/*//========================
AD9833 Signal Generator
Pinout Purple :
 1   2   3   4   5   6   7
Ref-Vcc-Gnd-Dat-Clk-Fnc-Out

By Arf S
Board : Arduino Uno
Analog : 10-bits (0-1023)

switch Mode : 2
switch On : 3
========================*/
//#include<AD9833.h>
#include <LiquidCrystal_I2C.h>     // if you don´t have I2C version of the display, use LiquidCrystal.h library instead

#define Ain A3
#define swMod 2
#define swOn 3

//AD9833 gen(9);
long f; 
int sw1, sw2, mode;
bool onof;

LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display


//====================SETUP====================
void setup()
{
  lcd.init();                       // initialize the 16x2 lcd module
  lcd.backlight();                  // enable backlight for the LCD module

  pinMode(swMod,INPUT_PULLUP); pinMode(swOn,INPUT_PULLUP);
//  gen.Begin();              
//  gen.EnableOutput(true);

  lcd.setCursor(0,0);   lcd.print("AD9833 GENERATOR");
  lcd.setCursor(0,1);   lcd.print("--------------- "); 
  delay(1000);

}
//===================LOOP=====================
void loop()
{
  f = map(analogRead(Ain),0,1023,1,5000);
  ceksw();

//  lcd.setCursor(0,0);   lcd.print("Freq: 0000000 Hz");
  lcd.setCursor(0,0);   lcd.print("Freq: "); lcd.print(f); lcd.print(" Hz     ");
  lcd.setCursor(0,1);   
  if (mode==0) {lcd.print("Mode: Sin  ");} 
  if (mode==1) {lcd.print("Mode: Tri  ");} 
  if (mode==2) {lcd.print("Mode: Sqr  ");} 
  if (onof==0) {lcd.print("- OFF");}
  if (onof==1) {lcd.print("- ON ");}


  //if(sw1==LOW && sw2==LOW)    gen.ApplySignal(SINE_WAVE,REG0,f);
  //if(sw1==LOW && sw2==HIGH)   gen.ApplySignal(TRIANGLE_WAVE,REG0,f);
  //if(sw1==HIGH && sw2==LOW)   gen.ApplySignal(SQUARE_WAVE,REG0,f);
  //if(sw1==HIGH && sw2==HIGH)  gen.ApplySignal(HALF_SQUARE_WAVE,REG0,f);
  delay(50);
}

void ceksw(){
  sw1 = digitalRead(swMod); 
  sw2 = digitalRead(swOn);
  if (!sw1) {onof=!onof;delay(100);}
  if (!sw2) {mode++; if(mode>=3){mode=0;} delay(100);}
}