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Digital Accelerometer Sensor Module

$19.95

GY-29 Digital Accelerometer

FEATURES

  • ADXL345 Chip
  • Ultralow power: as low as 23 μA in measurement mode and 0.1 μA in standby mode at VS = 2.5 V (typical)
  • Power consumption scales automatically with bandwidth
  • Full resolution, where resolution increases with g range, up to 13-bit resolution at ±16 g (maintaining 4 mg/LSB scale factor in all g ranges)
  • Patent pending, embedded memory management system with FIFO technology minimizes host processor load
  • Single tap/double tap detection
  • Activity/inactivity monitoring
  • Free-fall detection
  • Chip supply voltage range: 2.0 V to 3.6 V
  • Chip I/O voltage range: 1.7 V to VS
  • SPI (3- and 4-wire) and I2C digital interfaces
  • Flexible interrupt modes mappable to either interrupt pin
  • Measurement ranges selectable via serial command
  • Bandwidth selectable via serial command
  • Wide temperature range (−40°C to +85°C)
  • 10,000 g shock survival
  • Pb free/RoHS compliant
  • Small and thin: 3 mm × 5 mm × 1 mm LGA package
Board has a voltage regulator allowing supply voltage of between 3V and 5V. The I/O is also buffered to allow interfacing to 3.3V - 5V signals, ideal for interfacing to an Arduino.

The ADXL345 is well suited for mobile device applications. It measures the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Its high resolution (4 mg/LSB) enables measurement of inclination changes less than 1.0°.

Several special sensing functions are provided. Activity and inactivity sensing detect the presence or lack of motion and if the acceleration on any axis exceeds a user-set level. Tap sensing detects single and double taps. Free-fall sensing detects if the device is falling. These functions can be mapped to one of two interrupt output pins. An integrated, patent pending 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor intervention.

Pin Function Descriptions

Pin Number
Pin Name
Description
1
VCC
Supply Voltage 3-5VDC
2
NC
Not Internally Connected
3
NC
Not Internally Connected
4
INT2
Interrupt 2
5
INT1
Interrupt 1
6
GND
This pin must be connected to ground
7
GND
This pin must be connected to ground
8
CS
Chip Select
9
MISO - SDO
Serial Data Output (SPI 4-Wire)
Address Select (I2C)
10
MOSI-SDA
Serial Data Input (SPI 4-Wire)
Serail Data I/O (SPI 3-Wire)
Serial Data (I2C)
11
SCLK-SCL
Serial Communication Clock
SCLK (SPI)
SCL (I2C)
12
VCC
Supply Voltage 3-5VDC

Specifications

 Name
 Description
 Operating Voltage
 3-5 Volts
 Supply Current
 5 uA
 Interface
 IIC or SPI
 Operating Temperature
 -40 - 85°
 Dimentions
 18.2mm X 23.3mm X 11.6mm


Sold Out
  • Model: ADXL345 Module
  • Shipping Weight: 0.4lbs
  • 0 Units in Stock


This product was added to our catalog on Tuesday 30 August, 2011.

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