MCP4725 help make analogue pot to output linear 0-5v analogue out of DAC on UNO

Projects Programming
1

Hi Arduino Community I
Need help to complete code so that I get a 0-5v output.
Im no coder just copy paste and test is my limits..

#include <Wire.h>
#include <Adafruit_MCP4725.h>

Adafruit_MCP4725 dac;


#define DAC_RESOLUTION    (8)

int knockB;


void setup(void) {
  Serial.begin(9600);
  Serial.println("Hello!");

  dac.begin(0x62);

  Serial.println("0-5v analog output voltage");
  
}

void loop()  {
  float Knock =  knockB * (5.0 / 1023.0);
  
float knockSignal = map(knockB, 0, 1023, 0, 255);

Serial.println("0-5v analog voltage");// Serial.println(Knock); 
Serial.println(Knock);
  Serial.println(knockB);
  Serial.println(knockSignal); 
knockB = analogRead(A2);
       dac.setVoltage(knockSignal, false);
 delay(500);    
}

I found this sine look up table generator, if only I knew how to implement it. Sine Look Up Table Generator Calculator

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