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 ...

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 ... I love all about electronics, circuit diagrams and crazy ...

In myOpenLab your device will consist of two parts: a diagram and a ... to drive pin 13 of my Arduino (the LED built into the board). The net effect is the LED will blink unless you turn the ...

End Update Here is ‘blink’ modified to work TXLED and RXLED as well as LED-BUILTIN int RXLED = 17; // The RX LED has a defined Arduino pin int TXLED = 30; // The TX LED has a defined Arduino pin // ...

It is a combination of 8 LEDs (the decimal point -DP- is the 8th), which can be arranged so that different combinations can be used to make numerical digits. Just follow the schematic circuit diagram ...