Well, I must admit to being flabbergasted. I think I can say without fear of contradiction that my “flabber” has rarely been so “gasted.” The cause of my current state-of-gast was the rapturously ...

[Rajendra] got tired of building the same basic circuits time and again on the breadboard. He decided to build some simple, modular circuits on protoboard and make them easy to interface with the ...

In what follows, we will refer to these collections as “Breadboards,” “Tools,” and “Components” for short. For example, when working with semiconductors such as transistors, diodes (including ...

The circuit in Figure 1 uses only five I/O lines to drive a dot- or bar-graph display of 20 LEDs. Although this version of the design uses a small and inexpensive one-time-programmable microprocessor, ...

I breadboarded a microphone pre-amplifier circuit and it worked well until I added a circuit that used the audio output to drive an LED bar-graph display. Now, as the LEDs turned on or off, I could ...