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Accelerometers

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ADXL345 3-axis I2C/SPI digital accelerator - module

Sensor for measuring acceleration in three axes in the range +/- 16 g. The module is powered with the voltage from 3 to 5 V, it has the voltage regulator and is communicating...
Index: MOD-01912
Index: MOD-01912
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Regular price €3.90 Price €3.90

MPU-6050 3-axis accelerometer and I2C gyroscope - DFRobot module

Sensor for measuring acceleration and angular velocity in three axes. It is a combination of 3-axis accelerometer and gyroscope. It is characterized by simple operation, it...
Index: DFR-03888
Index: DFR-03888
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Regular price €15.90 Price €15.90

Grove - 3-acces accelerometer MMA7660FC - I2C - Seeedstudio 101020039

Module with 3-axis accelerometer, based on MMA7660FC chip . Allows measurement of 3-axis acceleration within ± 1. 5 g. The module communicates through the I2C interface,...
Index: SEE-15579
Index: SEE-15579
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Regular price €9.50 Price €9.50
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DFRobot Gravity - tilt sensor

A simple tilt sensor with digital output. It is powered with the voltage from 3.3 V to 5 V, it works with Arduino modules.
Index: DFR-04279
Index: DFR-04279
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Regular price €2.50 Price €2.50

Tilt / shock sensor - Iduino SE059

The tilt sensor detects changes in position. It can work as a shock sensor. The m odule for communication uses the digital output . It w orks with voltage of 5 V.
Index: OST-14325
Index: OST-14325
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Regular price €1.50 Price €1.50

LSM6DSO - 3-axis accelerometer and I2C/I3C/SPI gyroscope - Pololu 2798

The LSMDDSO sensor from Pololu is the successor to the older LSM6DS33 module and is a combination of a 3-axis accelerometer and a gyroscope. It allows you to measure 6...
Index: PLL-22026
Index: PLL-22026
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Regular price €25.50 Price €25.50

BMA220 3-axis I2C digital accelerator - DFRobot module

Sensor for measuring acceleration in three axes in the range: ± 2 g, ±4 g, ±8 g / ±16 g. Powered with the voltage of 2.0 V to 3.6 V, it is characterized by small size, low...
Index: DFR-02987
Index: DFR-02987
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Regular price €5.50 Price €5.50

Grove - Collision Sensor - collision and vibration sensor

Collision sensor from Grove. It detect collision and vibration. It has an additional external circuit, to reduce the effect of ambient noise. The module is supplied with the...
Index: SEE-11300
Index: SEE-11300
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Regular price €10.90 Price €8.18
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Grove - MMA7660FC 3-axis digital accelerometer I2C

Module with 3-axis accelerometer based on MMA7660FC chip with digital I2C output and Grove connector. The MEMS sensor has a low power consumption and low profile. The module...
Index: SEE-15444
Index: SEE-15444
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Regular price €11.50 Price €11.50

Gravity - 9DOF sensor BMX160 + temperature and pressure sensor BMP388 - I2C- DFRobot SEN0252

The module is equipped with two BMX160 and BMP388 sensors. BMX160 is a 9-axis sensor which allows to measure the acceleration in the ranges ± 2 g / ± 4 g / ± 8 g / ± 16 g...
Index: DFR-15712
Index: DFR-15712
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Regular price €23.90 Price €23.90

SparkFun 6 DoF IMU - ISM330DHCX - 3-axis accelerometer and gyroscope - SparkFun SEN-19764

The board is equipped with the ISM330DHCX system containing a 3-axis accelerometer and a 3-axis gyroscope. The module allows you to measure linear acceleration in the range of...
Index: SPF-21821
Index: SPF-21821
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Regular price €43.50 Price €43.50

9DoF IMU Breakout - ISM330DHCX, MMC5983MA - Qwiic - SparkFun SEN-19895

SparkFun Qwiic 9DoF IMU Breakout sensor combines a high-performance digital ISM330DHCX accelerometer, a gyroscope and a highly sensitive three-axis magnetometer MMC5983MA ....
Index: SPF-21961
Index: SPF-21961
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Regular price €60.90 Price €60.90

Accelerometers - the direct measurement of linear acceleration

3-axis accelerometers measure linear acceleration in three axes (X, Y, Z). A uniaxial accelerometer allows you to measure acceleration in any indicated direction. This is used in missiles, homing missiles, trains, and other applications where the object moves in one specific direction. By knowing the acceleration, velocity and time, the measurement system can calculate the distance travelled by the object. Due to the nature of the influence of the Earth's gravitational field, the acceleration of the earth is constant but also measurable by accelerometers - this will be noticeable when you place the accelerometer with the housing perpendicular to the ground of the Earth, and the acceleration will then be measured only in one axis (e.g. Z, for the X-axis and Y will be zero), while when the accelerometer is deflected by an angle different than 90 �, the measured acceleration, although it will be constant, its value will be further co-created by the value for the Z-axis and the non-zero values ​​of the components for the X and Y axes.

Interfacing accelerometers with Arduino boards

On most of the accelerometer boards offered at our store, the output should be connected to the analogue input on the Arduino board. Grove modules require a 3.3V or 5.0V power supply. When choosing an accelerometer to suit your project's needs, you must consider the maximum value of linear acceleration that the accelerometer can measure. For example, for a small riding robot, an accelerometer with a maximum range of linear acceleration of 2 g (twice the acceleration of gravity) will be appropriate, and for a rocket model, an accelerometer with a range of 16 g will be appropriate. In addition to the accuracy of the measurement reading, which is determined by the bit resolution of the analogue-to-digital converter included in the structure of the microcontroller with which the accelerometer works, it is worth knowing that the larger the measuring range of the accelerometer, the greater the measurement accuracy. If you choose an accelerometer with a too-small measuring range for your project, then you may notoriously obtain information about the reading off-scale, which will make it impossible to correctly determine the acceleration of the object.

What other factors are worth paying attention to when buying an accelerometer?

When using accelerometers, gyroscopes or IMU systems, to achieve and maintain the required position of an object in space, other factors may affect the measurement results. The main problem is the sampling rate of the analogue-to-digital converter built into the microcontroller that receives the signal from the gyroscope through the analogue input. Due to the structure of the Sample & Hold system, the microcontroller "needs" a certain amount of time to measure and store the measurement result, some measurement data is lost during each holding cycle of the previously measured voltage signal. One of the most popular methods to partially compensate for this problem is the use of the Kalman filter. Another factor influencing the accuracy of the measurement is temperature changes, to which the sensors may be particularly sensitive, depending on the quality of the structure, including the term kinetics of the elements that the sensor is made of. Most MEMS sensor application notes describe the effect of temperature on the sensor output signal.