It is a pretty common first project to use an Arduino (or similar) to blink an LED. Which, of course, brings taunts of: you could have used a 555! You can, of course, also use any sort of oscillato… ...

The LED segments of the display require current-limiting resistors when powered from a 5 V logic pin. The value of the resistor is typically between 330 and 470 ohms. And, driver transistors are ...

This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is ... Just follow the schematic circuit diagram to make the entire project. Arduino ...

A Light Emitting Diode (LED) should light up once the Arduino has power and after a second or so, an LED on the board should start slowly blinking. The image below points out these LEDs on the board.

Blink does one thing — it blinks a built-in LED on the Arduino. There's a description of the sample in the comment at the top of the editor window and online. In code, comments are notes ...

The Arduino Micro is closely related to the Leonardo, with some small difference. Each led in both is connected in series with a 1kΩ resistor to limit current. One Leonard-Micro difference is with the ...

Instructables user vatosupreme created the effect in the above video by constructing the eyes using ping-pong balls, LEDs, and wooden poles and connecting those LEDs to a control board built with ...