First lab sensor talks to Android

The first hardware-in-the-loop code I shipped, nine days after the first commit, on a science tablet with its own sensor port.

FromSensorium

Nine days after the first commit of the Sensorium tablet app, a lab sensor on the tablet's own sensor port delivered its first reading into an Android activity. The vendor SDK arrived as a binary, so the integration was a foreground service that owned the connection and a callback that every lesson screen subscribed to.

That callback shaped the app more than any design decision: every lesson after it was a screen that rendered a stream, and the sensor service outlived three tablet generations.