Walmart will be putting millions of sensors on its pallets across its supply chain, in a move that technology partner Wiliot is calling “the first large-scale deployment of ambient Internet of Things (IoT)” sensors in the retail industry. Most Read from Fast Company The technology is currently deployed in 500 Walmart locations, and the retail giant plans to expand nationwide in 2026. The ambient IoT sensors are battery-free and operate by harvesting energy from sources such as radio waves, light, motion, ...