ADXL345 3-axis I2C/SPI digital accelerator - module

Specification

• Supply voltage: 3 V - 5 V
• The voltage of pins: 1,6 V to 3,6 V
• Current consumption: about 25µA
  • standby mode: 0,1µA
• Three axes: X, Y, Z
• Communication interface: I2C (TWI) or SPI
• Resolution: 10 to 13 bit for each axis
• Measurement range: ±16 g
• Operating temperature:-40 °C to +80 °C
• The dimensions of the board: 20 x 16 x 5 mm
• The set also includes goldpin strip

 

Description

Sensor for measuring the acceleration in three axes in the range of +/- 16 g. The module is powered with the voltage from 3 to 5 V, it has the voltage regulator, communicates via the I2C bus (TWI) or SPI.

 

The module has necessary for the correct operation of the system, passive elements. Pins are popular goldpin connectors for connecting the sensor viawiresor to directly attach the breadboard.

 

The product is compatible with Arduino

Library and connection diagram with Arduino, you can find it atthis address.

 

Communication

The system can be combined with the central unit via the bus I2C or SPI. To select I2C, you should indicate logical unit to CS pin or to pernamently pull CS at a constant voltage. The I2C address depends on the state at pin SDO. In the case ofhigh status, it has a value of: 0x1D, at low status: 0x53. Details, in documentation andtutorial.

Pins

The sensor has eight pins for the installation of connectors of goldpin type - pitch of 2.54 mm (included).

 

Name

Description

GND The ground of the system VCC The module's supply voltage is in the range from 3 V to 5 V CS Pin for the SPI bus - Chip Select.The logical one starts the I2C bus. INT1 The output of the external interrupt number 1 (details in documentation) INT2 Output of the external interrupt No. 2 (details in documentation) SDO The address selection of I2C bus/data line of SPI bus SCL / SCLK The data line of the I2C bus (TWI) / clock line of the SPI bus SDA / SDI Clock line of I2C bus (TWI) / data line of SPI bus

 

 

Useful links

• System documentation
• The Arduino library