I made this Arduino 8 bit binary led counter as a solution for one member from Arduino forum. ... Now lets see the schematic and how I’ve connected the 8 leds + resistors and 1 button + pull-up ...

Here is a simple Arduino Camping Light project. In this design, only one push button switch is used to control the light output (from a bunch of white LEDs) between off, dim, medium, and full ...

With all of the cool features on the Raspberry Pi, it is somewhat notable that it lacks a power button. In a simple setup, the only way to cut power to the tiny computer is to physically remove the… ...

They were not intended to be normal Arduino I/Os, but were give some commands to turn them on and off, as described in this SparkFun tutorial (actually for the Arduino Pro Micro). They are: TXLED0; ...

Build Your Own Arduino-Powered Bicycle Lights, Turn Signals, ... but electronics blogger Jenna DeBoisblanc shows off how to build a system that includes turn signals, a ...