Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — either via Bluetooth or Wi-Fi.

A single-channel relay is an electronic switch that can be controlled by a low-power electrical signal, such as the output from an Arduino microcontroller.By using an Arduino Uno and a single-channel ...

relay pin - pin connected to the relay. Expander is supported (see details inseparate section) button pin - pin connected to the button. There can be multiple buttons to the same relay. "<0" for ...

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. Aspencore network. ... When the button is ...

Connect each relay module to the designated pins on the Arduino: Valve Relay 1: Pin 12; Valve Relay 2: Pin 13; Water Pump Relay: Specify a digital pin (e.g., pin 8,9) Connect the VCC and GND pins of ...

Upload the UID Scan Code. After dumping the code into Arduino, it will ask you to scan the RFID Card. After scanning, you can able to see the scanned RFID card UID details in the serial monitor at the ...

The Arduino software platform is used to develop the source code. The code defines the motion sensor and relay pins, setting one as input and the other as output. The loop continuously checks for ...

Abstract: This paper aims to design a digital overcurrent relay with a characteristic of a standard inverse that can comply to the IEC standard 60255. The overcurrent relay which is used to protect ...