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On this page
  • Description
  • Adding a Magnetometer to your app
  • Change Settings of Magnetometer
  • Properties
  • Blocks
  • Events
  • Properties

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  1. Blocks
  2. App Features Blocks
  3. Sensors Blocks

Magnetometer

PreviousGyroscopeNextAccelerometer

Last updated 3 months ago

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Description

The magnetometer is used to measure magnetic flux density. This is the total magnetic field passing through a given area, per metre squared, T⋅m2m2\frac{T \cdot m^2}{m^2}m2T⋅m2​ . The sensor will returns values with units of microtesla μT\mu TμT for each of the three coordinate axes; x, y and, z. The magnetic flux density is quite similar to magnetic field strength.

Adding a Magnetometer to your app

To add a Magnetometer to your app:

  1. Navigate to the Blocks tab of your project.

  2. Under the App Features heading, locate Sensors.

  3. Click the ⊕ symbol next to Sensor.

  4. Select Magnetometer from the provided menu.

  5. Click Add.

You will see a settings panel where you can set:

  • The Name of the Magnetometer

  • Whether the Magnetometer is Enabled

You can either confirm your choices and create the Magnetometer, or delete the Magnetometer.

Change Settings of Magnetometer

‌You will see the sensors you have added to your app underneath the Sensors section of your blocks.

If you click on the ⚙ icon next to your Magnetometer, you will be able to edit its settings as seen in the panels above. You can click on your Magnetometer's name to access its drawer of blocks.‌

Properties

Property
Description
Data Type

Enabled

Toggle whether the component is functioning in your app

True/False

Blocks

Events

When Magnetometer Changes

When the magnetometer detects a change in the ambient magnetic field the Changes event will fire. The event returns 4 parameters that we can work with.

Parameter
Type
Returns

xFluxDensity

Number

yFluxDensity

Number

zFluxDensity

Number

error

String

Error message from the Sensor

Properties

Enabled

The magnetometer is, by default, turned on, but the enabled property can be used to turn in on and off by setting it to true or false respectively.

Property
Type
Default

set Enabled

Bool

true

get Enabled

Bool

Flux density, in the x direction, expressed in

Flux density, in the y direction, expressed in

Flux density, in the z direction, expressed in

🛠️
μT\mu TμT
μT\mu TμT
μT\mu TμT