MAX7219 LED Dot Matrix Screen Module For Arduino Raspberry Pi B/ B+ | Microsolution HallRoad Lahore

800

 

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MAX7219 LED Dot Matrix Screen Module For Arduino Raspberry Pi B/ B+ | Microsolution Lahore

MAX7219 LED Dot Matrix Screen Module For Arduino Raspberry Pi B/ B+ | Hallroad Lahore

The MAX7219/MAX7221 are compact, serial input/output common-cathode display drivers that interface microprocessors (µPs) 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 digit. Only one external resistor is required to set the segment current for all LEDs. The MAX7221 is compatible with SPI™, QSPI™, and MICROWIRE™, and has slew-rate-limited segment drivers to reduce EMI. A convenient 4-wire serial interface connects to all common µPs. Individual digits may be addressed and updated without rewriting the entire display. The MAX7219/MAX7221 also allows the user to select code decoding or no-decode for each digit. The devices include a 150µA low-power shutdown mode, analog, and digital brightness control, a scan-limit register that allows the user to display from 1 to 8 digits, and a test mode that forces all LEDs on. For applications requiring the 3V operation or segment blinking, refer to the MAX6951 data sheet.

 

Features:

  1. Support SPI interface B/B+ involved in Raspberry Pi
  2. - Driver chip: MAX 7219
  3. - Dot matrix type: 8x8 common negative red dot matrix

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