This is an 18 lesson unit of work around Microbits, combining programming using the online microbit interface and electronic components. The components I used were sourced from http://microbit-accessories.co.uk but you could make your own or source from elsewhere as well. Helpsheets are provided for each of the electronic components. The students each have a workbook for the whole unit divided into sections that can be easily marked by the teacher, with opportunity/space for student reflection and response.Students start off learning about microbit theory, i.e. safe handling (static) and polarity, inputs, outputs and programming structures IF statements and loops. They then need to design the "next big thing" - a device that solves a problem, using the microbit. They will need to produce a design brief and circuit diagram. Once they have built it, there is a lesson on gathering user feedback and evaluation. At the end of the unit, they have the opportunity to create a business pitch for their new device. This is a great end to the unit as each student/group gets to share their creation to the rest of the class, with prizes for the best entries (at teacher's discretion!)The course mainly links towards the D&T criteria (with reference to the relevant criteria at the end of each powerpoint) but could be used in Computing as well.