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Attention! Product replaced by a new version: MinIMU-9 v3 - accelerometer, gyroscope and magnetometer IMU 9DOF I2C . |
Specification
Power supply voltage: 2.5 V - 5.5 V- Power consumption: 10 mA
- Three axes: X, Y, Z
- Communication interface: I2C (TWI)
- Measurement ranges (configurable):
- Accelerometer: ±2, ±4, ±8, ±16 g
- Gyroscope: ±250, ±500 or ±2000 °/s
- Magnetometer: ±1.3, ±1.9, ±2.5, ±4.0, ±4.7, ±5.6, ±8.1 gauss
- Size: 20.3 x 12.7 x 2.5 mm
- Weight: 0,9 g
Description
The module, through a 3-axis accelerometer, magnetometer and gyroscope, allows to measure acceleration, magnetic field and angular velocity in three-dimensional space. Knowledge of these quantities allows to locate an object in 3D space. For communication with the central unit, the popular I2C bus (TWI) is used. The module has a voltage regulator and the necessary passive elements. The outputs are popular goldpin connectors, enabling the sensor to be connected by wires or directly connectedtothe contactplate.
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Product compatible with Arduino The manufacturer has prepared a library ( L3G , LSM303 ) and a sampleprogram forArduino moduleusers. |
Queries
The sensor has five goldpin connectors - 2.54 mm raster (included).
| PIN | Description |
| SCL | I2C bus clock line. The high state is equal to the VIN voltage. Low GND. |
| SDA | I2C bus data line. High state equals VIN voltage. Low GND. |
| GND | System mass potential |
| VIN | Supply voltage from 2.6 V to 5.5 V |
| VDD | If the supply voltage is higher than 3.3V, the output can serve as a 3.3V output with a current capacity up to 150mA. When the supply voltage is in the range of 2.5V - 3.3V, it should be connected to the VDD output |
The address of I2C
The accelerometer, magnetometer and gyroscope, located in MinImu-9 module, have 7-bit addresses. They are set to the following addresses:
Dimensions
The system is small in size, its outline fits into a rectangle of dimensions: 20.3 x 12.7 mm. It is mounted with a 2.1 mm internal diameter hole.
Diagram
The system includes, among others, two voltage regulators (3 V and 1.8 V), filtering capacitors, pull-up resistors (e.g. I2C bus lines).
MinIMU-v2 vs v1
The v2 version includes newer accelerometer systems ( LSM303DLHC)and gyroscope ( L3GD20 ).The dimensions of the plate have been reduced:
The drawing shows a diagram of MinImu-9.
