The voltages and signal timings described below are dependent on the battery voltage and are probably also impacted by temperature. While the calculator runs on a 9 V battery, internally the logic ...

There was an error while loading. Please reload this page. Password Based Door Lock Security System Using Arduino & Keypad The circuit of this project is very simple ...

Here’s something fun from [Chad Kapper] over on HackMakeMod: Escape Room Lockbox with the Cheap Yellow Display. You may have heard of the “cheap yellow display” (CYD), so-called due to the board’s ...

Abstract: For all human beings’ vision is primary requirement to survive in fast-changing environment. Scientific glasses are there to improve the eye sight of visually impaired people. But for blind ...

Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...