Tag Archives: MAX7219

Moving message display using arduino

Matrix Display Interface with MAX7219

The MAX7219 LED driver saves microcontroller pins and processing time. It uses only three IO pins of an Arduino.  It is easy to connect multiple displays by connecting DIN and DOUT pins.

Using a single MAX7219 you can drive 64 LEDs while you only need 4 wires to interface it to a microcontroller. In addition you can daisy chain multiple MAX7219 chips for bigger displays. Continue reading Moving message display using arduino

MAX7219 7-segment display-Arduino

MAX7219 Display Driver

The MAX7219/MAX7221 are compact, serial input/output common-cathode display drivers that interface microprocessors to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8×8 static RAM that stores each Continue reading MAX7219 7-segment display-Arduino