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 ...

Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...

Attach SEEED relay shield v2.1 Load Arduino Uno with include ino Attach BMP180 sensor to Arduino (3.3V to VCC, GND to GND, SCL to A5, SDA to A4) Connect basic button to GND and D2 and LED to GND and ...

After wiring up each outlet so it can be controlled independently, he set out designing a four port relay board. This was a pretty simple build – four 10 Amp relays and a few terminal blocks.

Relay control in real time using arduino and RTC. Used in Fishtank lighting, Plant irrigation. Time values specified in structure ON - OFF sequence. Also manually can override ON/OFF sequence using ...