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

Just follow the schematic diagram to complete the construction, and use any standard 9VDC Arduino power source to energize the system. Here, for demonstration, three different color LEDs (Red, Green ...

As you can see from that sketch and the circuit diagram, the LED is connected to the digital pin 13 of the Arduino. Once you verify (compile) the sketch and upload it to the Arduino board, you should ...

Posted in Arduino Hacks, clock hacks Tagged air quality, alarm clock, arduino, circuit diagram, dew point, humidity, perfect moment, sleep patter, source, temperature ...

PCB Direct Virtual Breadboard Creates Circuits For Arduino, RasPI, ARM And More 9:54 am January 12, 2015 By Julian Horsey ...