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Turning a Truck into a Dot Matrix Printer

For most people, a dot matrix printer is an ancient technology from the last millennium that used tiny dots of ink to print letters and images on paper. But what if you could turn a truck into a dot matrix printer to print on a road? That would be neat! Ryder used his truck, a Raspberry Pi, and drops of water instead of messy ink. The result is amazingly good.

Video: https://www.youtube.com/embed/WKIs_u5jr1s

Source: https://makezine.com/article/maker-news/turning-a-truck-into-a-giant-dot-matrix-printer/