What is the ADXL345?
The ADXL345 is a small, thin, ultralow power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16 g. It measures the static acceleration of gravity in tilt-sensing appli- cations, as well as dynamic acceleration resulting from motion or shock.
How do I use ADXL345?
Below we have included all the steps that you will need to follow to connect the ADXL345 accelerometer to an Arduino Uno.
- Wire the GND pin of the ADXl345 to the GND Pin on the Arduino.
- Wire the VCC pin of the ADXL345 to the 3v3 Pin on the Arduino.
- Wire the SCL pin of the ADXL345 to the SCL Pin on the Arduino.
How do I test my ADXL345?
- Install the Library: Download the ADXL345 library and install it.
- Test: Click “File->Examples->Adafruit_ADXL345->sensortest” to load the example sketch from the library.
- Calibrate: The ADXL chips are calibrated at the factory to a level of precision sufficient for most purposes.
What is the difference between ADXL335 and ADXL345?
The ADXL335 is a triple axis MEMS accelerometer with a low power consumption of 150 μA in the measurement mode! Grove – ADXL345 is with the extreme low power consumption, as low as 23 μA in measurement mode and 0.1 μA in standby mode.
Is ADXL345 analog or digital?
The ADXL345 is a digital-output, 3-axis accelerometer whose low power consumption and built-in features make it ideal for use in a wide variety of applications.
What is digital accelerometer?
An accelerometer is a tool that measures proper acceleration. Proper acceleration is the acceleration (the rate of change of velocity) of a body in its own instantaneous rest frame; this is different from coordinate acceleration, which is acceleration in a fixed coordinate system.
How does Arduino accelerometer work?
Working. The accelerometer sensors measure the acceleration by measuring the change in capacitance. Its structure has a mass attached to a spring which moves along one direction and has fixed outer plates. So, when acceleration is applied in any direction, the capacitance between the plates and the mass will change.
Which type of accelerometer is ADXL335?
3-axis accelerometer
The ADXL335 is a small, thin, low power, complete 3-axis accelerometer with signal conditioned voltage outputs. The product measures acceleration with a minimum full-scale range of ±3 g.
What does G mean in accelerometer?
Measuring acceleration makes it possible to obtain information such as object inclination and vibration. M/s2 is the international (SI*) unit for acceleration. g is also used as a unit for acceleration, relative to standard gravity (1g = 9.80665m/s2). Other units include Gal (CGS) used to measure seismic acceleration.
Does my iPhone have an accelerometer?
All iOS devices have a three-axis accelerometer, which delivers acceleration values in each of the three axes shown in Figure 1.
What can the adxl345 be used for?
An integrated, patent pending 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor intervention. The ADXL345 is well suited to measure the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock.
Is the adxl345 accelerometer compatible with Arduino?
Like most sensors, this device comes with an easy-to-use breakout board and is usable through SPI or I2C. This tutorial aims to show how you can interface this accelerometer with an Arduino. In reality, the ADXL345 is capable of measuring acceleration forces in the x, y and z axes.
Is the adxl345 an I2C or SPI device?
Serial Data I2C / Serial Data Input (SPI 4-WIRE) / Serial Data Input and Output (SPI 3-Wire) With the ADXL345, I2C and SPI digital communications are available. In both cases, the ADXL345 operates as a slave device.
What are the acceleration forces of the adxl345?
Hence, the ADXL345 gives acceleration forces in g units, g being the acceleration due to gravity equal to 9.8 m/s 2. The ADXL345 can measure acceleration in as much as ± 2g with an option to change the maximum to ± 4g, ± 8g and ± 16g. The acceleration forces can be static (due to gravity only) or dynamic (due to motion and gravity).