/*
 * Original source: https://github.com/adafruit/Adafruit-PWM-Servo-Driver-Library
 * 
 * This is the Arduino code to use two PCA6985 boards and control 32 servo motor
 * 
 * This is V3 Video on PCA9685: https://youtu.be/6P21wG7N6t4
 *  get this code and wiring from for this video:  http://robojax.com/RJT249
to learn better: watch the video for details (V1) and demo http://youtu.be/y8X9X10Tn1k

   
 * Written/updated by Ahmad Shamshiri for Robojax Video channel www.Robojax.com
 * Date: Dec 15, 2019, in Ajax, Ontario, Canada

 * Watch video for this code: 
 * 
 * Related Videos
V5 video of PCA9685 32 Servo with ESP32 with WiFi https://youtu.be/bvqfv-FrrLM
V4 video of PCA9685 32 Servo with ESP32 (no WiFi): https://youtu.be/JFdXB8Za5Os
V3 video of PCA9685 how to control 32 Servo motors https://youtu.be/6P21wG7N6t4
V2 Video of PCA9685 3 different ways to control Servo motors: https://youtu.be/bal2STaoQ1M
V1 Video introduction to PCA9685 to control 16 Servo  https://youtu.be/y8X9X10Tn1k
 * Disclaimer: this code is "AS IS" and for educational purpose only.


or make donation using PayPal http://robojax.com/L/?id=64

 *  * 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/>.
 */
#include <Wire.h>
#include <Adafruit_PWMServoDriver.h>

// called this way, it uses the default address 0x40
Adafruit_PWMServoDriver board1 = Adafruit_PWMServoDriver(0x40);
Adafruit_PWMServoDriver board2 = Adafruit_PWMServoDriver(0x41);

// Depending on your servo make, the pulse width min and max may vary, you 
// want these to be as small/large as possible without hitting the hard stop
// for max range. You'll have to tweak them as necessary to match the servos you
// have!
// Watch video V1 to understand the two lines below: http://youtu.be/y8X9X10Tn1k
#define SERVOMIN  125 // this is the 'minimum' pulse length count (out of 4096)
#define SERVOMAX  575 // this is the 'maximum' pulse length count (out of 4096)


int servoNumber = 0;

void setup() {
  Serial.begin(9600);
  Serial.println("16 channel Servo test!");

  board1.begin();
  board2.begin();  
  board1.setPWMFreq(60);  // Analog servos run at ~60 Hz updates
  board2.setPWMFreq(60);
  //yield();
}

// the code inside loop() has been updated by Robojax
void loop() {


    for( int angle =0; angle<181; angle +=10){
      for(int i=0; i<16; i++)
        {      
            board2.setPWM(i, 0, angleToPulse(angle) );
            board1.setPWM(i, 0, angleToPulse(angle) );
        }
    }
  
// robojax PCA9865 16 channel Servo control
  delay(100);
 
}

/*
 * angleToPulse(int ang)
 * gets angle in degree and returns the pulse width
 * also prints the value on seial monitor
 * written by Ahmad Nejrabi for Robojax, Robojax.com
 */
int angleToPulse(int ang){
   int pulse = map(ang,0, 180, SERVOMIN,SERVOMAX);// map angle of 0 to 180 to Servo min and Servo max 
   Serial.print("Angle: ");Serial.print(ang);
   Serial.print(" pulse: ");Serial.println(pulse);
   return pulse;
}

/*
 * Original source: https://github.com/adafruit/Adafruit-PWM-Servo-Driver-Library
 * 
 * This is the Arduino code for two PAC6985 board to control 16 servo on each board
 * total 32 servos using I2C communication
 * get this code and wiring from for this video (V3):  http://robojax.com/RJT249


 watch the video for details (V2) and demo https://youtu.be/6P21wG7N6t4

 * watch the video for details (V1) and demo http://youtu.be/y8X9X10Tn1k
 
 *  This code is #3 for V2 Video Watch the video :
 *  I have got 3 codes as follow:https://youtu.be/bal2STaoQ1M
 *  
   #1-Arduino Code to run one by one all servos from 0 to 180°   
   #2-Arduino Code to control specific servos with specific angle
   #3-Arduino Code to run 2 or all servos at together
   
 * Written/updated by Ahmad Shamshiri for Robojax Video channel www.Robojax.com
 * Date: Dec 16, 2017, in Ajax, Ontario, Canada
 * Permission granted to share this code given that this
 * note is kept with the code.
 * Disclaimer: this code is "AS IS" and for educational purpose only.
 * this code has been downloaded from http://robojax.com/ 

or make donation using PayPal http://robojax.com/L/?id=64

 *  * 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/>.
 */
#include <Wire.h>
#include <Adafruit_PWMServoDriver.h>

// called this way, it uses the default address 0x40
Adafruit_PWMServoDriver board1 = Adafruit_PWMServoDriver(0x40);
Adafruit_PWMServoDriver board2 = Adafruit_PWMServoDriver(0x41);

// Depending on your servo make, the pulse width min and max may vary, you 
// want these to be as small/large as possible without hitting the hard stop
// for max range. You'll have to tweak them as necessary to match the servos you
// have!
// Watch video V1 to understand the two lines below: http://youtu.be/y8X9X10Tn1k
#define SERVOMIN  125 // this is the 'minimum' pulse length count (out of 4096)
#define SERVOMAX  575 // this is the 'maximum' pulse length count (out of 4096)


int servoNumber = 0;

void setup() {
  Serial.begin(9600);
  Serial.println("16 channel Servo test!");

  board1.begin();
  board2.begin();  
  board1.setPWMFreq(60);  // Analog servos run at ~60 Hz updates
  board2.setPWMFreq(60);
  //yield();
}

// the code inside loop() has been updated by Robojax
void loop() {


    for( int angle =0; angle<181; angle +=10){
      for(int i=0; i<8; i++)
        {      
            board2.setPWM(i, 0, angleToPulse(angle) );
            board1.setPWM(i, 0, angleToPulse(angle) );
        }
    }


    for( int angle =0; angle<181; angle +=30){
      for(int i=8; i<16; i++)
        {      
            board2.setPWM(i, 0, angleToPulse(angle) );
            board1.setPWM(i, 0, angleToPulse(angle) );
        }
    }  
// robojax PCA9865 16 channel Servo control
  delay(100);
 
}

/*
 * angleToPulse(int ang)
 * gets angle in degree and returns the pulse width
 * also prints the value on serial monitor
 * written by Ahmad Shamshiri for Robojax, Robojax.com
 */
int angleToPulse(int ang){
   int pulse = map(ang,0, 180, SERVOMIN,SERVOMAX);// map angle of 0 to 180 to Servo min and Servo max 
   Serial.print("Angle: ");Serial.print(ang);
   Serial.print(" pulse: ");Serial.println(pulse);
   return pulse;
}

 /* Original source: https://github.com/adafruit/Adafruit-PWM-Servo-Driver-Library
 * 
 * This is the Arduino code for two PAC6985 board  and push button

 * total 32 servos using I2C communication
 * get this code and wiring from for this video (V3):  http://robojax.com/RJT249



 * watch the video for details (V1) and demo http://youtu.be/y8X9X10Tn1k
 *  This code is #3 for V2 Video Watch the video :
 *  I have got 3 codes as follow:https://youtu.be/bal2STaoQ1M
 *  
   #1-Arduino Code to run one by one all servos from 0 to 180°   
   #2-Arduino Code to control specific servos with specific angle
   #3-Arduino Code to run 2 or all servos at together
   
 * Written/updated by Ahmad Shamshiri for Robojax Video channel www.Robojax.com
 * Date: Dec 16, 2017, in Ajax, Ontario, Canada
 * Permission granted to share this code given that this
 * note is kept with the code.
 * Disclaimer: this code is "AS IS" and for educational purpose only.


 *  * 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/>.
 */
#include <Wire.h>
#include <Adafruit_PWMServoDriver.h>

// called this way, it uses the default address 0x40
Adafruit_PWMServoDriver board1 = Adafruit_PWMServoDriver(0x40);
Adafruit_PWMServoDriver board2 = Adafruit_PWMServoDriver(0x41);

// Depending on your servo make, the pulse width min and max may vary, you 
// want these to be as small/large as possible without hitting the hard stop
// for max range. You'll have to tweak them as necessary to match the servos you
// have!
// Watch video V1 to understand the two lines below: http://youtu.be/y8X9X10Tn1k
#define SERVOMIN  125 // this is the 'minimum' pulse length count (out of 4096)
#define SERVOMAX  575 // this is the 'maximum' pulse length count (out of 4096)

#define PUSH_BUTTON_PIN 2
#define OE_PIN 8

int boardState= LOW;
int showDebug=0;
int angle = 0;
int angleStep =10;

void setup() {
  Serial.begin(9600);
  Serial.println("16 channel Servo test!");

  board1.begin();
  board2.begin();  
  board1.setPWMFreq(60);  // Analog servos run at ~60 Hz updates
  board2.setPWMFreq(60);

  pinMode(PUSH_BUTTON_PIN,INPUT_PULLUP);
  pinMode(OE_PIN, OUTPUT);
  digitalWrite(OE_PIN,LOW);//turn module ON
  
}

// the code inside loop() has been updated by Robojax
void loop() {
   if(digitalRead(PUSH_BUTTON_PIN) == LOW)
   {
    boardState = 1-boardState;
    Serial.println("push button pressed");
    delay(200); // give the finger time
   } 
 digitalWrite(OE_PIN, boardState);  
    for( int angle =0; angle<181; angle +=angleStep){
      delay(50);
      for(int i=0; i<16; i++)
        {      
          board1.setPWM(i, 0, angleToPulse(angle) );
          board2.setPWM(i, 0, angleToPulse(angle) );
        }
    }  

// robojax PCA9865 16 channel Servo control
  delay(100);
 
}

/*
 * angleToPulse(int ang)
 * gets angle in degree and returns the pulse width
 * also prints the value on serial monitor
 * written by Ahmad Shamshiri for Robojax, Robojax.com
 */
int angleToPulse(int ang){
   int pulse = map(ang,0, 180, SERVOMIN,SERVOMAX);// map angle of 0 to 180 to Servo min and Servo max 
  if(showDebug)
  {
   Serial.print("Angle: ");Serial.print(ang);
   Serial.print(" pulse: ");Serial.println(pulse);
  }
   return pulse;
}

/*
 * updateState()
 * @brief reads push buttons and updates values
 * @param none
 * @return no return
 * Written by Ahmad Shamshiri for robojax.com
 * on Nov 01, 2019 at 18:10 in Ajax, Ontario, Canada
 */
void updateState()
{
   if(digitalRead(PUSH_BUTTON_PIN) == LOW)
   {
    boardState = 1-boardState;
    Serial.println("push button pressed");
    delay(200); // give the finger time
   }
   digitalWrite(OE_PIN, boardState);
}//updateState end