Skip to main content

Grove - 3-Axis Digital Accelerometer 40g (ADXL357)

pir

You can find a variety of 3-axis accelerometers on our website that can meet different scenarios and needs. This time, we bring you the industrial grade, high stability, high precision and low power ADI ADXL series three-axis accelerometers.

The Grove - 3-Axis Digital Accelerometer ±40g (ADXL357) is a digital output MEMS Accelerometer. This sensor has three different selectable measuring ranges and accuracies: ±[email protected] LSB/g, ±[email protected] LSB/g, ±[email protected] LSB/g. You just need to do little calibration work to get a relatively accurate result. It output all the data via grove I2C port, and the I2C address is also selectable. What's more, we also provide two interrupt output pins which can be configured into 4 modes.

The ADI ADXL Series Accelerometer includes four products that will meet your different range and output needs:

ProductMeasurement RangeOutput Port
Grove - 3-Axis Analog Accelerometer ±20g (ADXL356B)±10 / ±20gAnalog
Grove - 3-Axis Analog Accelerometer ±40g (ADXL356C)±10g / ±40gAnalog
Grove - 3-Axis Digital Accelerometer ±40g (ADXL357)±[email protected] LSB/g / ±[email protected] LSB/g / ±[email protected] LSB/gDigital I2C
Grove - 3-Axis Digital Accelerometer ±200g (ADXL372)±200gDigital I2C

pir

Features

  • Industry leading noise, minimal offset drift over temperature, and long-term stability, enabling precision applications with minimal calibration.
  • Hermetic package offers excellent long-term stability 0 g offset vs. temperature (all axes): 0.75 mg/°C maximum
  • Ultralow noise density (all axes): 80 μg/√Hz
  • Build-in 20-bit analog-to-digital converter (ADC)
  • Low drift, low noise, and low power
  • Support two channel interrupt output
  • Support FIFO(96*21-bit)

APPLICATIONS

  • Inertial measurement units (IMUs)/altitude and heading reference systems (AHRSs)
  • Platform stabilization systems
  • Structural health monitoring
  • Condition monitoring
  • Seismic imaging
  • Tilt sensing
  • Robotics

Specification

ParameterValue
Supply voltage3.3V / 5V
Operating ambient temperature-40 – 125℃
Sensitivity at XOUT, YOUT, ZOUT / (Ratiometric to V1P8ANA)±10 [email protected] mv/g (Typ.) / ±20 [email protected] mv/g (Typ.) / ±40 [email protected] mv/g (Typ.)
Sensitivity Change due to Temperature±0.01%/°C (TA = −40°C to +125°C)
0g OFFSET / (Referred to V1P8ANA/2)±125 mg(Typ.)
Output interfaceDigital

Pinout

pir

pir

Platforms Supported

ArduinoRaspberry Pi

pir

pir

Getting Started

Play With Arduino

Materials required

Seeeduino V4.2Base ShieldGrove 3-aixs Accelermeter ADXL357

pir

pir

pir

Get ONE NowGet ONE NowGet ONE Now

In addition, you can consider our new Seeeduino Lotus M0+, which is equivalent to the combination of Seeeduino V4.2 and Baseshield.

note
    **1** Please plug the USB cable gently, otherwise you may damage the port. Please use the USB cable with 4 wires inside, the 2 wires cable can't transfer data. If you are not sure about the wire you have, you can click [here](https://www.seeedstudio.com/Micro-USB-Cable-48cm-p-1475.html) to buy 

**2** Each Grove module comes with a Grove cable when you buy. In case you lose the Grove cable, you can click [here](https://www.seeedstudio.com/Grove-Universal-4-Pin-Buckled-20cm-Cable-%285-PCs-pack%29-p-936.html) to buy.

Hardware Connection

  • Step 1. Connect the Grove - 3-Axis Analog Accelerometer ±20g (ADXL357) to the I2c port of the Base Shield.

  • Step 2. Plug Grove - Base Shield into Seeeduino.

  • Step 3. Connect Seeeduino to PC via a USB cable.

pir

Software

note
    If this is the first time you work with Arduino, we strongly recommend you to see [Getting Started with Arduino](https://wiki.seeedstudio.com/Getting_Started_with_Arduino/) before the start.
//basic_demo.ino
#include "Seeed_adxl357b.h"


#if defined(ARDUINO_ARCH_AVR)
#pragma message("Defined architecture for ARDUINO_ARCH_AVR.")
#define SERIAL Serial
#elif defined(ARDUINO_ARCH_SAM)
#pragma message("Defined architecture for ARDUINO_ARCH_SAM.")
#define SERIAL SerialUSB
#elif defined(ARDUINO_ARCH_SAMD)
#pragma message("Defined architecture for ARDUINO_ARCH_SAMD.")
#define SERIAL SerialUSB
#elif defined(ARDUINO_ARCH_STM32F4)
#pragma message("Defined architecture for ARDUINO_ARCH_STM32F4.")
#define SERIAL SerialUSB
#else
#pragma message("Not found any architecture.")
#define SERIAL Serial
#endif


#define CALI_BUF_LEN 15
#define CALI_INTERVAL_TIME 250
int32_t cali_buf[3][CALI_BUF_LEN];
int32_t cali_data[3];

float factory;

Adxl357b adxl357b;


int32_t deal_cali_buf(int32_t *buf)
{
int32_t cali_val = 0;

for(int i = 0;i < CALI_BUF_LEN;i++)
{
cali_val += buf[i];
}
cali_val = cali_val/CALI_BUF_LEN;
return (int32_t)cali_val;
}


void calibration(void)
{
int32_t x;
SERIAL.println("Please Place the module horizontally!");
delay(1000);
SERIAL.println("Start calibration........");

for(int i=0;i<CALI_BUF_LEN;i++)
{
if(adxl357b.checkDataReady())
{
if(adxl357b.readXYZAxisResultData(cali_buf[0][i],cali_buf[1][i],cali_buf[2][i]))
{
}
}
delay(CALI_INTERVAL_TIME);
// SERIAL.print('.');
}
// SERIAL.println('.');
for(int i=0;i<3;i++)
{
cali_data[i] = deal_cali_buf(cali_buf[i]);
SERIAL.println(cali_data[i]);
}
x = (((cali_data[2] - cali_data[0]) + (cali_data[2] - cali_data[1]))/2);
factory = 1.0 / (float)x;
// SERIAL.println(x);
SERIAL.println("Calibration OK!!");
}






void setup(void)
{
uint8_t value = 0;
float t;

SERIAL.begin(115200);
if(adxl357b.begin())
{
SERIAL.println("Can't detect ADXL357B device .");
while(1);
}
SERIAL.println("Init OK!");
/*Set full scale range to ±40g*/
adxl357b.setAdxlRange(FOURTY_G);
/*Switch standby mode to measurement mode.*/
adxl357b.setPowerCtr(0);
delay(100);
/*Read Uncalibration temperature.*/
adxl357b.readTemperature(t);

SERIAL.print("Uncalibration temp = ");
SERIAL.println(t);
/**/
calibration();

}


void loop(void)
{
int32_t x,y,z;
uint8_t entry = 0;
if(adxl357b.checkDataReady())
{
if(adxl357b.readXYZAxisResultData(x,y,z))
{
SERIAL.println("Get data failed!");
}
SERIAL.print("X axis = ");
SERIAL.print(x*factory);
SERIAL.println('g');
SERIAL.print("Y axis = ");
SERIAL.print(y*factory);
SERIAL.println('g');
SERIAL.print("Z axis = ");
SERIAL.print(z*factory);
SERIAL.println('g');

}
delay(100);
}




  • Step 4. Upload the demo. If you do not know how to upload the code, please check How to upload code.

  • Step 5. Open the Serial Monitor of Arduino IDE by click Tool-> Serial Monitor. Or tap the ++ctrl+shift+m++ key at the same time. Set the baud rate to 115200.

  • Step 6. Calibration wait for calibration, just few seconds the calibration will be finished

  • Step 7. Now you can use this sensor, and the output will be like this:

Start calibration.......Init OK!
Uncalibration temp = 29.20
Please Place the module horizontally!
Start calibration........
-1652
11143
6063
Calibration OK!!
X axis = -1.24g
Y axis = 8.50g
Z axis = 4.55g
X axis = -1.21g
Y axis = 8.43g

Schematic Online Viewer

Resources

Tech Support & Product Discussion

Thank you for choosing our products! We are here to provide you with different support to ensure that your experience with our products is as smooth as possible. We offer several communication channels to cater to different preferences and needs.

Loading Comments...