Hi all, I have a temperature reader on my greenhouse that triggers a close/open of a hatch (linear actuator) and I want it to send an email to me when temperature reaches an extreme temperature. I downloaded the CC3000 library and I couldn't find a way to send a simple email. Then I created a Blynk account and tried to use that library, but didn't get very far (can't find a suitable code using CC3000 library and on the Blynk front, I can't get my device to appear on Blynk). I've also reviewed a few forums and I can't seem to find something that works for me. I need some guidance, whether it's to use 3rd party tools or something part of the CC3000 library, etc. Below is the code I tried using Blynk, but it doesn't connect to the internet (that's where the serial monitor stays forever)
/*************************************************************
For this example you need Adafruit_CC3000_Library library:
GitHub - adafruit/Adafruit_CC3000_Library: Library code for Adafruit's CC3000 WiFi breakouts &c
Note: Firmware version 1.14 or later is preferred.
Simple e-mail example
App project setup:
E-mail Widget
Connect a button to digital pin 2 and GND
Pressing this button will send an e-mail
WARNING: You are limited to send ONLY ONE E-MAIL PER 5 SECONDS!
*************************************************************/
// Template ID, Device Name and Auth Token are provided by the Blynk.Cloud
// See the Device Info tab, or Template settings
#define BLYNK_TEMPLATE_ID "the one Blynk gave me when I created a template especifically using Arduino and CC3000 shield"
#define BLYNK_DEVICE_NAME "Quickstart Device"
#define BLYNK_AUTH_TOKEN "the one Blynk gave me when I created a template especifically using Arduino and CC3000 shield"
// Comment this out to disable prints and save space
#define BLYNK_PRINT Serial
/* Set this to a bigger number, to enable sending longer messages */
//#define BLYNK_MAX_SENDBYTES 128
// These are the interrupt and control pins for СС3000
#define ADAFRUIT_CC3000_IRQ 3
#define ADAFRUIT_CC3000_VBAT 5
#define ADAFRUIT_CC3000_CS 10
//Constants
#define DHTPIN 2 // what pin we're connected to
#define DHTTYPE DHT22 // DHT22
#define actuator 4
#include <SPI.h>
#include <Adafruit_CC3000.h>
#include <BlynkSimpleCC3000.h>
//Libraries
#include <DHT.h>
#include "max6675.h" //for MAX6675 thermocouple chip
DHT dht(DHTPIN, DHTTYPE); // Initialize DHT sensor for normal 16mhz Arduino
char auth[] = BLYNK_AUTH_TOKEN;
// Your WiFi credentials.
// Choose wifi_sec from WLAN_SEC_UNSEC, WLAN_SEC_WEP, WLAN_SEC_WPA or WLAN_SEC_WPA2
char ssid[] = "my 2.4 wifi network";
char pass[] = "my password for that network";
int wifi_sec = WLAN_SEC_WPA2;
//Variables
float temp; //Stores temperature value
int maxTemp = 28; // define maximum temperature on which actuator starts
int minTemp = 20; // define minimmum temperature on which actuator retracts
int emailTemp= 35; // define minimmum temperature on which an email is sent
const int IN1_PIN = 7; // the Arduino pin connected to the IN1 pin L298N
const int IN2_PIN = 8; // the Arduino pin connected to the IN2 pin L298N
//initialising the thermocouple K / MAX6675
int thermoDO = 12;
int thermoCS = 11;
int thermoCLK = 13;
// initialise MAX6675
MAX6675 thermocouple(thermoCLK, thermoCS, thermoDO);
void setup()
{
// Debug console
Serial.begin(115200);
//Initialize the DHT sensor
dht.begin();
// initialize digital pins as outputs.
pinMode(IN1_PIN, OUTPUT);
pinMode(IN2_PIN, OUTPUT);
// wait for MAX chip to stabilize
delay(500);
Blynk.begin(auth, ssid, pass, wifi_sec);
Serial.print("connected");
Blynk.email("my email", "test", "test");
}
void loop()
{
Blynk.run();
//Read data and store it to variable temp (adds 4 degrees as I've noticed that this is the amount by which the temperature is off)
temp= thermocouple.readCelsius()+4;
//show the temperature of both the DH22 and the MAX6675. the latter one controls the actuator
Serial.print("C DH22 = ");
Serial.print(dht.readTemperature());
Serial.print("C MAX6675= ");
Serial.println(temp);
if (temp>emailTemp){
// Just put the recepient's "e-mail address", "Subject" and the "message body"
Blynk.email("my email", "Greenhouse - Open hatch", "The greenhouse temperature is above 35C, it needs the hatch to be manually opened all the way up.");
delay (10000);
Blynk.email("my email", "Greenhouse - Open hatch", "The greenhouse temperature is above 35C, it needs the hatch to be manually opened all the way up.");
delay (5000);
}
else if(emailTemp >temp > maxTemp) {
// extend the actuator
digitalWrite(IN1_PIN, HIGH);
digitalWrite(IN2_PIN, LOW);
//only open for 5 seconds and leave it half way unless it has reached end of path
delay (5000);
digitalWrite(IN1_PIN, LOW);
digitalWrite(IN2_PIN, LOW);
}
else if (temp <minTemp){
// retracts the actuator
digitalWrite(IN1_PIN, LOW);
digitalWrite(IN2_PIN, HIGH);
//only open for 5 seconds and leaves it half way unless it has reached end of path
delay (5000);
digitalWrite(IN1_PIN, LOW);
digitalWrite(IN2_PIN, LOW);
}
else {
// stops
digitalWrite(IN1_PIN, LOW);
digitalWrite(IN2_PIN, LOW);
}
//30 secs delay between reads. provides enough time for temperature to stabilise when the hatch is half opened
delay(30000);
}
