[ApprehensiveHawk6178] reports that they have made the world’s longest range LED flashlight! While technically “handheld”, you’re gonna need both hands for this monster. According to the ...

Unfortunately this example did not make me happy so I decided to convert it into a simple Arduino Library that is very easy to use from an Arduino Software IDE. It also supports Audio/Video Remote ...

The SDI12 library code is released under the GNU Lesser Public License (LGPL 2.1) -- See LICENSE-examples.md file for details. Example Arduino sketches are released under the BSD 3-Clause License -- ...

RFID technology is different from QR codes and NFC in art. QR codes are cheap, and NFC quickly gives information. But RFID is best for tracking and checking artworks. It's good for security and ...

which is used to profile interrupts or track state transitions with minimal code footprint. Both modules are shown in live demos, making it easy to understand their value. Of particular interest is ...

Abstract: Radio-frequency identification (RFID) is a wireless data capturing technique that utilizes radio frequency (RF) waves for automatic identification of objects. RFID relies on RF waves for ...

Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States Department of Chemical and Biomolecular Engineering, Vanderbilt University, ...