Design with Adafruit ADXL326 in Cirkit DesignerThe Adafruit ADXL326 is a small, thin, low-power, triple-axis accelerometer with signal conditioned voltage outputs. It is capable of measuring acceleration up to ±16 g. It is designed to measure the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion, shock, or vibration. Common applications include:
This circuit features an Arduino UNO microcontroller interfaced with an Adafruit ADXL345 accelerometer for motion detection, powered by two parallel-connected 18650 Li-ion batteries. The accelerometer communicates with the Arduino over I2C, and the system is designed for further code development to utilize the motion sensing capabilities.
Open Project in Cirkit Designer
This circuit uses an Arduino Mega 2560 to interface with multiple sensors, including an Adafruit ADXL326 accelerometer, a pressure transducer, and two MLX90614 IR temperature sensors connected via an Adafruit TCA9548A I2C multiplexer. The Arduino reads data from these sensors and outputs the values to the Serial Monitor.
Open Project in Cirkit Designer
This circuit connects an Arduino UNO microcontroller with an Adafruit ADXL345 accelerometer sensor. The Arduino powers the sensor, communicates with it via I2C (using pins A4 and A5 for SDA and SCL respectively), and runs a program to read and output the acceleration data in three axes. The purpose of the circuit is to measure acceleration and provide real-time data for analysis or further processing.
Open Project in Cirkit Designer
This circuit connects an ESP32 microcontroller to an Adafruit ADXL377 accelerometer. The ESP32 reads acceleration data along the X, Y, and Z axes from the ADXL377 via its D32, D33, and D34 pins, respectively. The circuit is likely intended for motion or orientation sensing applications, with the ESP32 processing and possibly transmitting the accelerometer data for further use.
Open Project in Cirkit Designer| Pin Number | Name | Description |
|---|---|---|
| 1 | VCC | Power supply (1.8V to 3.6V) |
| 2 | GND | Ground connection |
| 3 | XOUT | Analog voltage output for X-axis |
| 4 | YOUT | Analog voltage output for Y-axis |
| 5 | ZOUT | Analog voltage output for Z-axis |
| 6 | ST | Self-test pin (leave unconnected if not used) |
To use the ADXL326 in a circuit:
// Include the Arduino Wire library for I2C
#include <Wire.h>
// ADXL326 outputs are analog and need to be read using analog pins
const int xPin = A0;
const int yPin = A1;
const int zPin = A2;
void setup() {
// Initialize serial communication at 9600 baud rate
Serial.begin(9600);
}
void loop() {
// Read the analog values from the accelerometer
int xValue = analogRead(xPin);
int yValue = analogRead(yPin);
int zValue = analogRead(zPin);
// Convert the analog values to acceleration in g's
float xG = (xValue - 512) * (16.0 / 1024.0);
float yG = (yValue - 512) * (16.0 / 1024.0);
float zG = (zValue - 512) * (16.0 / 1024.0);
// Print the acceleration values to the serial monitor
Serial.print("X: ");
Serial.print(xG);
Serial.print("g, Y: ");
Serial.print(yG);
Serial.print("g, Z: ");
Serial.print(zG);
Serial.println("g");
// Delay before the next reading
delay(100);
}
Q: Can the ADXL326 be used with a 5V system? A: While the ADXL326 is rated for 1.8V to 3.6V, a logic level converter should be used when interfacing with a 5V system.
Q: How can I improve the accuracy of the sensor? A: Calibration is key. Perform a calibration routine at startup and consider implementing a filtering algorithm to smooth out the data.
Q: What is the purpose of the ST pin? A: The ST pin is used for self-testing the sensor. When activated, it can help verify that the sensor is functioning correctly.
Q: How do I interpret the analog output values? A: The output is proportional to the acceleration measured. You'll need to convert the analog readings to g's using the sensitivity factor provided in the technical specifications.
For further assistance, consult the Adafruit ADXL326 datasheet and additional resources provided by Adafruit.