Most circuits comprise of several simple sub-circuits that perform discrete functions. By interconnecting these simple circuits, we can build complex circuits capable of performing complex functions. In this section, we show you how to design and build different circuits that perform specific functions and how to build complex circuits by interconnecting these simple sub-circuits.
RFID Access Control System with two-factor authentication via SMS
A complete RFID access control system with two factor authentication using an RFID module, GSM module, Keypad, LCD module and other components. User friendly software allows you manage up to 15 cards.
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Working with 555 Timer
The 555 timer is a popular and versatile integrated circuit. Learn how to use the 555 timer integrated circuit and integrate it into your next project.
