't exist (inclination ranges are limited in Mode 3 and Mode 4 to maximum ±10° inclination). The SCL3300 communicates with MCU using the standard SPI serial interface with a maximum frequency of 4MHz, and a proper logic voltage level conversion performed by the appropriate voltage level translator. The VIO logic level provides a needed reference voltage for one side of the TXB0106, a 6-bit bidirectional level shifting, and a voltage translator with automatic direction sensing from Texas Instruments. On another side of the level shifter, the reference voltage is taken from the 3.3V mikroBUS™ power rail. The Inclinometer Click board™ can operate with both 3.3V and 5V logic voltage levels selected via the VIO SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the SPI communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development. Specifications Type Motion Applications Can be used for applications demanding high stability with demanding environmental requirements such as tilt sensing, machine control, inertial measurement units, positioning and guidance systems, and many more On-board modules SCL3300 - high-performance best-in-class inclinometer sensor component from Murata Key Features Low power consumption, 3-axis inclinometer, selectable measurement modes, ultra-low noise density, excellent offset stability, high accuracy, and more Interface SPI Compatibility mikroBUS Click board size S (28.6 x 25.4 mm) Input Voltage 3.3V or 5V Pinout diagram This table shows how the pinout on Inclinometer Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes NC 1 AN PWM 16 NC NC 2 RST INT 15 NC SPI Chip Select CS 3 CS RX 14 NC SPI Clock SCK 4 SCK TX 13 NC SPI Data OUT SDO 5 MISO SCL 12 NC SPI Data IN SDI 6 MOSI SDA 11 NC Power Supply 3.3V 7 3.3V 5V 10 5V Power Supply Ground GND 8 GND GND 9 GND Ground Onboard settings and indicators Label Name Default Description LD1 PWR - Power LED Indicator JP1 VCC SEL Left Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V Inclinometer Click electrical specific