The Pyros-3GT2-DWB from Farsens S.L., San Sebastián, Spain, is a battery free RFID sensor tag capable of transmitting a unique identifier and the associated temperature measurement data to a ...

The first lithium-ion battery has been developed that shuts down before overheating, then restarts immediately when the temperature cools. The new technology could prevent the kind of fires that have ...

One of the things that researchers and designers hope to achieve are sensors that can gather power from their environment rather than needing a battery. Batteries eventually run down requiring ...

Great hope has been invested in the technology of electric vehicles (EVs): it is expected to reduce greenhouse gas (GHG) emissions, promote sustainable energy development and improve air quality in ...

Tired of condensation wrecking your shed tools or greenhouse gear? I built a no-frills ESP32 + DHT22 node that wakes every 15 minutes, grabs temp/humidity data, beams it over Wi-Fi, and sleeps—running ...