Yes, they’re out there—and they’re becoming pretty common in smart-city pilots. These bins usually use ultrasonic or laser fill-level sensors mounted inside the lid. When trash reaches a set threshold—say 70% or 80% full—the bin sends an alert over a low-power network such as NB-IoT or LoRa to a dashboard or mobile app used by sanitation crews. Some also track weight, temperature, or lid-open counts, and a few solar-powered models even compact waste so they hold more between pickups.
The big win is route optimization. Instead of emptying every can on a fixed schedule, crews can visit only the ones that actually need attention. That means fewer overflowing bins, less fuel burned, and fewer truck trips. In busy areas like parks, transit stops, and event districts, that can make a real difference.
One clarification: most of these cans don’t “talk” to the public. They tell the collection team, not every passerby. A few have status lights or public-facing apps, but the main communication is machine-to-dashboard. They’re not magic—sensors need maintenance, connectivity can fail, and cities still need a backup schedule—but as a practical tool for smarter urban waste management, yes, they absolutely exist.