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Accelerometers

Accelerometers, gyroscopes and inertial navigation systems (IMU) are small, multi-purpose sensor devices that appear in an increasing number of electronic devices in our daily environment, including in mobile phones, game consoles, toys, self-balancing robots, as well as in Motion Capture - the technology of human body movement analysis used not only in medicine. Accelerometers are mainly used to measure the linear acceleration of an object, gyroscopes to measure its angular velocity and orientation, and the IMU systems are an integrated combination of a gyro and accelerometer, providing the control system with all the necessary data about the movement and position of the object. The implementation of such measurement functions is also possible thanks to our Grove accelerometers and gyroscopes.

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Digital compass HMC1022 - I2C/UART GY-26

The digital compass module based on Honeywell HMC1022 , which works on the principle of using magnetoresistance measuring the Earth's magnetic field in order to obtain the...
Index: GRL-14543
Index: GRL-14543
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Regular price €30.21 Price €30.21

LIS3DH 3-axis I2C / SPI digital accelerometer - Adafruit 2809

Sensor for measuring acceleration in three axes in the range: ± 2g, ±4 g, ±8 g / ±16 g. Powered with the voltage from 3 V to 5 V. It communicates over the I2C or SPI bus.
Index: ADA-05295
Index: ADA-05295
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Regular price €6.02 Price €6.02

IMU 10DoF - MPU9255 + BMP280 - 3-axis accelerometer, gyroscope, magnetometer and barometer - Waveshare 12476

The sensor is a combination of 3-axis gyro, accelerometer and compass. Allows you to measure acceleration, magnetic field and angular velocity in the configurable ranges....
Index: WSR-08298
Index: WSR-08298
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Regular price €15.33 Price €15.33

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 €1.14 Price €1.14

Grove - 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 modules of Arduino and Raspberry.
Index: SEE-11358
Index: SEE-11358
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Regular price €0.53 Price €0.53

DFRobot Gravity - vibration sensor with piezoelectric membrane

Analog vibration sensor with piezoelectric membrane. It is powered with the voltage from 3.3 V to 5 V, it works with Arduino modules.
Index: DFR-04713
Index: DFR-04713
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Regular price €3.84 Price €3.84

LSM9DS1 Sensor Stick IMU 9DoF - 3-axis accelerometer, gyroscope and magnetometer I2C - SparkFun SEN-13944

The sensor is a combination of 3-axis digital gyroscope, accelerometer and compass. It allows you to measure acceleration, magnetic field and angular velocity in the...
Index: SPF-07191
Index: SPF-07191
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Czas oczekiwania: ok. 10-30 dni
Regular price €17.88 Price €17.88

DFRobot Gravity - vibration sensor

A simple vibration sensor with digital output. It is supplied with the voltage from 3.3 V to 5 V, it works with Arduino modules.
Index: DFR-04711
Index: DFR-04711
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Regular price €2.67 Price €2.67

LSM9DS1 9DoF IMU - 3-axis accelerometer, gyroscope and magnetometer I2C/SPI - SparkFun SEN-13284

The sensor is a combination of 3-axis digital gyroscope, accelerometer and compass. It allows you to measure acceleration, magnetic field and angular velocity in the...
Index: SPF-04572
Index: SPF-04572
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Regular price €17.88 Price €17.88

MinIMU-9 v5 9DOF - accelerometer, gyroscope and magnetometer I2C - Pololu 2738

The sensor allows to measure 9 sizes: acceleration X, Y, Z magnetic field X, Y, Z and angular velocity X, Y, Z. It is a combination of 3-axis accelerometer and gyroscope...
Index: PLL-05528
Index: PLL-05528
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Regular price €13.93 Price €13.93

AltIMU-10 v5 - gyroscope, accelerometer, compass and I2C 3-5V altimeter - Pololu 2739

Sensor for measuring acceleration, magnetic field, angular speed and altitude. It is a combination of 3-axis accelerometer and gyroscope LSM6DS33, LIS3MDL magnetometer and...
Index: PLL-05728
Index: PLL-05728
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Regular price €20.44 Price €20.44

Triple Axis Accelerometer Breakout - LIS3DH - SparkFun SEN-13963

Sensor LIS3DH is a 3-axis digital accelerometer. It allows you to measure acceleration in the configurable ranges. It communicates via the I2C or SPI bus, it is powered from a...
Index: SPF-08064
Index: SPF-08064
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Regular price €6.02 Price €6.02

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.