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.

Connect the relay module to Arduino: VCC to 5V GND to GND IN1 to Digital Pin 2 IN2 to Digital Pin 3 IN3 to Digital Pin 4 IN4 to Digital Pin 5 IN5 to Digital Pin 6 IN6 to Digital Pin 7 IN7 to Digital ...

Summary: This setup and code are designed to monitor power status and use the SIM800H module to send SMS alerts in case of a power outage or restoration. The hardware connections are straightforward, ...

Someone has invented a way to add Wi-Fi to a standard Arduino Uno, by proposing a module that drops into the DIL socket normally reserved for the ATmega328 – it will not work with Unos that have a ...

Arduino have launched an upgrade to their 8-bit Arduino UNO R3 board with the Arduino UNO R4 featuring a 48 MHz Renesas RA4M1 Arm Cortex-M4F 32-bit microcontroller, and an optional ESP32-S3 module 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 ...

Released over 10 years ago, Arduino UNO is still the best-selling Arduino board, but lacking WiFi in the IoT era is not ideal, so Gianluca Martino, Arduino co-founder and working with the company ...