Sketching in Hardware is an annual event and a community focused on the design of tools for design with and of digital hardware. Over the course of three days we discuss how to develop these tools, how to make them better, how to use them, what makes them valuable, how to increase access to them, and how to teach with them. Past attendees have included senior people from Arduino, LEGO, Microsoft, UC Berkeley, Stanford, Seeed Studio, MIT, the California College of the Arts, NYU, Apple, and many others.