It's a full-color alternative (well, six-color, but more on that later), packing eight additional GPIO pins, three separate buttons, a temperature and humidity sensor, and even support for a micro SD ...

Abstract: This paper describes a low-cost fiber optical temperature sensor technology with wide operation temperature ranges and immune to complex electromagnetic environments. Using a low-cost ...

Abstract: A dual-FBG and F-P cavity compound optical fiber sensor based on a multi-core fiber (MCF) is proposed. A hollow core fiber (HCF) was fused between a single-mode fiber (SMF) and a MCF to form ...

School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China ...