Triple Axis Accelerometer Module (ADXL 345)

3-Axis Acceleration Detection (X, Y, Z axes)
High Resolution (13-bit) with ±2g to ±16g range
I2C and SPI Interfaces for easy microcontroller integration
Low Power Consumption ideal for portable devices
Used in Motion Sensing, Tilt Detection, and Robotics

SKU: aA1821 Categories: IMU, Accelerometer, Magnetometer & Gyroscope, Sensors Tags: IMU, Accelerometer, Magnetometer & Gyroscope, Sensors

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Description

This module is a Triple Axis Accelerometer based on the ADXL345 chip, designed to measure acceleration in X, Y, and Z directions with high precision and low power consumption.

The ADXL345 module offers digital output via I2C or SPI interface, making it easy to integrate with microcontrollers like Arduino, ESP32, Raspberry Pi, and more. It’s ideal for applications such as motion detection, tilt sensing, vibration monitoring, and gesture recognition.

This compact sensor supports both high-resolution and wide-range acceleration sensing, with selectable sensitivity from ±2g to ±16g. Its low-profile and breadboard-friendly design make it a perfect fit for embedded systems and portable electronics.

Features:

Based on the ADXL345 3-axis accelerometer chip
Measures acceleration in X, Y, and Z axes
Selectable sensitivity: ±2g, ±4g, ±8g, ±16g
Digital output via I2C or SPI interface
Low power consumption, ideal for battery-powered devices
Compact, breadboard-compatible design

Package Includes:
1 x ADXL345 Triple Axis Accelerometer Module

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Pin Connections

1 Table

Pin Connections Table 1

Board	Sensor Pin	Connection
ADXL345	VCC/GND/SDA/SCL	3.3-5V / GND / board SDA / board SCL

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Triple Axis Accelerometer Module (ADXL 345)

7 Examples • C/C++ | Boards: Arduino Uno, Arduino Nano, Arduino Mega, ESP32, ESP8266, STM32, Raspberry Pi Pico

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Triple Axis Accelerometer Module (ADXL 345) - Arduino Uno

Triple Axis Accelerometer Module (ADXL 345) - Arduino Nano

Triple Axis Accelerometer Module (ADXL 345) - Arduino Mega

Triple Axis Accelerometer Module (ADXL 345) - ESP32

Triple Axis Accelerometer Module (ADXL 345) - ESP8266

Triple Axis Accelerometer Module (ADXL 345) - STM32

Triple Axis Accelerometer Module (ADXL 345) - Raspberry Pi Pico

📄 File: triple_axis_accelerometer_module_(adxl_345)_-_arduino_uno.inoArduino Uno

755 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for Arduino Uno: A4=SDA, A5=SCL

6#include <Wire.h>

7#include <Adafruit_ADXL345_U.h>

9Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified(12345);

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!accel.begin()) {

15 Serial.println("ADXL345 not found - check wiring!");

16 while (1) delay(10);

17 }

18 accel.setRange(ADXL345_RANGE_16_G);

19}

21void loop() {

22 sensors_event_t event;

23 accel.getEvent(&event);

25 Serial.print("X: "); Serial.print(event.acceleration.x); Serial.print(" ");

26 Serial.print("Y: "); Serial.print(event.acceleration.y); Serial.print(" ");

27 Serial.print("Z: "); Serial.print(event.acceleration.z); Serial.println(" m/s^2");

29 delay(200);

30}

📄 File: triple_axis_accelerometer_module_(adxl_345)_-_arduino_nano.inoArduino Nano

756 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for Arduino Nano: A4=SDA, A5=SCL

6#include <Wire.h>

7#include <Adafruit_ADXL345_U.h>

9Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified(12345);

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!accel.begin()) {

15 Serial.println("ADXL345 not found - check wiring!");

16 while (1) delay(10);

17 }

18 accel.setRange(ADXL345_RANGE_16_G);

19}

21void loop() {

22 sensors_event_t event;

23 accel.getEvent(&event);

25 Serial.print("X: "); Serial.print(event.acceleration.x); Serial.print(" ");

26 Serial.print("Y: "); Serial.print(event.acceleration.y); Serial.print(" ");

27 Serial.print("Z: "); Serial.print(event.acceleration.z); Serial.println(" m/s^2");

29 delay(200);

30}

📄 File: triple_axis_accelerometer_module_(adxl_345)_-_arduino_mega.inoArduino Mega

758 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for Arduino Mega: D20=SDA, D21=SCL

6#include <Wire.h>

7#include <Adafruit_ADXL345_U.h>

9Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified(12345);

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!accel.begin()) {

15 Serial.println("ADXL345 not found - check wiring!");

16 while (1) delay(10);

17 }

18 accel.setRange(ADXL345_RANGE_16_G);

19}

21void loop() {

22 sensors_event_t event;

23 accel.getEvent(&event);

25 Serial.print("X: "); Serial.print(event.acceleration.x); Serial.print(" ");

26 Serial.print("Y: "); Serial.print(event.acceleration.y); Serial.print(" ");

27 Serial.print("Z: "); Serial.print(event.acceleration.z); Serial.println(" m/s^2");

29 delay(200);

30}

📄 File: triple_axis_accelerometer_module_(adxl_345)_-_esp32.inoESP32

757 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for ESP32: GPIO21=SDA, GPIO22=SCL

6#include <Wire.h>

7#include <Adafruit_ADXL345_U.h>

9Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified(12345);

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!accel.begin()) {

15 Serial.println("ADXL345 not found - check wiring!");

16 while (1) delay(10);

17 }

18 accel.setRange(ADXL345_RANGE_16_G);

19}

21void loop() {

22 sensors_event_t event;

23 accel.getEvent(&event);

25 Serial.print("X: "); Serial.print(event.acceleration.x); Serial.print(" ");

26 Serial.print("Y: "); Serial.print(event.acceleration.y); Serial.print(" ");

27 Serial.print("Z: "); Serial.print(event.acceleration.z); Serial.println(" m/s^2");

29 delay(200);

30}

📄 File: triple_axis_accelerometer_module_(adxl_345)_-_esp8266.inoESP8266

751 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for ESP8266: D2=SDA, D1=SCL

6#include <Wire.h>

7#include <Adafruit_ADXL345_U.h>

9Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified(12345);

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!accel.begin()) {

15 Serial.println("ADXL345 not found - check wiring!");

16 while (1) delay(10);

17 }

18 accel.setRange(ADXL345_RANGE_16_G);

19}

21void loop() {

22 sensors_event_t event;

23 accel.getEvent(&event);

25 Serial.print("X: "); Serial.print(event.acceleration.x); Serial.print(" ");

26 Serial.print("Y: "); Serial.print(event.acceleration.y); Serial.print(" ");

27 Serial.print("Z: "); Serial.print(event.acceleration.z); Serial.println(" m/s^2");

29 delay(200);

30}

📄 File: triple_axis_accelerometer_module_(adxl_345)_-_stm32.inoSTM32

751 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for STM32: PB7=SDA, PB6=SCL

6#include <Wire.h>

7#include <Adafruit_ADXL345_U.h>

9Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified(12345);

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!accel.begin()) {

15 Serial.println("ADXL345 not found - check wiring!");

16 while (1) delay(10);

17 }

18 accel.setRange(ADXL345_RANGE_16_G);

19}

21void loop() {

22 sensors_event_t event;

23 accel.getEvent(&event);

25 Serial.print("X: "); Serial.print(event.acceleration.x); Serial.print(" ");

26 Serial.print("Y: "); Serial.print(event.acceleration.y); Serial.print(" ");

27 Serial.print("Z: "); Serial.print(event.acceleration.z); Serial.println(" m/s^2");

29 delay(200);

30}

📄 File: triple_axis_accelerometer_module_(adxl_345)_-_raspberry_pi_pico.inoRaspberry Pi Pico

767 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for Raspberry Pi Pico: GPIO4=SDA, GPIO5=SCL

6#include <Wire.h>

7#include <Adafruit_ADXL345_U.h>

9Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified(12345);

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!accel.begin()) {

15 Serial.println("ADXL345 not found - check wiring!");

16 while (1) delay(10);

17 }

18 accel.setRange(ADXL345_RANGE_16_G);

19}

21void loop() {

22 sensors_event_t event;

23 accel.getEvent(&event);

25 Serial.print("X: "); Serial.print(event.acceleration.x); Serial.print(" ");

26 Serial.print("Y: "); Serial.print(event.acceleration.y); Serial.print(" ");

27 Serial.print("Z: "); Serial.print(event.acceleration.z); Serial.println(" m/s^2");

29 delay(200);

30}

Project Notes:

I2C 3-axis accelerometer.

Required Libraries:

Adafruit ADXL345GitHub

Specification

WeightWeight	6 g
Dimensions	3 × 2 × 1 cm
Sensor	ADXL345
Axes	3 (X, Y, Z)
Interface	I²C / SPI
Measurement Range	±2g / ±4g / ±8g / ±16g
Operating Voltage	3.3V–5V
Material	PCB with electronic components
Usage	Motion detection, tilt sensing, robotics, wearable devices