The slide

Some things in a museum you look at. This one you go down.

Every ride counts: the slide notices you, and the light runs off along the threads to the climate cube, like your ride was a little bit of energy for the city.

1. An ESP32 sensor watches the end of the slide ten times a second.
2. It only counts a ride when it really looks like one: someone arrives, stays at least a moment, and the slide is clear again afterwards.
3. Each ride sends pulses of light along the threads, flashes the cloud and makes a bird sing in the climate corner.

• The thresholds were set from the sensor’s own logs, with a gap between “here” and “gone”, so a kid who sits up halfway doesn’t count twice.
• A ride has to last between two and twenty seconds. Anything else is someone leaning on it.