Arduino Microcontroller Part 2 - Digital Write

This session is a continuation of Arduino-Part 1, In this session, you will be introduced to the Tinkercad simulator for the Digital Write function.
The session begins with simulating the Arduino program using Tinkercad. The use of external LED and series Resistor at pin 12 is explained. The calculation of the Series resistance value is illustrated. The reason for using the right resistance value is explained.
The second part of the session demonstrates the physical circuit that uses a physical LED and resistor.
External LED is connected to pin 12 and a blinking circuit is demonstrated. How built-in LED at 13 can be turned off when not in use is also demonstrated.

If you are new to microcontrollers, you can start watching the Part-1 video before this.

Tinkercad circuit simulator link: https://www.tinkercad.com/things/dDNc...