// For ATtiny84 Turn on LED and Analog Read

// for SoftwareSerial you can use external clock since physical pins 2 and 3 are free.

#include "SoftwareSerial.h"

const int LED = 7;  

const int BUTTON = 3; 

const int Rx = 0; 

const int Tx = 1; 

SoftwareSerial mySerial(Rx, Tx);

int val = 0; // val from Max

void setup(){

pinMode(LED, OUTPUT);

pinMode(Rx, INPUT);

pinMode(Tx, OUTPUT);

mySerial.begin(115200); 

}

void loop()

{

//mySerial.read; // read MAX

if (mySerial.available()>0) {
  
  val = mySerial.read();
  if (val == 1) {
   digitalWrite(LED,HIGH);
    }
   else {
   digitalWrite(LED, LOW);
    }
  }
}