Now imagine someone now rotates you 90 degrees on the roundabout so that you are now facing East. You are being rotated around the Y axis. This axis is different because we can't detect it biologically. We know we are angled by a certain amount but we don't know the direction in relation to the planet's magnetic North pole.Instead we need to use a external tool... a magnetic compass. This allows us to ascertain which direction we are facing. The same is true with our phone.

The phone also has an electronic compass which behaves like a normal compass - its "virtual needle" points to magnetic north. Android merges the information from these two sensors so that whenever a SensorEvent of TYPE_ORIENTATION is generated the values[3] array has

values[0]: Azimuth - (the compass bearing east of magnetic north)

values[1]: Pitch, rotation around x-axis (is the phone leaning forward or back)

values[2]: Roll, rotation around y-axis (is the phone leaning over on its left or right side)


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So I think (ie I don't know) the reason Android gives the azimuth (compass bearing) rather than the reading of the third accelerometer is that the compass bearing is just more useful. I'm not sure why they deprecated this type of sensor as now it seems you need to register a listener with the system for SensorEvents of type TYPE_MAGNETIC_FIELD. The event's value[] array needs to bepassed into SensorManger.getRotationMatrix(..) method to get a rotation matrix (see below) which is then passed into the SensorManager.getOrientation(..) method. Does anyone know why the Android team deprecated Sensor.TYPE_ORIENTATION? Is it an efficiency thing? That is what is implied in one of the comments to a similar question but you still need to register a different type of listener in the development/samples/Compass/src/com/example/android/compass/CompassActivity.java example.

I was having this issue so I mapped out what happens in different directions.If the device is mounted in landscape fashion, eg in a car mount the 'degrees' from the compass seem to run from 0-275 (going clockwise) above 269 ( between west and north) it counts backwards from -90 to 0, then forwards from 0 to 269. 270 becomes -90

The MongoDB Atlas website is not really usable for mobile. I'm looking for some dedicated Android app equivalent to Compass so I can search and edit database documents on my phone. The three I see on the Play store don't seem to work, even though I use the same settings to connect with Compass just fine:

I know I can get very close to true North using my Android phone and a compass app. However, since the app relies finding the magnetic pole and the magnetic pole moves around, you need to look up how many degrees magnetic North varies from true North... for your location.

That seems MADNESS . I would guess most people use the compass most of the time. I certainly do. I rarely use the map, except maybe in very built up cities, but I rarely cache in such a place. A map isn't as good where there are no roads and paths.

Which app are you talking about? A friend (sitting right next to me, who uses his phone a lot) still has a compass and it has recently been updated. It's an Android based phone and uses the geocaching app for Android.

Yeah, they seem to have linked access to the "compass" screen to the device having a magnetic sensor "compass". They aren't the same thing though, and Groundspeak's app was apparently working fine displaying the "compass" screen to those who did not have a magnetic sensor "compass".

Some Android phones don't have a compass sensor (like the Moto G4) so any compass related apps won't rotate. Google is migrating their internal sensor software to more advanced versions to be more accurate with less battery usage. As apps update to use this newer internal Android software that's dependent on a compass sensor they may no longer function as before. It's really not the app's fault as they are dependent on Google/Android so must adapt as Android changes. The blame really goes to the hardware manufacturers who chose not to include important sensors to save money.

The problem with losing this screen, for me, is that it also displays my current lat/long and the cache's lat/long, side by side. These values are not dependent on having a compass sensor, but for some reason the app now denies me the ability to see them because my phone lacks unrelated hardware.

I've just been directed to this topic thread by one of our New Zealand retired reviewers. I too feel a bit paralysed in both my searching and my hiding. I hadn't updated the app in a while, so only lost my compass about 6 weeks ago. If I'd known I wouldn't have updated. I used that view quite often. Looks like I'll have to buy a new phone.

Just bought a tablet. For geocaching this summer . Then loaded geocaching program but they changed to needing magnetic sensors , compass not working. Being retired can not afford the EXPENSIVE tablets with magnetic sensors.none of my other devices have the magnetic sensors either. They are going to eliminate a lot of people from the hobby, unless someone know's another third party program or work around to use GPS sats to use compass. Longtime member. Help appreciated always used compass especially to zero in.

I have never used the compass on my GPS's, I always look at the map. I guess the arrow will point to the cache when you're moving so you could always use the compass that way. There are other apps you could use if the GS app doesn't do what you want.

They are going to eliminate a lot of people from the hobby, unless someone know's... a work around to use GPS sats to use compass. Longtime member. Help appreciated always used compass especially to zero in.

Look at Locus Maps, which can use GPS for compass direction if the magnetic sensor is not available. It has Geocaching features to load caches and Pocket Queries. There are also GPS Sat compass Apps, but I wouldn't recommend one that requires loading cache coordinates from other Apps.

The GPS compass is of course not affected by the magnetic interference of a car or whatever, and doesn't need to be calibrated. That's cool. The uncool thing is that you must be moving in a consistent direction and at enough speed for the device to calculate the compass needle. But if you were fine with that previously, an App that has a "GPS compass" feature is the way to go.

I have an Etrex20x and almost always use the compass. I also have a Motorola G4 with official app and on the rare occasion I've used it I have it on the map because I never thought to set it to compass. So today, after reading through the previous posts, I fired it up and found there is a compass button on the map screen I had never noticed before. So, I pressed the compass button and I saw this message "This device does not have a compass Use the map to navigate to geocaches". Now I feel like I'm missing out on something that I had previously never missed. Dadgum it.?

My phone does have a magnetometer; however, I wonder if many of the COs where I cache have their GPSrs set to True North when determining placement coordinates. (I do, because (unless otherwise instructed), required projections (around here) seem to be based on True North.) Perhaps this is why I have rarely found my phone compass to be of much use, except in getting to the general area?

I wonder if many of the COs where I cache have their GPSrs set to True North when determining placement coordinates. (I do, because (unless otherwise instructed), required projections (around here) seem to be based on True North.) Perhaps this is why I have rarely found my phone compass to be of much use, except in getting to the general area?

I just installed the android Groundspeak caching app. I'm using an old HTC Desire 626 phone. The specs on GSM Arena says i have Sensors: Accelerometer, proximity, compass. I get the same "compass not available" message. Looked through all the settings including developer options.No mention of an option to turn the compass off.

You will also need to disable automatic updates on your android device, so a newer version of the Geocaching App does not get installed automatically. This means you will need to regularly visit the Play Store to manually update other apps on your device. ff782bc1db

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