For simple circuits, it’s easy enough to grab a breadboard and start putting it together. Breadboards make it easy to check your circuit for mistakes before soldering together a finished product.

In the optical devices such as optocouplers. As on-off indicator in various types of electronic circuits. Some LED’s radiate infrared light which is invisible. But such LED’s are useful in remote ...

Here is a great collection of touch switch circuits. A touch switch is an electronic device that enables us to control a circuit by simply touching a sensor. Simple touch switch circuit with 4011 – ...

[pighixxx]’s diagrams are simple, easy to understand, easy to use, and pretty to boot. There is a planned online counterpart to the book, with further elaborations of all of the circuit setups.

The Flex Circuit Design Kit offers tools and information to assist designers from inception to physical mockup in integrating different types of flex circuits into their projects. The Flex Circuit ...