#include <MD_MAX72xx.h>
#include <SPI.h>


const int red_LED = 23;

void setup() {
  // put your setup code here, to run once:
  pinMode(red_LED, OUTPUT);
  Serial.begin(115200);
  Serial.println("red LED started");  // Fixed: Added quotes around the string
}

void loop(){
  // put your main code here, to run repeatedly:
  digitalWrite(red_LED, HIGH);        // Fixed: Changed '1' to 'HIGH' (better practice)
  Serial.println("Light on");
  delay(5000);

 digitalWrite(red_LED, LOW);
  Serial.println("Light off");
  delay(5000);

 
}