Our hacker [Avi Gupta] has sent in their submission for the One Hertz Challenge: the LoRaSense RGB Pi HAT. This “HAT” (Hardware Attached to Top) is for any Raspberry Pi with 40-pin ...

While child-sized humanoid robots like the Unitree R1 have come down in price, not everybody has a spare $6,000 to throw ...

In this work, we, for the first time, propose a quartz crystal microbalance (QCM) humidity sensor that is prepared by a one-step method based on pencil drawing. The scanning electron microscopy (SEM), ...

In this study, we demonstrate fabrication of an evanescent wave fiber optic humidity sensor based on PEG-PMMA microsphere film as moisture-sensitive material. A three dimensional stacking structure of ...