'class ADXL345' has no member named 'begin'

Using Arduino Programming Questions
1

Hi, I'd like to ask, why is there error that stated:
'class ADXL345' has no member named 'begin'

#include <Wire.h>
#include <ADXL345.h>

ADXL345 accelerometer;

void setup(void)
{
  Serial.begin(9600);
  
  pinMode(5,OUTPUT);
   Serial.println("Initializing ADXL345...");
     if(!accelerometer.begin())
   {
Serial.printlm("Could not find a valid ADXL345 sensor, check wiring!");
delay(500);
   }
  accelerometer.setFreeFallThreshold(0.35);
  accelerometer.setFreeFallDuration(0.1);
  accelerometer.useInterrupt(ADXL345_INT1);
}
void loop(void)
{
  delay(50);
Vector norm = accelerometer.readNormalize();
Activites activ = accelerometer.readActivites();
if(activ.isFreeFall)
{
  Serial.println("free fall detected");
  digitalWrite(5, HIGH);
  delay(3000);
}
}
2

It's almost certainly because the library you have for the accelerometer has no function called "begin"

1 Like
3

Suggestion: download the correct library.

Or, start by studying the examples that come with the library you already have.

4

It seems it was removed in 2017 (replaced with Wire.begin() according to the changelog).

You may want to have a look at this example.

5

after changing it to
if(!accelerometer Wire.begin())
there is another error
no match for 'operator!' (operand type is 'ADXL345')

6

That line doesn't make a lot of sense.
I'm not even sure

if (! Wire.begin ())

makes sense, because I think Wire.begin is a void function.

7

Post your complete revised code.

Post the complete error message .... not your paraphased version of it.

Post a GitHub link to the exact library you're using.

1 Like
8

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