I had started the project for a specific need, but it became clear to me that this could be a multipurpose imaging system that anyone can assemble and use at home or school.” The setup gave surprisingly good image quality, for not only beauty pictures of chips but also for examining features with dimensions of a few micrometers, and even as a digital goniometer for measuring contact angles. This time, I designed a board measuring 18 by 18 mm and featuring an ATtiny84 microcontroller and a DRV8834 stepper-motor driver. “I often design my own Arduino boards for a more compact implementation. With a bit of 3D printing, some six miniature stepper motors with gearboxes and Arduino capabilities, he made his progress. Build a fully-functional microscope using LEGO, 3D printing, Arduinos, and a Raspberry Pi: /lLURG2qYiD
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