Discover ways to utilize switches and simple controls. From thermostats, and relays to circuit boards, a variety of control systems range from the simple to the incredibly complex. Understanding the basics of how these systems operate helps us be more resilient by becoming better practitioners of sensible technology. Learn a new set of tools and the vocabulary for understanding the world of controls and gain an introductory knowledge to some very common components and how they fit into a complete controls system. Learn some basic electrical safety, use of a multimeter, troubleshooting and discuss designs for practical farm applications.