Category Archives: Components

The EBCs of BJTs

Posted on 2014-11-30 by M. Eric Carr

Bipolar Junction transistors (BJTs — NPN and PNP types) are inexpensive, reliable, relatively easy to use, and very useful. Here’s how they are used. Continue reading →

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Components: Servos

Posted on 2014-10-31 by M. Eric Carr

Servo motors are useful devices. Here’s how to drive them using a microcontroller or similar device. Continue reading →

Posted in Components, Digital, Electronics, HOW-TO, Robotics | Leave a comment

Components: LEDs

Posted on 2014-05-30 by M. Eric Carr

LEDs are useful devices. They require a bit more thought to use than indicator lamps, but are very versatile and efficient. Continue reading →

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A Method To The Madness

Posted on 2013-09-05 by M. Eric Carr

Why the values chosen for 5% resistor values (1k, 470 ohms, 2.2k, etc.) are the way they are. Continue reading →

Posted in Analog, Components, EET201, Electronics, Math | Leave a comment