* Transistor: 3 * Transformer(220v to 12v): 1 * Diode ‌bridge(Diode: 4): 1 * Capacitor(i use 16v 3300uF): 1 * Regulator 7812: 1 * Triac: 1 * Arduino(i use Arduino UNO): 1 Open Arduino-IDE and at the ...

In this tutorial, I will show you how to control the brightness of an LED or the speed of a DC fan using an Arduino board, a BC547 transistor, and a potentiometer. Follow along for a step-by-step ...

A transistor curve tracer will tell you a transistor's electrical parameters if you know which pin to connect to which test lead. Usually you can figure this out from reading its type number and ...

In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...

Each digital output pin on the board has a max. of 40mA of current per pin and 200mA total for all pins. If 40mA is exceeded on a single pin or the 200mA total then the microcontroller integrated ...

Arduino is probably the first thing that comes to mind for most hobbyists and students when they think about embedded systems. It has certainly gained its name among the electronics community, and in ...