EBT Compass

Description

EBT Compass is a compass and GPS app for Android devices.

EBT Compass

The compass points to true north (adjusted with the current magnetic declination).

Key Features:

• Display compass heading, latitude, longitude, altitude, direction, and speed
• Display current location as Latitude/Longitude and UTM (Universal Transverse Mercator)
• Go to a specific point
• Go along a given heading (e.g. North). Your device will speak or vibrate to help you course-correct. Ideal for archaeological surveys!
• Share location
• Save locations
• Direct the user to previously-saved locations
• Display points and property boundaries on a map
• Share saved locations with other apps (spreadsheets, etc)
• Customize update frequency of magnetometer, gyroscope, and GPS updates
• Display sensor accuracy (magnetometer & gyroscope)
• Level indicator for maximum compass accuracy
• UTM coordinates are in WGS84/NAD83 format
• Minimal battery use
• Open source
• Free. No ads!

Accuracy

In order to get the most accurate results:

• Ensure that your device is not near anything magnetic. This includes cases with magnetic clasps!
• Ensure that your device is level with the ground. In other words, make sure the blue disk is in the center of the white disk (see screenshot, above).
• Calibrate your device before each use, even if the reported accuracy is High/High. To calibrate, move your device rapidly in figure-8 patterns multiple times. Calibration tends to improve the accuracy of the magnetometer and gyroscope. It has no effect on the GPS.

Go to a Point

To find a given location, click "To Point". Specify the desired latitude and longitude or UTM coordinates and press "GO".

Go to a Point

...then move in the direction of the red dot on the compass. The app will let you know when you get within 10 meters of your destination.

Go to a Point

Go in a Line

To move in a given direction, click "LINE". Specify the desired heading and press "GO". Move towards the red dot on the compass.

When you drift off course the app will speak or vibrate to get you back on track:

1. one vibration: turn right
2. two vibrations: turn left

Note: There is no need to keep your device flat, since the app determines your direction from the GPS, not from the magnetometer and gyroscope. You can even put your device in your pocket as you walk.

The compass must be "ON" in order to use this feature.

Go in a Line

Save Point

Click "Save Point" to save the current location as a named point. You can optionally change the latitude and/or longitude before saving:

Save Point

Points

Once points have been saved, you can find them with the compass or display them on a map:

Points

It's good to categorize points by color, since they are sorted by color in the above list.

Property Boundaries

To draw lines on a map (for example, to specify property boundaries), save each vertex of the property as a point. For each vertex, specify the next vertex by choosing a "Draw Line to" point.

For example, the above screenshot specifies one of the lines for a property boundary ("House F40 A" to "House F40 B").

Property Boundaries

Share Points

You can share your saved points with other applications:

Share Points

Click "Save Point" to save the current location as a named point:

Importing Points

You can import points as follows:

Import Points: Step 1

Go to an app that has csv (comma-separated value) data in the same format as the Share Points feature:

Import Points: Step 1

Import Points: Step 2

Long-click the csv text. Select "Select all". Then select "Share". Finally, click the EBT Compass icon:

Import Points: Step 2

Import Points: Step 3

Once the points are imported, the imported points will be displayed:

Import Points: Step 3

Note: imported points are added to the existing points. If an imported point has the same name as an existing point, it will replace the existing point.

Share Location

When the compass is "ON", you can press the share icon to share your location. This is an easy way to send your location via email, text message, etc.

Share Location

Settings

Press "SETTINGS" to:

1. Specify distance and speed units (metric/English)
2. Specify location format (Latitude/Longitude or UTM)
3. Change the speed of magnetometer or gyroscope updates
4. Change the frequency of course-correcting notifications
5. Change the type of course-correcting notifications: speech or vibration
6. Change the type of arrival notifications: speech or vibration

Settings

Download from Google Play