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.

An Arduino drives the switch-mode power supply, ... The sketch includes the ability to alter the lighting schedule and other variables by sending serial commands through a USB connection.

There have been a couple attempts to break out Arduino to the command line, but most failed to get wide support. ... Finally, make sure your user can access serial- and USB-connected Arduino devboards ...

Arduino Serial Servo Control Keys:'(s)lower' or '(f)aster', spacebar to center and o to stop Pressing the keys to the servo should produce the desired behavior. ... See the "Command-Line Arduino ...

A GPS unit and a Bluetooth-to-serial were tying up all the hardware UARTs on an AVR Arduino project. “Software serial”, I hear you say. ... Maybe a debug channel, a command channel, ...