ST-ARD-Feeder.cc

// SoftwareSerial - Version: Latest 
/*
  Taken from:
  Arduino Starter Kit example
  Project 9 - Motorized Pinwheel

  Uses the SmartThings library.

  This example code is part of the public domain.
*/
#include <SoftwareSerial.h>   //TODO need to set due to some weird wire language linker, should we absorb this whole library into smartthings
#include <SmartThings.h>

// named constants for the switch and motor pins
//const int switchPin = 2; // the number of the switch pin

//*****************************************************************************
// Pin Definitions    | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
//                    V V V V V V V V V V V V V V V V V V V V V V V V V V V V V
//*****************************************************************************
#define PIN_LED         13
#define PIN_THING_RX    3
#define PIN_THING_TX    2
const int motorPin =  11; // the number of the motor pin
//*****************************************************************************
// Global Variables   | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
//                    V V V V V V V V V V V V V V V V V V V V V V V V V V V V V
//*****************************************************************************
SmartThingsCallout_t messageCallout;    // call out function forward decalaration
SmartThings smartthing(PIN_THING_RX, PIN_THING_TX, messageCallout);  // constructor

bool isDebugEnabled;    // enable or disable debug in this example
int stateLED;           // state to track last set value of LED
int stateNetwork;       // state of the network 


int switchState = 0;  // variable for reading the switch's status


//*****************************************************************************
// Local Functions  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
//                  V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V
//*****************************************************************************
void on()
{
  stateLED = 1;                 // save state as 1 (on)
  digitalWrite(motorPin, HIGH);
  digitalWrite(PIN_LED, HIGH);  // turn LED on
  smartthing.shieldSetLED(0, 0, 2);
  smartthing.send("on");        // send message to cloud
}

//*****************************************************************************
void off()
{
  stateLED = 0;                 // set state to 0 (off)
  digitalWrite(motorPin, LOW);
  digitalWrite(PIN_LED, LOW);   // turn LED off
  smartthing.shieldSetLED(0, 0, 0);
  smartthing.send("off");       // send message to cloud
}

//*****************************************************************************
void setNetworkStateLED()
{
  SmartThingsNetworkState_t tempState = smartthing.shieldGetLastNetworkState();
  if (tempState != stateNetwork)
  {
    switch (tempState)
    {
      case STATE_NO_NETWORK:
        if (isDebugEnabled) Serial.println("NO_NETWORK");
        smartthing.shieldSetLED(2, 0, 0); // red
        break;
      case STATE_JOINING:
        if (isDebugEnabled) Serial.println("JOINING");
        smartthing.shieldSetLED(2, 0, 0); // red
        break;
      case STATE_JOINED:
        if (isDebugEnabled) Serial.println("JOINED");
        smartthing.shieldSetLED(0, 0, 0); // off
        break;
      case STATE_JOINED_NOPARENT:
        if (isDebugEnabled) Serial.println("JOINED_NOPARENT");
        smartthing.shieldSetLED(2, 0, 2); // purple
        break;
      case STATE_LEAVING:
        if (isDebugEnabled) Serial.println("LEAVING");
        smartthing.shieldSetLED(2, 0, 0); // red
        break;
      default:
      case STATE_UNKNOWN:
        if (isDebugEnabled) Serial.println("UNKNOWN");
        smartthing.shieldSetLED(0, 2, 0); // green
        break;
    }
    stateNetwork = tempState; 
  }
}

//*****************************************************************************
// API Functions    | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
//                  V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V
//*****************************************************************************

void setup() {
  // initialize the motor pin as an output:
  pinMode(motorPin, OUTPUT);
  // initialize the switch pin as an input:
  //pinMode(switchPin, INPUT);
  // setup default state of global variables
  isDebugEnabled = true;
  stateLED = 0;                 // matches state of hardware pin set below
  stateNetwork = STATE_JOINED;  // set to joined to keep state off if off
  
  // setup hardware pins 
  pinMode(PIN_LED, OUTPUT);     // define PIN_LED as an output
  digitalWrite(PIN_LED, LOW);   // set value to LOW (off) to match stateLED=0

  if (isDebugEnabled)
  { // setup debug serial port
    Serial.begin(9600);         // setup serial with a baud rate of 9600
    Serial.println("setup..");  // print out 'setup..' on start
  }
}

void loop() {
    // run smartthing logic
  smartthing.run();
  setNetworkStateLED();
  // read the state of the switch value:
  //switchState = digitalRead(switchPin);

  // check if the switch is pressed.
  if (stateLED == 1) {
    // turn motor on:
    digitalWrite(motorPin, HIGH);
  } else {
    // turn motor off:
    digitalWrite(motorPin, LOW);
  }
}

//*****************************************************************************
void messageCallout(String message)
{
  // if debug is enabled print out the received message
  if (isDebugEnabled)
  {
    Serial.print("Received message: '");
    Serial.print(message);
    Serial.println("' ");
  }

  // if message contents equals to 'on' then call on() function
  // else if message contents equals to 'off' then call off() function
  if (message.equals("on"))
  {
    on();
    //run the motor for 3 seconds, the auto turn off.
    delay(3000);
    off();
  }
  else if (message.equals("off"))
  {
    off();
  }
}