gyroscope enabled but not working on android device

Question

Hello everyone,

I'm trying to have a camera wich rotates under control of the device gyroscope. After reading the documentation and some trials, I have written a script, attached to the camera, and it works pretty well when I enter play mode in my android device through Unity Remote 4. I can obtain the quaternions from the device and the camera rotates accordingly.

But the problem arises when I build the apk and then test it on my android device (Sony Xperia Z1). In that case, the gyroscope is enabled, but I can not get the readings from the gyroscope: the quaternion value of Input.gyro.attitude is always (0,0,0,0).

I tried a lot of things, but I can not find the problem. Please , can you help me?

Thank you very much in advance (and sorry for my english).

Here is the code:

 using UnityEngine;
 using System.Collections;
 using UnityEngine.UI;
 
 public class rot : MonoBehaviour {
 
     Quaternion initialQuat;
     Quaternion attitudeFix;
     Quaternion attitudeRel;
     Text sondas;
 
     void Start () {
         Input.gyro.enabled = true;
         initialQuat = Input.gyro.attitude;
         sondas = GameObject.Find ("Sondas").GetComponent<Text> ();
 
     }
     
     void Update () {
         attitudeRel=Input.gyro.attitude*initialQuat;
         attitudeFix = new Quaternion (attitudeRel.x, -attitudeRel.z, attitudeRel.y, attitudeRel.w);
         transform.rotation = attitudeFix;
         sondas.text = "" + Input.gyro.enabled + attitudeFix;
     }
 
 }

Answer 1

Answer by eruizr · Oct 26, 2016 at 09:10 AM

Hi,

I don't know where was the problem exactly but now it is fixed. I did three things:

1) I updated to the last version of Unity.

2) Just after the initialization of the application I wrote:

Input.gyro.enabled = false;

Input.gyro.enabled = true;

3) I gave some time for the gyro of the device to start, so I wait 2 seconds before the first reading of the gyro.attitude.

Hope that this helps.

Add comment · Show 4 · Share

Wenger95 · Oct 26, 2016 at 10:24 AM 0

Share

Hi,

I tried but it still failed, I saw your question that your device is Sony, have you test it on Ios device?

I really have no idea it still return 0001. Anyway, thanks for the help.

eruizr Wenger95 · Oct 26, 2016 at 10:46 AM 0

Share

Hi again,

I have tested it on IOs devices and it works correctly. I am sorry that I could not help. I really don't know where was the problem in my case.

Regards

Wenger95 · Oct 26, 2016 at 12:24 PM 0

Share

When u test the iOS device, have add anything on Xcode? I add coremotion lib, but it's still not working.

Wenger95 · Oct 26, 2016 at 06:08 PM 0

Share

It's working now!!! I update to 5.5.0b9, and it works, my old version is 5.5.0b6. Thanks!!!!! Thank you!!!

Answer 2

Answer by Wenger95 · Oct 24, 2016 at 08:02 PM

Hi, Have you sort this? I have same issue, my Input.gyro.attitude always return 0,0,0,1. And I found out Input.gyro.enabled = true; only work once, after start it become to false.

Add comment · Share

Answer 3

Answer by Bruhpunzel · Nov 22, 2018 at 03:00 PM

On Awake I put;

Gyroscope m_Gyro;

 void Awake()
 {
     //Set up and enable the gyroscope (check your device has one)
     m_Gyro = Input.gyro;
     m_Gyro.enabled = true;
 }

void Update () { //transform.rotation = Input.gyro.attitude; Debug.Log(Input.gyro.attitude); Debug.Log(Input.isGyroAvailable); }

Reads and outputs fine for me now. Hope that helps!

Add comment · Share

Answer 4

Answer by doq · Feb 03, 2019 at 06:15 AM

I was getting zero data from attitude when I initialized in Awake or Start sometimes. I solved the issue by putting the gyro initialization in a coroutine.

 void Start()
 {
     StartCoroutine(InitializeGyro());
 }
 
 IEnumerator InitializeGyro()
 {
     Input.gyro.enabled = true;
     yield return null;
     Debug.Log(Input.gyro.attitude); // attitude has data now
 }

Add comment · Share

Answer 5

Answer by Musahan17 · Nov 02, 2020 at 10:03 AM

 private bool GyroEnabled() 
 {
     if (SystemInfo.supportsGyroscope)
     {
         gyro = Input.gyro;
         Input.gyro.enabled = true;
         return true;
     }

     return false;
 }

This kind of approach worked for me.

Add comment · Share

gyroscope enabled but not working on android device

6 Replies

Your answer

Follow this Question

Related Questions