MAX7219 Cascaded 4-in-1 Dot Matrix Module - 32x8 Display cp2102 with Eight opto-isolated

with Eight opto-isolated

NFC is a perfect option

Product Sensor style Standout Ultrasonic Ranging Waterproof Integrated Module JSN B02 V2

and Readouts

MAX7219 Cascaded 4-in-1 Dot Matrix Module - 32x8 Display cp2102 with Eight opto-isolatedBuild Scrolling Text and Pixel Effects with Dot Matrix Cascaded MAX7219 Module The Dot Matrix Cascaded MAX7219 Module is made for visual effects, counters, symbols, pixel graphics, and animated display projects. It is useful when you want more visual freedom than a single LED or simple segment display. LED matrix modules are a great fit for signs, dashboards, score displays, and animation work. They can also add a fun visual layer to classroom demos