Description
Sensor for measurements of the acceleration field and angular velocity in three axes. It is characterized by small size, low energy consumption and simple use. It communicates via the I2C bus or SPI. The module has a voltage regulator and necessary passive components. The pins are solder fields on the goldpin connectors (included) for connecting the sensor viawiresor to directly attach the breadboard.
The module has a built in converter step-down, whereby it is possible to work with voltages from 2.5 V to 5.5 V. The regulator's output is available on pin VDD and can power external systems with the current of up to 150 mA.
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The product is compatible with Arduino The manufacturer has prepareda libraryfor users ofArduino on the GitHub. |
Pins
The sensor has 9 pins for mounting the goldpin connectors - pitch of 2.54 mm (included). SCL and SDA pins tolerate the voltage higher than 3.3 V as they are attached to a voltage converter. The remaining pins are not connected to it and do not tolerate 5 volts, therefore, they must be connected through an external logic level converter.
| Name | Description |
|---|---|
| VDD | Regulated output 3.3 V, max. 150 mA. |
| VIN |
The powering of the system is from 2.5 V to 5.5 V. The converter aligns the pinss SCL and SDA to I2C and SPI bus to that level. |
| GND | The ground of the system. |
| SDA / SDI / SDO | Data line for I2C and data input line for SPI. High equal to VIN, low status is 0 V. |
| SCL / SPC | Clock line for I2C and SPI. High status equals to VIN, low status is 0 V. |
| SDO / SA0 | Data output line for SPI. High status equals to VDD, low status is 0 V. It is working with the voltage of 3.3 V. |
| CS | The choice of the data bus. High status (VDD) enables the I2C (set by default) communication. Low voltage starts the SPI bus. |
| INT2 | Programmable interrupt. It works with a voltage of 3.3 V. The details are inthe documentation. |
| INT1 | Programmable interrupt. It works with a voltage of 3.3 V. The details are inthe documentation. |
Specification
- Supply voltage: 2.5 V to 5.5 V
- Current consumption: 2 mA
- Three axes: X, Y, Z
- Communication interface: I2C, SPI
- Measuring ranges (configurable):
- Accelerometer: ±2, ±4, ±6, ±16 g
- Gyroscope: ±125, ±245, ±500, ±1000, ±2000 °/s
- Size: 23 x 10 x 2.5 mm
- Weight: 0.6 g (without connectors)
Details inthe documentation.
Useful links |
