In this article I will add some simple Arduino LED projects starting with basic ones like how to turn on an LED, blinking, and more. Every step will have the code, the schematic, photos of the project ...

pinMode(LED_BUILTIN, OUTPUT); Both LED_BUILTIN and OUTPUT are #defines defined by Arduino headers. The main Arduino header file is named Arduino.h, as we saw above.

Individual LED lights are common in Arduino projects because they offer proof a circuit works. Soldering iron and solder ($9.95): A soldering iron is used to create new and permanent connections ...

There are so many nice hacks in [Joekutz]’s retro LED display project that it’s hard to know where to start. There’s his DIY LED display controlled by an Arduino UNO. To have some text or ...

Here's the new description with all links and additional text removed: Making a good lighting system for your rc projects is ...

Recall the last time you tried to dim an LED using pulse width modulation. I am sure you have experienced the relationship between the duty cycle and the perceived brightness is not linear at all. The ...

When you read “Arduino wristwatch”, you fall into the trap of envisioning an Arduino UNO clumsily strapped to someone’s wrist. [Marijo Blažević’s] creation is much more poli… ...

Do this before you sew anything onto your sweater just to make sure the LED string will correctly fit the pattern you drew. Start with the end of the string so the Arduino ends up at the bottom of ...