Detailed Links below (Circuit Building, Arduino)

https://www.instructables.com/id/Digital-Input-With-a-Pushbutton-With-Arduino-in-Ti/

https://www.tinkercad.com/things/iNC14CpnZwi?utm_source=externalsite&utm_medium=embedver1&utm_campaign=embed

https://www.instructables.com/id/Arduino-Potentiometer-Analog-Input-Tinkercad/

https://www.tinkercad.com/things/kOlAjzGmfhO?utm_source=externalsite&utm_medium=embedver1&utm_campaign=embed

https://www.instructables.com/id/Ultrasonic-Distance-Sensor-Arduino-Tinkercad/

https://www.tinkercad.com/things/j0k4YgzXoDF-ultrasonic-distance-sensor-led-bar-graph-blocks

https://create.arduino.cc/projecthub/shiven2612/operating-servo-motor-through-arduino-on-online-simulator-fe9158

https://www.tinkercad.com/learn/project-gallery;collectionId=OIYJ88OJ3OPN3EA

Electric Circuit -Types of Electric Circuit

https://phet.colorado.edu/en/simulation/circuit-construction-kit-dc