The competition is now in its sixth year and showed its reach with more than 100 schools entering, all of them using the Raspberry Pi as the engine for their ideas.

The imaginative entries – demoed on the day to the judges at the IET – included Raspberry-Sky, to monitor air pollution by decoding aircraft ADB-S data (using “dump1090“) and crowd-sourcing the results; Smart Bin, which uses the Clarifai AI system to categorise images via the Cloud (AWS); and Recycle Michael, another smart bin, which interfaced a bar-code scanner to a Pi to identify the materials being thrown away…