MEC101 Fall 2020 Robot Design Project website is live!
An open-source program called Fritzing, which makes use of a nicely illustrated parts library to give the user a visual feel for how the circuit will look, as well as a proper schematic for each project. Download Fritzing at http://fritzing.org/
A simple step by step tutorial on building a circuit: http://fritzing.org/building-circuit/
Learn to program for Arduino along side Fritzing by watching videos at their youtube channel.
Another schematic drawing freeware software is ExpressSCH from ExpressPCB.
Multisim from National Instruments lets you not only design a circuit, but also lets you simulate its behavior. Alas, it's not free.
Electronic Tutorial Videos at
http://www.afrotechmods.com/tutorials/
Online Electronics Tutorials at