MAX7219

Quick Decision Notes

MAX7219 is indexed as a displays part from Analog Devices. ChipScout tracks it by practical maker-facing dimensions: interfaces, library readiness, estimated price, field-level sources, and whether the page is strong enough for selection rather than only lookup.

Technical Specifications

Interfaces and Library Support

Source Resources

Pinout Table

Pinout is not yet source-verified. Use the table as an integration checklist, then confirm exact pins against the module vendor page before wiring hardware.

Common Wiring

Arduino Example

#include <SPI.h>

const int chipSelect = 10;

void setup() {
  Serial.begin(115200);
  pinMode(chipSelect, OUTPUT);
  digitalWrite(chipSelect, HIGH);
  SPI.begin();
  Serial.println("MAX7219 SPI wiring smoke test");
}

void loop() {
  // Replace this transaction with the maintained MAX7219 driver call.
  digitalWrite(chipSelect, LOW);
  SPI.transfer(0x00);
  digitalWrite(chipSelect, HIGH);
  delay(1000);
}

MicroPython Example

from machine import Pin, SPI
import time

spi = SPI(0, baudrate=1_000_000, polarity=0, phase=0)
cs = Pin(5, Pin.OUT, value=1)

while True:
    # Replace with the maintained MAX7219 driver call.
    cs(0)
    spi.write(bytes([0x00]))
    cs(1)
    time.sleep(1)

Recommended Development Boards

Alternative Model Reasons

Common Questions

Alternatives and Related Parts