d3vices

E-02Battery Status API

Battery test

Read your battery status: charge level, whether it is charging, and the charging or discharging time the browser estimates. Updates live as the state changes.

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Permissions

None. This test needs no browser permission at all.

Nearby instruments

E-01

Network test

Latency, jitter, download and upload measured against a real endpoint, plus what the browser reports.

E-03

Location test

Latitude, longitude, accuracy, altitude, heading and speed, watched live as the fix improves.

E-04

Motion sensor test

Gyroscope, accelerometer and compass, with a live 3D orientation cube.

E-05

Ambient light test

Read the ambient light sensor in lux, where the browser exposes one.

A-01

Microphone test

Check that your mic is heard, see a live waveform, watch the input level and record a short clip to play back.

A-02

Speaker test

Play a tone through the left and right channel independently, sweep the audible range and check for a blown driver.