Hi @ Vhymanskyy thanks for getting back to me.
I’ve been using the following code for the last year or so. During this period I added and removed lines of codes but never had a memory issue.
What the code does is actuate few relays via Blynk or a web server. The reason I’m using the latter is because, at times, I found the Blynk server non responsive and I needed to get to my actuators via remote ASAP.
I’m using Arduino IDE v.1.8.2 to compile the code.
Surely you can find improvements in my code so I’d appreciate your comments as I’m a hobbyist and not a pro.
//#define BLYNK_DEBUG // Optional, this enables lots of prints
//#define BLYNK_PRINT Serial // Comment this out to disable prints and save space
#include <Bridge.h>
#include <BridgeServer.h>
#include <BridgeClient.h>
#include <BlynkSimpleYun.h>
#include <Process.h>
#include <SimpleTimer.h>
/* set timers */
SimpleTimer timerV1; // used by Blynk
SimpleTimer timerV2; // "
SimpleTimer timerWeb; // used for the web page
SimpleTimer timerSiren; // used by Blynk
SimpleTimer timerLed; // used by Blynk
//SimpleTimer timerEmail; // used or the email sub
unsigned long previousMillisM = 0; //==== used for mail sub
const long interval = 10000; // 1 min delay
String emailBody = "";
//=== set pin numbers ===
const int blindsSensorPin = 12; // (digital in) ?? when open
const int blindsOpenRelayPin = 5; // (digital out) open main blinds (persiana)
const int centralitaRelayPin = 6; // (digital out) reset centralita
const int sirenPin = 8; // (digital out) siren
const int VACsensorPin = A0; // (analog in) sensor 220Vac (4. Vdc through a R, a zener and a cap)
/* Blynk auth token */
char auth[] = "";
WidgetLED led1(V4);
void repeatTask() {
bool pinState = (digitalRead(blindsSensorPin) == LOW);
if (!pinState) {
Console.println("Switch closed");
led1.off(); // if switch is closed turn off led
}
else {
Console.println("Switch open");
led1.on();
}
}
/* web page */
BridgeServer server;
void setup()
{
pinMode(blindsSensorPin, INPUT);
pinMode(blindsOpenRelayPin, OUTPUT);
pinMode(centralitaRelayPin, OUTPUT);
pinMode(sirenPin, OUTPUT);
//keep relays OFF at start
digitalWrite(blindsOpenRelayPin, HIGH);
digitalWrite(centralitaRelayPin, HIGH);
digitalWrite(sirenPin, HIGH);
Bridge.begin();
Console.begin();
server.listenOnLocalhost();
server.begin();
//while (!Console); // Wait for Console port to connect
Blynk.begin(auth);
timerLed.setInterval(5000, repeatTask);
}
void loop() {
timerV1.run(); // used by Blynk
timerV2.run(); // "
timerWeb.run(); // used for the web page
timerSiren.run(); // used by Blynk
timerLed.run(); // used by Blynk
// reset mail body text
emailBody = "";
Console.print("\n"); // carriage return
Console.println("Today's Date/Time is: " + getTimeStamp());
// if it's 9AM open blinds
isOpeningTime();
/* if mains 220Vac are missing, send alert */
if (checkACline()) {
Console.println("No hay luz!!");
emailBody = "No hay luz!!"; // send email
sendMail();
}
/* ctr from web */
getCmdFromWeb();
// update Blynk
Blynk.run(); // has to be last line
}
//// END void loop
bool checkACline() {
int acDetection = analogRead(VACsensorPin); //take a reading
float voltage = (acDetection / 1024.0) * 5.0; // convert in V approx. 3,40V
//Console.println(voltage);
if (voltage >= 3.0) return true;
else return false;
}
/* is opening hour? */
void isOpeningTime() {
// get hours & minutes, convert to int and compare
String timeString = getTimeStamp(); // jump to sub
String hourString = timeString.substring(9, 11); // strip hours
String minString = timeString.substring(12, 14); // strip minutes
int hours = hourString.toInt(); // convert string to int
int minutes = minString.toInt();
// if it's 9AM and the blinds are closed, open them
if (hours == 9 && minutes == 0) {
digitalWrite(blindsOpenRelayPin, LOW); // activate relay
delay(1000); // activate relay w/900 ms (pulse)
digitalWrite(blindsOpenRelayPin, HIGH); // desactivate relay
delay(61000); // wait a minute to pass -- DON'T NEED IF USING IR SWITCH
emailBody = "Door opened at ";
emailBody += getTimeStamp();
sendMail();
}
}
//// END isOpeningTime
//========= Send Email sub =============0
/* https://forum.arduino.cc/index.php?topic=362659.0 */
void sendMail() {
/* http://forum.arduino.cc/index.php?topic=362659.0;nowap
http://ibuyopenwrt.com/index.php/8-yun-compatible/80-command-line-with-gmail-msmtp
to test gmail: /mnt/sda1/sendemail.sh 'testing gmail - this will show in the body'
*/
unsigned long currentMillis = millis(); //catch the current value of millis()
if (currentMillis - previousMillisM >= interval * 15) { // wait 15 minutes to resend email
Process p;
p.begin("/mnt/sda1/sendemail.sh");
p.addParameter(emailBody);
p.run();
Console.println("Sending mail");
while (p.running());
while (p.available() > 0) {
char c = p.read();
Console.println(c);
}
previousMillisM = currentMillis;
}
// timerEmail.setTimeout(6000, limitSendingEmails);
}
void limitSendingEmails() {
// do nothing
}
//// END Send Email sub
/* ===== BLYNK CONTROLS ===== */
BLYNK_WRITE(V1)
{
if ( param.asInt() == 1)
{
digitalWrite(blindsOpenRelayPin, LOW); // activate relay
timerV1.setTimeout(1000, deactivateRelayV1);
}
}
void deactivateRelayV1() {
digitalWrite(blindsOpenRelayPin, HIGH); // deactivate relay
}
BLYNK_WRITE(V2)
{
if ( param.asInt() == 1)
{
digitalWrite(centralitaRelayPin, LOW); // activate relay
timerV2.setTimeout(10000, deactivateRelayV2);
}
}
void deactivateRelayV2() {
digitalWrite(centralitaRelayPin, HIGH); // deactivate relay
}
BLYNK_WRITE(V3)
{
if ( param.asInt() == 1)
{
digitalWrite(sirenPin, LOW); // activate relay
timerSiren.setTimeout(2000, deactivateRelaySiren);
}
}
void deactivateRelaySiren() {
digitalWrite(sirenPin, HIGH); // deactivate relay
}
/* ===== --- ===== */
//**** Get Time Stamp ****
String getTimeStamp() {
String result;
Process time;
time.begin("date");
time.addParameter("+%D-%T");
time.run();
while (time.available() > 0) {
char c = time.read();
if (c != '\n')
result += c;
}
return result;
}
//// END getTimeStamp
/* Web pages */
void getCmdFromWeb() {
BridgeClient client = server.accept();
//==== There is a new client?
if (client) {
String command = client.readString();
command.trim(); //kill whitespace
if (command == "activateRelay") {
digitalWrite(blindsOpenRelayPin, LOW);
timerWeb.setTimeout(1000, deactivateRelayBlinds);
emailBody = "Se ha activado el relay de la persiana"; // send email
sendMail();
Console.println("***************** Relay Pulsed **************************");
}
if (command == "resetCentralita") {
digitalWrite(centralitaRelayPin, LOW);
timerWeb.setTimeout(10000, deactivateRelayCentralita);
emailBody = "Se ha re-iniciada la centralita"; // send email
sendMail();
Console.println("===== Relay Centralita Pulsed =====");
}
// Close connection and free resources.
client.stop();
}
delay(50); //==== 50ms delay
}
void deactivateRelayBlinds() {
digitalWrite(blindsOpenRelayPin, HIGH); // deactivate relay
}
void deactivateRelayCentralita() {
digitalWrite(centralitaRelayPin, HIGH); // deactivate relay
}
I had questions, but I moved them over to the relevant topic.