BMA220 3-axis I2C digital accelerator - DFRobot module

Index: DFR-02987 EAN: 6959420908400

Sensor for measuring acceleration in three axes in the range: ± 2 g, ±4 g, ±8 g / ±16 g. Powered with the voltage of 2.0 V to 3.6 V, it is characterized by small size, low energy consumption and simple use. It communicates via the I2C bus.

BMA220 3-axis I2C digital accelerator - DFRobot module
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Manufacturer: DFRobot
Compatibility: Arduino

Description: BMA220 3-axis I2C digital accelerator - DFRobot module

Sensor for measuring acceleration in three axes. It is characterized by small size, low energy consumption and simple use. It communicates via the I2C bus.

 BMA220 akcelerometr cyfrowy I2C

For communication with the central unit, the popular I2C bus (TWI) is used. The module has, necessary for the correct operation of the system, passive elements. Leads are popular goldpin connectors (in the set for self-soldering), for connecting the sensor via wires or for connecting directly to breadboard.

    

The product is compatible with Arduino

Manufacturer prepared a libraryanduser's guidefor users ofArduino.

 

Since the maximum voltage, with which the system works is 3.6 V, to work with Arduinoneeded is a voltage converter. The exceptions are the modules operating with voltages of 3.3 V, for example,Arduino Pro Mini 328 - 3.3 V/8 MHz.

 

Pins

The sensor has five pins for mounting the goldpin connectors - 2.54 mm pitch (not included).

BMA220 akcelerometr cyfrowy I2C

 

Name Description
VCC The module's supply voltage ranges from 2.0 V to 3.6 V.
GND The ground of the system.
SCL Clock line of the I2C bus (TWI).
SDA The data line of the I2C bus (TWI).
INT External interrupt output  (details indocumentation).

Resolution

Data about the resolution and sensitivity of the sensor are presented in the table below.

 

The registry

range

Range Sensitivity Resolution Example of usage
00 ± 2 g 16 LSB/g 62.5 mg / LSB Orientation recognition

01

± 4 g 8 LSB/g 125 mg / LSB Games

10

± 8 g 4 LSB/g 250 mg / LSB Games
11 ± 16 g 2 LSB/g 500 mg / LSB Detection of vibration

Specification of BMA220 3-axis I2C digital accelerator - DFRobot module

  • Supply voltage: 2.0 V - 3.6 V
  • The voltage of pins: 1,6 V to 3,6 V
  • Low current consumption: up to 250 µA (up to 10 µA in standby mode)
  • Three axes: X, Y, Z
  • Communication interface: I2C (TWI)
  • Does not contain pull-up resistors - pulling up the line of the I2C bus (details on the diagram)
  • Resolution:details in the table
  • Measuring range (configurable): ±2 g, ±4 g, ±8 g, ±16 g
  • Programmable interrupt
  • Pins:strap goldpin pitch of 2.54 - kit for self-soldering
  • Two mounting holes with the diameter of 3 mm
  • Board sizes: 22 x 13 mm

 

 

Package width 5.5 cm
Package height 6 cm
Package depth 2.5 cm
Package weight 0.01 kg

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