Figure an Arduino ... that buzzer says "current consumption: 20 mA" These piezo buzzers can be corrected directly to a DC supply. There is no need for a current-limiting R (as for an LED).

You can fade out and fade in the light of an LED automatically by using Arduino ... If delay() has a low value (for example 50ms or 0.05s) the fading speed will be higher because the Arduino will keep ...

To build this DIY buzz wire game, you'd need an Arduino Nano, a 9V battery, two LEDs (red and green), a buzzer, a seven-segment LED display, a shift register for the display, and resistors for the ...

This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push ...

Let it hit your red LED and you’ve lost ... Inside the cool laser-cut box is an Arduino Uno and a 9V battery, plus a current-limiting resistor and the all-important buzzer.

Open the Arduino IDE and load the example sketch provided in the Arduwire ... that the cable is functioning correctly, while a red LED and buzzer signal a problem such as an open circuit, short ...

Quality software development examples can be hard to ... provides an astoundingly thorough set of LED strip patterns in his comprehensive post titled Arduino LED strip effects.