Below is a work in progress shot from my ‘Alternative Displays’ project, it’s a 4 x 4 grid of square electromagnets. These are controlled by an Arduino and a Djuicer (a custom circuit designed especially for the workshop by 1scale1). A framed sheet of perspex goes on top of these and it contains a layer of industrial printer toner. When the magnets are switched on the the metal fibres stand up and you see a ‘pixel’ in the dust. Thanks to Mattias, Tony and David at 1scale1 for all their help making this. Next step is to have custom animations appear in the dust and have it respond to some external inputs.