Mobilefish.com - Arduino abbreviations and definitions.
File:Power and Pin13 LED on Arduino Compatible Board.jpg - Wikipedia
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Arduino UNO R3 pin 13 LED always stays on - Installation & Troubleshooting - Arduino Forum
Blink an LED With Arduino in Tinkercad : 6 Steps (with Pictures) - Instructables
Bad Tutorial? Connect an LED directly to pin 13 without resistor? - Website and Forum - Arduino Forum
Arduino Uno: LED on pin 13 | Arduino, Arduino projects, Arduino led
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Blink | Arduino Documentation
nano pin 13 out - Programming Questions - Arduino Forum
The 'L' LED | Arduino Lesson 1. Blink | Adafruit Learning System
JavaScript Robotics: LED with Johnny-Five
LED BLINKING USING ARDUINO NANO - Instructables
How to Control LEDs on the Arduino - Circuit Basics
Arduino LED - Complete Tutorial - The Robotics Back-End
arduino - Pin 13: Do I need a Resistor? - Electrical Engineering Stack Exchange
