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Specification
- Power supply voltage: 2,4 - 3,6 V
- Built-in FIFO queue
- Communication interface: I2C or SPI
- Built-in temperature sensor
- Gyroscope:
- 3 axes: X, Y, Z
- Adjustable range: ± 245, ± 500 and ± 2000 °/s
- Resolution: 16 bits
- Accelerometer:
- 3 axes: X, Y, Z
- Adjustable range: ± 2 g, ± 4 g, ± 6 g, ± 8 g and ± 16 g
- Resolution: 16 bits
- Magnetometer (compass)
- 3 axes: X, Y, Z
- Scope: ± 2, ± 4, ± 8, ± 12 gauss
- Resolution: 13 bits
- Outlets: holes for goldpin connectors - 2.54 mm raster
- Plate dimensions: 16 x 28 mm
- Two mounting holes with diameter: 3 mm
Details on the technical parameters of the sensors can be found in the documentation.
Description
The MEMS module allows the measurement of acceleration, magnetic field and angular velocity in three-dimensional space. With this data, the user can identify the device in three-dimensional space. There are two integrated circuits on the board: A 3-axis gyroscope and a 3-axis accelerometer. Sensors of this type are used in smartphones, tablets and various types of video game controllers.
For communication with the central unit, the user can choose SPI or I2C interface (in standard mode up to 100 kHz and fast up to 400 kHz). The module has the necessary passive elements for proper operation of the system. The leads are holes to solder thegoldpin connectors(not included in the set), which allow the sensor to be connected bywires ordirectly connected to the contact plate.
Because the maximum voltage with which the system works is 3.6V, to work with Arduino voltage converter is necessary. The exception are modules working with 3.3V e.g. ArduinoPro Mini 328 - 3.3V/8MHz.
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Product compatible with Arduino In order to facilitate work with the module, the manufacturer has prepared auser guidewith a sample program for Arduino and project files with a library available onGitHub. |
The excerpts .
The sensor has 13 leads for mountinggoldpin-typeconnectors - 2.54 mm raster (not included).
| Name |
Description |
| CSG |
Selecting the interface for the gyroscope:
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| CXM |
Choice of interface for accelerometer and magnetometer:
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| SDOG |
Gyroscope operation pin:
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| SDOXM |
Pin for accelerometer and magnetometer:
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| SCL |
I2C bus clock line (TWI) and SPI |
| SDA |
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| VDD | Supply voltage from 2.4 V to 3.6 V |
| GND | System weight |
| DEN | There is no precise information in the documentation on this exit. Pin can be left unconnected |
| INTG | Programmable gyroscope interruption: activated in low or high state, push-pull or open drain output |
| SECOND | An interruption indicating that new gyroscope data is readable or the buffer is overflowing |
| INT1XM | Output 1 of programmable interrupt of accelerometer and magnetometer - (details in the documentation) |
| INT2XM | Output 2 of programmable interruption of accelerometer and magnetometer - (details in the documentation) |
In addition to the above described leads, there are jumpers on the board to facilitate module operation. They enable to switch on pull-up resistors according to the drawing below.
Useful links |
