Sensors
The original version of this document is located at https://docs.qfield.org/how-to/advanced-how-tos/sensors
Sensors
QField offers a range of sensor functionalities that allow you to passively collect sensor data in the background,
display the collected data, and save it into newly-digitized feature attributes.
Activating sensors
In QField, registered sensors are listed within the currently opened project file in a sub-menu that can be accessed via the “Side Dashboard” .
Workflow
- Open the “Side Dashboard”
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Tap on the 3-dotted-menu and choose “sensor”
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To toggle the passive collection of sensor data, simply click on a sensor name in the sub-menu.
When active,a sensor icon will appear next to the sensor name, while when inactive, a dot icon will be shown.
All active sensors that are collecting data will be listed in a sensors information table located at the bottom of QField’s map canvas.
Sensor-Driven Tracking
QField enables you to initiate tracking sessions against a point layer, saving collected sensor data linked to
your current position.
Workflow
- Open the layer properties of the point layer, where the sensor data will be stored.
- Direct to the attribute form layout.
- Set the default value to *”sensor_data(‘abc’) where ‘abc’ corresponds to the name of the sensor.
- Once this configuration is done, you can start tracking your position against the point layer.
When starting the tracking session, a sensor constraint can be activated to ensure that added points occur every time a sensor has captured new data.
