New Zealander James Zingel recognised his mother’s concern over his grandmother’s well-being, and decided to do something about it. For the Bay of Plenty Science Fair, the 14-year-old Bethlehem College student designed and built ‘Gran Check’, a Raspberry Pi-powered monitor that uses a PIR sensor to recognise his gran’s movement as she feeds her dogs, taking a photograph every morning to email back to his mother

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Gran Check