You can use an external one or use the one soldered on the board (pin 13). Turn ON an LED Sketch This is a very simple arduino project where a led is turned on by setting the pin 13 as output, then ...

At first glance, an Arduino library for LED control might ... #include <jled.h> // connect LED to pin 13 (PWM capable). LED will breathe with period of // 2000ms and a delay of 1000ms after ...

As described on the Hackster Profar blog, as features go, the Shield sports a reset switch, power LED, Arduino pin 13 LED, Pi GPIO pin 13 LED, headers for full Arduino pin access, and ICSP header for ...

LED_BUILTIN is defined as "13" in pins_arduino.h: #define LED_BUILTIN 13 This indicates digital pin 13 on the Arduino's pins connector (also called a header). But at the same time LED_BUILTIN ...

This snippet of Hello World code lets [Nico Ritschel] turn the Pin 13 LED on his Arduino on and off using Siri, the voice-activated helper built into iPhones. The trick here is using the Ruby ...

Over on the Instructables website an awesome pair of smart glasses that are Arduino-based have been featured, that have been developed by Jordan Fung a 13-year ... and an LED indicator that ...

You will need the Arduino Board, a 560Ω resistor, and LED and the code example below. We set the pinButton variable as integer 8 and we connect the button at pin 8 on the Board. Then the LED is ...