Hello,
First-time coder and poster here, using a D1 Mini and IOS
I’ve been reading and experimenting with issues similar to mine but nothing seems to work for me. Push notifications get sent every second.
This brings me to my first question…
I need to have one notification and then every 10 minutes after. Are there any other options I could try?
I’ve added all my tests (commented) so that someone who could help, could maybe point out what I’ve done wrong.
At first, I thought it was my code, so tried another, didn’t work either
then tried adding a button to stop the notifications but couldn’t get it to work
then I thought it gets sent with the sendSensor and placed it in it’s own void() and that didn’t work either
timer.setInterval set at 10 min delays the message for that time but I do not get the first one at the trigger event, which is actually one I need
moved the notified = 0 to voidSetup didn’t help either
added a delay () which seems to work for short time periods but not long ones the device goes offline, might interrupt something in the blynk loop or something
//tried both of these with each one below
//BlynkTimer timer;
SimpleTimer timer;
BLYNK_WRITE(V3)//Notifications on or off
{
int pinValue2 = param.asInt(); // assigning incoming value from pin V1 to a variable
if (pinValue2 == 1) { // If value is 1 run this command
digitalWrite(D10, HIGH); //D4 output from Wemos D1 mini
}
else { // If value is 0 run this command
digitalWrite(D10, LOW);
}
Serial.print("V3 Button value is: ");
Serial.println(pinValue2);
}
void sendSensor()
{
float h = dht.readHumidity();
float t = dht.readTemperature(); // or dht.readTemperature(true) for Fahrenheit
if (isnan(h) || isnan(t)) {
Serial.println("Failed to read from DHT sensor!");
return;
}
// You can send any value at any time.
// Please don't send more that 10 values per second.
Blynk.virtualWrite(V5, h);
Blynk.virtualWrite(V6, t);
//Notifications 1st try
/*
if (t >= 32 && notified == 0) {
notified = 1;
Blynk.notify ("Alert - Temperature over 32C!");
timer.setTimeout(600000L, resetNotified); // 10 min between messages
}
else if (t < 32) { // set lower than 60... to stop the 59.9-60.0 bouncing.
notified = 0;
}
if (t <= 26 && notified == 0) {
notified = 1;
Blynk.notify("Alert - Temperature under 27C!");
timer.setTimeout(600000L, resetNotified); // 10 min between messages
}
else if (t > 27) {
notified = 0;
}
}
void resetNotified() {
notified = 0;
}
*/
// Notifications 2nd try
/*
bool tempflag = true;
if ((t < 32) && (tempflag == true)){
Blynk.notify("Temperature is lower than 32C");
tempflag = false;
}
if (t >= 32){
tempflag = true;
}
*/
/*//Notification 3rd try with button
if (V3 == 1){
Serial.print( "Notifications are " );
Serial.println( V3 );
}
else if (t > 20 && notified == 0){
notified = 1;
Blynk.notify ("Alert - Temperature over 20C!");
timer.setTimeout(600000L, resetNotified); // 10 min between messages
}
else (t < 20);{ // set lower than 60... to stop the 59.9-60.0 bouncing.
notified = 0;
}
*/
}
//Notifications 4th try in void
void sendNotification()
{
float t = dht.readTemperature(); // or dht.readTemperature(true) for Fahrenheit
//Temperature too High
if (t >= 28 && notified == 0) {
notified = 1;
Blynk.notify ("Alert - Temperature over 32C!");
//delay(1000); // 1 second til next notification --> Works
delay(10000); // 10 seconds till next notification --> Works
//delay(60000); // 1 minute till next notification --> Device goes offline a few seconds after 1st notification
//delay(600000); // 10 minutes till next notification --> Device goes offline a few seconds after 1st notification
notified = 0;
}
else if (t < 31) {
notified = 0;
}
//Temperature too Low
if (t <= 27 && notified == 0) {
notified = 1;
Blynk.notify ("Alert - Temperature under 27C!");
}
else if (t > 28) { //Set lower or higher than (if) event
notified = 0;
}
}
//Notifications 5th try in void with button
/*
void sendNotification()
{
int pinValue2 = V3;
float t = dht.readTemperature(); // or dht.readTemperature(true) for Fahrenheit
//Temperature too High
if (t >= 28 && notified == 0 && pinValue2 == 1) {
notified = 1;
Blynk.notify ("Alert - Temperature over 32C!");
}
else if (t < 31) {
notified = 0;
}
//Temperature too Low
if (t <= 27 && notified == 0 && pinValue2 == 1) {
notified = 1;
Blynk.notify ("Alert - Temperature under 27C!");
}
else if (t > 28) { //Set lower or higher than (if) event
notified = 0;
}
}
*/
void resetNotified() {
notified = 0;
}
void setup()
{
Serial.begin(115200);
Blynk.config(auth);
dht.begin();
timer.setInterval(1000L, sendSensor);
// timer.setInterval(1000L, sendNotification); // 1 second delay
// timer.setInterval(60000L, sendNotification); // 1 minute delay
timer.setInterval(600000L, sendNotification); // 10 minutes delay from when triggered and sends but works for the 10 min notification
timer.setInterval(60000L, resetNotified); // this seems to do nothing
}
void loop()
{
Blynk.run();
timer.run();
}
My second question: I also need help with getting the virtual button on V3 in the Blynk app to work so that I can turn notifications on and off… what am I doing wrong?
Thanks in advance for your assistance