This expandable LED display for a microcontroller in Figure 1 has a simple interface with only 6 data/control wires and can be easily accommodated to a DIY design. The display has static indication.

Recent DIY trends show makers increasingly turning to ESP32 microcontrollers and Arduino platforms for smart home projects, replacing costlier or overpowered setups like Raspberry Pi in many cases.

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Have you ever looked at a clock and thought, “This could be so much more than just a way to tell time”? Imagine a timepiece that doubles as a modern art installation, a glowing hexagonal masterpiece ...