Error While writing Library for Gy521

[vishnumaiea]

When you want to create an object of a class and it doesn't take in any parameters, then

Gy521 goo;  //object declaration

is enough. Then invoke the initialization function,

goo.begin();  //initialization

For that, you need to create an initialization function. You can copy the statements in your constructor there.

[rafitc99]

@vishnumaiea Thank you. I made the changes, it worked well.
Next, I want to return 3 variables in getAcData() function. Is there any way to do this ? Can i access AcX,AcY,AcZ globally via main code.

[vishnumaiea]

@rafitc99 The member variables of a class can not be accessed without an accompanying object; that's the concept of a class. If you want to return three values, simply update the member variables AcX, Ac and AcZ, and access them as,

Serial.println(goo.AcX);
Serial.println(goo.AcY);
Serial.println(goo.AcZ);

[rafitc99]

@vishnumaiea

Serial.println(goo.AcX);
Serial.println(goo.AcY);
Serial.println(goo.AcZ);

while using above code, I'm getting '0'. not updating,

[saheen_palayi]

@rafitc99 is it fixed ?,u found a solution?

[rafitc99]

@saheen_palayi Nop, while calling goo.AcX getting zero as output. not getting updated value.

[saheen_palayi]

@rafitc99 I dont think u can access those like that did you tried those lines after

 goo.getAcData();
 goo.getGyData();

[rafitc99]

@saheen_palayi yeah! that was the problem. Now it's worked. Thank you @saheen_palayi and @vishnumaiea

[salmanfaris]

@rafitc99 What was the solution?

[rafitc99]

@salmanfaris forgot to call function getAcData() and getGyData() before goo.AcX...