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 ...

Schematic of Arduino PWM LED Controller Circuit. Advertisement. Arduino Sketch. Advertisement. Partner Content. Power your devices through universal USB-C 48 V rail, Hynetek brings new USB PD3.2 DRP ...

My setup is a relay on the 240V line, a programmed temp swing of 5deg, and cool down period of 5 minutes after ac shutdown before it can turn on again to avoid damaging the compressor.

This setup allowed [Alex] to control all 128 LED’s with just seven bits, but it was too slow for him. His solution was to control the multiplexers with counter IC’s. The Arduino can just ...

This process, often considered the “hello world” of IoT applications, enables users to control relays, monitor digital inputs, and visualize real-time and historical data. Raspberry Pi GPIO ...