At the most an Arduino output pin can supply 40 ... In an upcoming project we will use the transistor driver circuit and some Ardunio code to create eerie lighting effects. Until then here are ...

We will continue this series by looking at the final configuration for a transistor amplifier, the common collector amplifier or emitter follower, before examining the equivalent circuits using ...

[Fileark] built and ESC using an Arduino and has a couple of posts explaining the concept and demonstrating how it works. His test circuit uses six 2N2222 transistors to protect the Arduino from ...

You’re going to build two simple transistor circuits, each using a single transistor. These circuits will allow you to observe the operation of a transistor as an amplifier, just as Walter ...

If you are designing your own intelligent “Graden Computer” with an optional digital plant moisture sensor/water pump controller that lights an LED to alert the user when it is time to water a potted ...

They switch on with a base voltage of around 0.6V to 0.8V. Circuit diagrams often show transistors in switching circuits. For an ideal NPN transistor, the switch-on voltage at the base is ...