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 ...

At points I might do something that might be dangerous because I'm comfortable with some tools or techniques but please always use your common sense and don't try everything you see here.

Project using Arduino UNO and a RFID reader module (EM-18) to control an LED and a Relay. Circuit schematic and Arduino Sketch (source code) are provided here. The reader transmits radio frequency ...

Attached to the servo horn is a slotted cylinder sized appropriately to fit the shape of the control knob. An Arduino measures ... the unit on/off via a relay connected to the 120vac line would ...

All it does is time the activation of the relays that control the gas flow, power, and wire feeder, so [Brett] decided to use an Arduino instead. The welders control circuit runs at 24V ...

There are, of course, commercial smart home options available, but if you want total control over your ... this is how your Arduino, motion sensor, and power relay should look.

In his garage, the Arduino and a set of relay systems connect to the circuits that control his sprinkler system valves. The Arduino is also connected to the Internet via Ethernet. The Android app ...

Once paired, these modules relay serial information from your smart device to ... In fact, it’s so versatile that one app we tested for this article, Bluetooth Arduino Tank Control, was made with this ...