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 ...

Refer below Arduino-SSD1306-OLED Interfacing Basic project and Tutorials- Visit for simillar projects at https://microdigisoft.com Tutorial 1: Interfacing SSD1306 ...