Sensors Playground is a hardware diagnostics dashboard that surfaces the sensors and capabilities of your device. Each panel probes a real piece of hardware through a standard web API and shows a live readout, so you can see — and feel — exactly what your device exposes.
How it works. The dashboard is a grid of independent "diagnostic cards", each wired to a browser API and updating live from that hardware's own events rather than constant polling. The motion card is the centrepiece: it listens to the device's orientation and motion sensors and feeds the readings into a small hand-written 3D cube that tilts and turns in real time to mirror how you're holding the device, idly auto-rotating when no sensor data is coming in. Where a given browser or device lacks a sensor, that card simply reports n/a instead of breaking. Because motion sensors and the camera are privacy-sensitive, they require a secure connection and, on some devices, a tap to grant permission.
What you can explore:
- Motion & orientation — live accelerometer and orientation values driving the 3D cube; tap the card to start sampling (and grant permission where prompted).
- Battery — charge level, charging state and estimated time to full or empty.
- Network— a live preview to confirm the network works.
- Vibration & rumble — fire Light, Pulse, Ocean Wave and Heavy Burst haptic patterns, with animated bars showing the waveform.
- Display & storage — screen orientation, connection type and online status, plus how much storage the app can use.
Originally a Nintendo Switch demo, ported so each native call maps to its web equivalent — a handy tool for checking what a browser really exposes.