#include <DallasTemperature.h>
#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
#include "printf.h"
#include <OneWire.h>
#include <Wire.h>
#include <Sodaq_DS3231.h>
#define ONE_WIRE_BUS 2
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
char weekDay[][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
// constants won't change. Used here to set a pin number:
const int PumpPin = 3;// the number of the Pump pin 5
const int GrowLed = 4; // GrowLED Relay set to digital pin 4
const int Fan = 6 ; // Fan Relay set to digital pin 6
const int lightSens = A0; // select the input pin for LDR
// Variables will change:
int PumpState = LOW; // PumpState used to set the Pump
int lightSensValue = 0; // variable to store the value coming from the sensor
unsigned long previousMillis = 0; // will store last time Pump was updated
// constants won't change:
const long interval = 120000; // interval at which to change Pump (milliseconds)
//
// Hardware configuration
//
struct MyData {
byte t;
};
MyData data;
// Set up nRF24L01 radio on SPI bus plus pins 8 & 7
RF24 radio(8,7);
// sets the role of this unit in hardware. Connect to GND to be the 'led' board receiver
// Leave open to be the 'remote' transmitter
const int role_pin = A4;
//
// Topology
//
// Single radio pipe address for the 2 nodes to communicate.
const uint64_t pipe = 0xE8E8F0F0E1LL;
//
// Role management
//
// Set up role. This sketch uses the same software for all the nodes in this
// system. Doing so greatly simplifies testing. The hardware itself specifies
// which node it is.
//
// This is done through the role_pin
//
// The various roles supported by this sketch
typedef enum { role_remote = 1, role_led } role_e;
// The debug-friendly names of those roles
const char* role_friendly_name[] = { "invalid", "Hydro Main", "Hydro Screen"};
// The role of the current running sketch
role_e role;
void setup() {
role = role_remote;
Serial.begin(57600);
Wire.begin();
rtc.begin();
pinMode(PumpPin, OUTPUT);
pinMode(GrowLed, OUTPUT);
pinMode(Fan, OUTPUT);
sensors.begin(); // Start up the library
printf_begin();
printf("\n\Hydro System\n\r");
printf("ROLE: %s\n\r",role_friendly_name[role]);
//
// Setup and configure rf radio
//
radio.begin();
radio.setAutoAck(false);
radio.setDataRate(RF24_250KBPS);
radio.setPALevel(RF24_PA_MAX);
radio.setChannel(108);
//
// Open pipes to other nodes for communication
//
// This simple sketch opens a single pipes for these two nodes to communicate
// back and forth. One listens on it, the other talks to it.
if ( role == role_remote )
{
radio.openWritingPipe(pipe);
}
else
{
radio.openReadingPipe(1,pipe);
}
radio.printDetails();
}
void loop() {
watteringRelay(); // watering timer in the watteringRelay function
tempController(); //Controle the temp with tempController function
tempSend();
timedRelay();
}
void tempSend(){
// Send the command to get temperatures
sensors.requestTemperatures();
data.t = sensors.getTempCByIndex(0);
bool ok = radio.write( &data, sizeof(MyData) );
Serial.println("Send ");
Serial.println (data.t);
if (ok)
printf("ok\n\r");
else
printf("failed\n\r");
}
// here's where the magic happens for the watering of the plants:
void watteringRelay()
{
// check to see if it's time to change the Pump; that is, if the difference
// between the current time and last time you cgange the Pump is bigger than
// the interval at which you want to change the Pump.
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
// save the last time you change the Pump
previousMillis = currentMillis;
// if the Pump is off turn it on and vice-versa:
if (PumpState == LOW) {
PumpState = HIGH;
} else {
PumpState = LOW;
}
// set the Pump with the PumpState of the variable:
digitalWrite(PumpPin, PumpState);
}
if(PumpState == 0){
Serial.println("Pump On");
}else {
Serial.println("Pump off");
}
}
// here's where the magic happens for the temperature:
void tempController()
{
// Send the command to get temperatures
sensors.requestTemperatures();
//print the temperature in Celsius
Serial.print("Temperature: ");
Serial.print(sensors.getTempCByIndex(0));
Serial.print("C | ");
if (sensors.getTempCByIndex(0) >= 25.00){
digitalWrite(Fan, LOW);
Serial.println("FAN On");
}else if (sensors.getTempCByIndex(0) <= 20.00){
digitalWrite(Fan, LOW);
Serial.println("FAN On");
}else {
digitalWrite(Fan, HIGH);
Serial.println(F("FAN Off"));
}
}
// here's where the magic happens for the grow lights:
void timedRelay()
{
DateTime now = rtc.now(); //get the current date-time
Serial.print(now.hour());
Serial.print(':');
Serial.print(now.minute());
Serial.print(':');
Serial.print(now.second());
switch (now.hour())
{
case 05: //when the clock reads 05 hours (Once a minute at the halfway mark)
digitalWrite(GrowLed, LOW); // turn the Relay on (LOW is the voltage level)
Serial.println("grow light on");
break;
case 17: //when the clock reads 17 hours
digitalWrite(GrowLed, HIGH); // turn the Relay on (LOW is the voltage level)
Serial.println("grow light off");
break;
}
if (now.hour()<17 ){
lightSensValue = analogRead(lightSens); // read the value from the sensor
Serial.println(lightSensValue);
if( lightSensValue <= 700){
digitalWrite(GrowLed, LOW); // turn the Relay on (LOW is the voltage level)
Serial.println("grow light on");
} else {
digitalWrite(GrowLed, HIGH); // turn the Relay on (LOW is the voltage level)
Serial.println("grow light off");
}
}else {
digitalWrite(GrowLed, HIGH); // turn the Relay on (LOW is the voltage level)
Serial.println("grow light off");
}
}
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