ADXL345 IIC SPI Digital Accelerometer Module

Description

What it is

The ADXL345 accelerometer is a digital sensor that allows measuring acceleration and tilt, useful for projects requiring motion and orientation detection.

Features

• ADXL345 Sensor
• IIC SPI Digital Communication

What it is for

The accelerometer can be used to create projects that require motion and orientation detection, such as a simple digital clock that turns on when the module is tilted. Compatible with Arduino and ESP.

Tutorial: How to Use the ADXL345 IIC SPI Accelerometer Module

The ADXL345 is a digital sensor for measuring acceleration and tilt. Useful for projects that require motion and orientation detection.

What you need

• Arduino or compatible
• IIC Cable
• VCC/GND Cable
• PC with Arduino IDE

Steps

1. 1. Connect VCC to 3.3V of Arduino and GND to GND.
2. 2. Connect SDA to pin 4 of Arduino.
3. 3. Connect SCL to pin 5 of Arduino.
4. 4. Load the basic Sketch code.
5. 5. Check the datasheet for the maximum acceleration values.
6. 6. Try moving the module and observe the changes on Serial Monitor.
7. 7. Implement the module in a subsequent project.
8. 8. Test the project and fix any errors.

Example code

```cpp
#include <Wire.h>
#include <Adafruit_ADXL345_U.h>

Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified();

void setup() {
  Wire.begin();
  if (!accel.begin()) {
    Serial.println("Failed to initialize ADXL345!");
    while (1);
  }
}

void loop() {
  float x, y, z;
  accel.getAcceleration(&x, &y, &z);
  Serial.print("x:"); Serial.print(x);
  Serial.print(" y:"); Serial.print(y);
  Serial.print(" z:"); Serial.println(z);
}
```

Mini project

Create a simple digital clock that turns on when the module is tilted.

Common mistakes

• Incorrect connection to VCC/GND.
• Error in IIC pin selection.
• Incorrect or unuploaded Sketch code.
• Serial Monitor not configured correctly.

Recommended accessories

• Arduino UNO
• 16×2 LCD Display
• 10kΩ Resistor
• 3.7V Battery

Frequently asked questions

How can I connect the module if I don’t have an Arduino?
You can use a compatible microcontroller like ESP32 or Raspberry Pi.

What maximum acceleration values should I consider?
Check the datasheet. Maximum 16g.

Does the module work with Arduino Nano?
Yes, but make sure the VCC is 3.3V.

Can I use this module for a navigation project?
Yes, but consider adding a magnetometer for orientation.