From a simple electronic toothbrush to complicated robotics systems, DC motors are present everywhere. In most of our previous Arduino projects, we have used these DC motors as actuators and ...

A teacher I know is stuck, with only npn transistors in the supply cupboard and the need to create a reversible motor drive for an Arduino project. Reversing ‘bridges’ have four switches (relay ...

Motors and transistors are very common electronic components. This article aims to provide some of the basics, along with a working code example, circuits and ...

The relay is driven using an NPN transistor (BC547), which allows a small control signal to safely switch a relay. This makes it possible to control electrical devices such as lamps, motors, or ...

Arduinoでトランジスタを活用する方法はいくつかありますが、主にトランジスタはスイッチやアンプとして使われます。ここでは、スイッチとしての使用例に焦点を当てて説明します。これは、Arduinoのデジタル出力の電流が不足している場合に、より大きな ...

Based on the knowledge developed in the previous tutorials, we now start the study of this important electronic component. We have thus created a PNP transistor. Figure 1: A PNP transistor. The size ...