/*
* This is the Arduino code to control ISD1700 sournd recorder/player module
Using this code you can control Record, Play, Erase, Forward (next clip) with this module
 
// Written by Ahmad Shamshiri for Robojax.com on 
// on June 21, 2019 at 06:12 in Ajax, Ontario, Canada
Watch video instruction for this sketch : https://youtu.be/KDc2Z43DzT0

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* 
 * Code is available at http://robojax.com/learn/arduino

 * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.* 
 * This code has been download from Robojax.com
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>. 

*/

// 
#define FWD 6
#define ERASE 5
#define REC 4
#define PLAY 3
#define VOL 2
#define RECLED 8 // record LED

char *label[]={" ", " ", "VOL", "PLAY", "REC", "ERASE", "FWD"};


void setup() {
  // Robojax.com OSD1700 Recorder
  pinMode(FWD, OUTPUT);// set pin as OUTPUT for FWD
  pinMode(ERASE, OUTPUT);// set pin as OUTPUT for ERASE
  pinMode(REC, OUTPUT);// set pin as OUTPUT for REC
  pinMode(PLAY, OUTPUT);// set pin as OUTPUT for PLAY
  pinMode(VOL, OUTPUT);// set pin as OUTPUT for VOL
  pinMode(RECLED, OUTPUT);// set pin as OUTPUT for RECLED (record LED)

  digitalWrite(FWD, HIGH);//turn OFF the pin: FWD
  digitalWrite(ERASE, HIGH);//turn OFF the pin: ERASE
  digitalWrite(REC, HIGH);//turn OFF the pin: REC
  digitalWrite(PLAY, HIGH);//turn OFF the pin: PLAY
  digitalWrite(VOL, HIGH); //turn OFF the pin: VOL

  Serial.begin(9600);// initialize serial monitor to display text 
  Serial.println("IDS1700 Sound Recorder Player");
  Serial.println("By Robojax.com");
  record(2000);//  record sound for 2 sec
  delay(2000);// Wait for 2s
  action(PLAY);// play the last sound (the recorded sound)
}

void loop() {
  /*
   * if you want to record or play something
   * based on some action or value like temperature value or distance or ligh intensity
   * or voltage, you can use the if statement to do that 
   * for example if we have a variable for temperature called tempC and 
   * want to play the last sound which 3sec  if temperature is greater than 48.5°C we will do it like this
   if(tempC > 48.5){
    action(PLAY);//play last sound
    delay(3000);// Wait for 3s
    
    }

   * 
   * Erase and forward can be done the same way.
   */

}


/*
 * @brief executes the action to the pin
 * @param "pin" is integer representing the pin
 * @return does not return anything
 * 
 * www.Robojax.com code June 2019
 */
 void action(int pin){
  digitalWrite(pin,LOW);// start the command
    Serial.print("Pin: ");
    Serial.print(pin);
    Serial.println(" Active");
  delay(400);// give it a 400ms time to execute 
  digitalWrite(pin,HIGH);// stop the command
    Serial.print("Pin: ");
    Serial.print(pin);
    Serial.println(" OFF");  
  delay(400);// give it a 400ms time  to stop    
 }// action end


/*
 * @brief starts recording
 * @param "dur" is integer representing the duration of recording in millisecond
 * @return does not return anything
 * 
 * www.Robojax.com code June 2019
 */
void record(int dur){
  digitalWrite(REC,LOW);// start recording
  digitalWrite(RECLED,HIGH);// set the Record LED ON
  delay(dur);// record for the dur sec
  digitalWrite(REC,HIGH);// STOP recording
  delay(300);// give stop command a 300ms to stop 
  digitalWrite(RECLED,LOW);// set the Record LED OFF
}///record end