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Attention! The product has been replaced by a new LSM303D 3-axis digital accelerometer + I2C/SPI magnetometer. |
Specification
- Power supply voltage: 2.5 V to 5.5 V
- Current consumption: 10 mA
- I2C output data (TWI):
- Accelerometer: 12-bit per axis (aligned to the left)
- Magnetometer: 12-bit per axis (aligned to the right)
- Measuring range (configurable):
- Accelerometer: ±2G, ±4G, ±8G, ±11G
- Magnetometer: ±1.3, ±1.9, ±2.5, ±4.0, ±4.7, ±5.6, ±8.1 gaus
- Dimensions: 13 × 23 × 3 mm
- Weight (without pins): 0,9 g
Description
The sensor is used to determine the acceleration and magnetic field. The measurement of these quantities is made possible by a 3-axis accelerometer and magnetometer and the passive elements necessary for the correct operation of the system. The integrated regulator allows powering the module with any voltage from 2.5V to 5.5V.
For communication with the central unit, the popular I2C bus (TWI) is used. The outputs are the popular goldpin connectors, which enable the sensor to be connected by wires or directly connected to the contact plate. The manufacturer has prepared a library for easy operation of Arduino sets.
The outputs
The sensor has nine leads for mounting goldpin-type connectors - 2.54mm raster (included). On customer's request we can solder the strip.
| PIN | Description |
| VIN | Power supply, voltage range 2.5 to 5.5V |
| GND | System mass potential |
| VDD | Output 3.3V. |
| SCL | Clock line I2C |
| SDA | I2C data line |
| DRDY | Signal the magnetometer's ready. If there is a high state (1.8V) the data is ready for reading. |
| INT1 | Configurable interruption 1 |
| INT2 | Configurable interruption 2 |
Dimensions
The outline of the system shall be contained in a rectangle of dimensions: 23 x 13mm The overall thickness does not exceed 3mm. There are two holes with an internal diameter of 2.2mm.
Module diagram
The system includes voltage regulator and passive elements necessary for proper operation.
The system includes voltage stabilizer (3.3V), filtering capacitors and resistors pulling the I2C bus lines.
Useful links
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