Sainsmart LCD Keypad Shield -- Code to help use keypad

Here is some code I wrote quick to get the reading of the 'A0' pin on my Sainsmart LCD Keypad Shield.

I'm hoping this code helps others how the keypad works, and perhaps will help integrate the keypad into some more understandable / newbie-friendly coding and projects.

Here's the code!

//
//Program: Sainsmart_LCD_Button_Readings
//
//Author: Jester_Baze
//
//Requires: -Sainsmart LCD Keypad Shield
//          -Arduino Uno R3
//
/*
  This program shows the value of the reading
  taken from pin A0 then displays it on the
  LCD shield. Hopefully this code is easier
  to digest than some of the google results.
  
  This is designed to make the Sainsmart LCD 
  Keypad Shield more newbie friendly.
  
  Hope this helps!
*/

#include <SPI.h>
#include <LiquidCrystal.h>

//Define your lcd pins
LiquidCrystal lcd( 8, 9, 4, 5, 6, 7 );

//Some notes I took...
//Mapped & Analog readouts from "A0" -- Keypad input
/*
  Nothing pressed = 100 or 1023
  'Select'        - 72 or 743
  'Left'          - 49 or 507
  'Right'         - 0 or 0
  'Up'            - 14 or 145/146
  'Down'          - 32 or 331
*/

void setup()
{
  lcd.begin(16,2);        //'16,2' is 16 columns, 2 rows on the display
  Serial.begin(9600);
  pinMode(A0, INPUT);     //pin 'A0' is your keypad's input.
}
  
void loop()
{
  //Read the A0 keypad pin
  int keypadInput = analogRead(A0);
  
  //Map it to a number between 0-100
  int keypadRead = map(keypadInput, 0, 1023, 0, 100);
  
  //Display the readings on the keypad
  Serial.println(keypadInput);
  lcd.print("Mapped: ");
  lcd.print(keypadRead);
  
  //Move the cursor down to line two
  lcd.setCursor(0,1);
  lcd.print("Actual: ");
  lcd.print(keypadInput);
  lcd.setCursor(0,0);
  
  //To help things work nice and pretty-like =)
  delay(150);
  lcd.clear();
}