See Yourself – or 2Pac! – on Yet Another Pixel Globe @hackaday



Our system consisted of a 60-pixel LED strip mounted on an acrylic ring, which was lined with a 60-pixel LED strip running an array of LED pixels. Its bottom is mounted to a 6V DC motor with an encoder which uses a Hall-effect sensor to accurately determine its position. The motor’s rotational velocity is set to 500 rpm. A 6-wire slip ring from Adafruit allowed us to connect the LED power, clock, and data lines from a stationary frame to the rotating acrylic ring.

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Adafruit DotStar Digital LED Strip – Black 144 LED/m – 0.5 Meter – BLACK: Move over NeoPixels, there’s a new LED strip in town! These fancy new DotStar LED strips are a great upgrade for people who have loved and used NeoPixel strips for a few years but want something even better. DotStar LEDs use generic 2-wire SPI, so you can push data much faster than with the NeoPixel 800 KHz protocol and there’s no specific timing required. They also have much higher PWM refresh rates, so you can do Persistence-of-Vision (POV) and have less flickering, particularly at low brightness levels. Read more.

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