Drawing tablets have been a favorite computer peripheral of artists since its inception in the 1980s. If you have ever used a drawing tablet of this nature, you may have wondered, how it works, ...
Abstract: We demonstrate an apparatus for electromagnetic induction imaging (EMI) in unshielded environment based on radio frequency atomic magnetometers (AMs) in phase-lock mode. The presented ...
Password-protected door lock system using 8051 (AT89C51/P89V51RD2) with 4x4 keypad, 16x2 LCD (4-bit mode), and LED indicators. IoT door lock which is integrated directly inside the door itself.