In this activity students will learn about importance of and use Ohm’s law to calculate the value of a protective resistor for an LED. Using a BBC micro:bit, they will develop a prototype for an LED based automatic home lighting system, designed to save energy. This prototype aims to promote energy efficiency, a concern that resonates with our daily life as it’s estimated that the average UK homeowner could save up to £240 a year alone on the cost of lighting their home. This is one of a set of resources developed to aid the teaching of the secondary national curriculum, particularly KS3. This is part of our series of resources designed to support the use of the BBC micro:bit in secondary school design & technology (DT), computing and engineering lessons. It can also be used to support physics sciences lessons. Activity: Developing a prototype for an LED based automatic home lighting system In this sustainable lighting activity, students will be tasked with creating a smart lighting system that adjusts based on environmental conditions. The engineering context Engineers are often required to program devices to perform specific tasks, optimise system performance, or even create entirely new technologies. This involves understanding how to embed intelligence into products, which can range from simple household items like automatic lighting systems to more complex systems like autonomous vehicles or smart city infrastructure. By learning programming skills and understanding how to integrate them into engineering projects, students will gain an insight into how different components can work together in a system. Furthermore, resistors are essential components in electronic circuits, controlling the flow of electricity and protecting components from damage by limiting the current. Understanding Ohm’s law and resistor calculation will lay the groundwork for many aspects of electronics and electrical engineering. Suggested learning outcomes By the end of this activity, students should be able to understand and apply Ohm’s Law, particularly in calculating the value of a protective resistor for an LED. The skills they acquire will extend beyond the classroom, equipping them with practical knowledge that can be applied in real-world situations. This activity will also set a solid foundation for more complex electronic theory lessons or when delving deeper into the relationship between voltage, current, and resistance. Download our activity sheets for free! The activity sheet includes teachers’ notes, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved nations; England, Northern Ireland, Scotland and Wales. All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. Please do share your highlights with us @IETeducation

Use the BBC micro:bit programmable system to create a working prototype of a automatic lighting system This is one of a series of resources to support the use of the BBC micro:bit in Design and Technology lessons. People are always looking for ways to save energy. It is estimated that the average UK homeowner could save up to £240 a year alone on the cost of lighting their home. In this unit of learning, learners will use the BBC micro:bit to develop a prototype for an LED based automatic home lighting system, designed to save energy. Activity info, teachers’ notes and curriculum links In this activity, learners will develop their programmable lighting system using the BBC micro:bit. The activity sheet includes teachers’ notes, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved nations; England, Northern Ireland, Scotland and Wales. Download the activity sheets for free! All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. And please do share your classroom learning highlights with us @IETeducation

Guess the device from a series of clues This is one of a series of resources to support the use of the BBC micro:bit in Design and Technology lessons. People are always looking for ways to save energy. It is estimated that the average UK homeowner could save up to £240 a year alone on the cost of lighting their home. In this unit of learning, learners will use the BBC micro:bit to develop a prototype for an LED based automatic home lighting system, designed to save energy. Activity info, teachers’ notes and curriculum links This is an engaging starter activity where learners will extend their understanding of input and output devices used in the system and consolidate their learning. They will be able to develop their knowledge of components and both test themselves and their peers. The activity sheet includes teachers’ notes, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved nations; England, Northern Ireland, Scotland and Wales. Download the activity sheets for free! All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs. And please do share your classroom learning highlights with us @IETeducation