LEDs continue to dramatically transform signage and lighting. However, often LED displays today are 8×8 and cannot communicate many international alpha-numeric characters. MAXREFDES99# integrates four ...

The algorithm in this microcontroller design drives an LED matrix and provides digital-voltage-readout and bar-like dot displays, showing dots for a graphical output if the input value is changing ...

The killer feature for me, though, is the dot-matrix LED display. It's a reverse-engineered clone of a 1980s Plessey GPD340, made by the same person who created the EMES.