Download

Drivers

FTDI Virtual COM Port Drivers
http://www.ftdichip.com/Drivers/VCP.htm


Electronics Design Software

EAGLE Schematic and PCB Software
http://www.cadsoftusa.com/download-eagle/freeware/?language=en (EAGLE Light Edition / Freeware)

ExpressSCH and ExpressPCB
http://www.expresspcb.com/ExpressPCBHtm/Download.htm

CircuitLab (Online tool for quick schematics and simulation)
https://www.circuitlab.com/


Flowchart and Diagramming

draw.io - Online Diagramming Tool (Google Drive connected)
https://www.draw.io/