Cylindrical Dot Matrix Display / Marble Elevator
Description
** This is a mechanical dot matrix display controlled by a single stepper motor.** Download all files from the following link, https://www.thingiverse.com/thing:5154001/zip - It can show an arbitrary bitmap of 5x24 or 12x24 resolution, mechanically - Perfect cylindrical shape - All contents are scrolled up - Used marbles (airsoft BB pellets) are automatically collected and reused - Single motor control. The motor not only elevates but also arranges ON pixels - Theoretically Scalable. Two types (tall and short) are provided. - It keeps displayed contents even if the power black out or detach from the motor ** Sample Codes ** - Simple test codes (turn on all pixels, or checkerboard pattern) - Showing fixed bitmap demo - Showing text demo (with simple font data) - (ESP32 only) Showing current day and date acquired through WiFi - (ESP32 only) Showing next agenda, synced with Google Calendar
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