but in my smartphone doesn’t appear, but in my void setup, i write
SwSerial.println("READY");
Blynk.notify("READY");
this appears on my notification my smartphone
note : i use arduino uno with software serial USB
sorry my language so bad
thanks
#define BLYNK_PRINT SwSerial
#include <SoftwareSerial.h>
SoftwareSerial SwSerial(10, 11); // RX, TX
#include <BlynkSimpleStream.h>
char auth[] = "560910e1a47d4c31a4bd347b926502b3";
int in1 = 2; // Pin Relay
int led = 13; // LED Pin
int sensor = 6; // Pir Sensor
int state = LOW; // by default, no motion detected
int val = 0; // variable to store the sensor status (value)
void setup()
{
SwSerial.begin(9600);
Serial.begin(9600);
Blynk.begin(Serial, auth);
pinMode(led, OUTPUT); // initalize LED as an output
pinMode(sensor, INPUT); // initialize LED sensor as an input
pinMode(in1, OUTPUT); // initialize PIR sensor as an input
digitalWrite(in1, HIGH); // initialize PIR sensor as an input
SwSerial.println("READY"); // SET NOTIFICATION READY
Blynk.notify("READY"); // SET NOTIFICATION READY
}
void loop(){
Blynk.run();
m1(); // CALL m1
}
void m1(){
val = digitalRead(sensor); // read sensor value
if (val == HIGH) { // check if the sensor is HIGH
digitalWrite(led, HIGH); // turn LED ON
delay(50); // delay 100 milliseconds
if (state == LOW) {
Serial.println("Motion detected!");
state = HIGH; // update variable state to HIGH
SwSerial.println("Motion Detected");
Blynk.notify("Motion Detected");
digitalWrite(in1, LOW);
}
}
else {
digitalWrite(led, LOW); // turn LED OFF
digitalWrite(in1, HIGH);
delay(100); // delay 200 milliseconds
if (state == HIGH){
Serial.println("Motion stopped!");
state = LOW; // update variable state to LOW
}
}
}
You should use a flag to limit the Blynk notifications as you are limited to 1 every 5s; and as you call the function from the main loop, the app tries to “fire” the notification a few hundred times a second and you het blocked by the server (to prevent flooding). Call that from a timer everi second or two (most pir sensors have the output active for a few seconds), implement a flag to prevent flooding and you’ll be good to go.
#define BLYNK_PRINT SwSerial
#include <SoftwareSerial.h>
SoftwareSerial SwSerial(10, 11); // RX, TX
#include <BlynkSimpleStream.h>
BlynkTimer timer; // Announcing the timer
char auth[] = "560910e1a47d4c31a4bd347b926502b3";
int relaypin = 2; // Relay Pin
int ledPin = 13; // choose the pin for the LED
int inputPin = 6; // choose the input pin (for PIR sensor)
int pirState = LOW; // we start, assuming no motion detected
int val = 0; // variable for reading the pin status
void setup()
{
pinMode(ledPin, OUTPUT); // declare LED as output
digitalWrite(ledPin, LOW);
pinMode(inputPin, INPUT); // declare sensor as input
pinMode(relaypin, OUTPUT);
digitalWrite(relaypin, HIGH);
SwSerial.begin(9600);
Serial.begin(9600);
Blynk.begin(Serial, auth);
SwSerial.println("READY");
Blynk.notify("READY");
timer.setInterval(1000L, sensorDataSend); //timer will run every sec
}
void loop(){
Blynk.run();
timer.run(); // run timer every second
}
void sensorDataSend(){
val = digitalRead(inputPin); // read input value
Blynk.virtualWrite(V1, val); // sending sensor value to Blynk app
if (val == HIGH) { // check if the input is HIGH
if (pirState == LOW) {
// we have just turned on
digitalWrite(ledPin, HIGH); // turn LED ON
digitalWrite(relaypin, LOW);
Blynk.notify("Motion Detected");
// We only want to print on the output change, not state
pirState = HIGH;
delay(1000);
}
} else {
if (pirState == HIGH){
// we have just turned of
digitalWrite(ledPin, LOW); // turn LED OFF
digitalWrite(relaypin, HIGH);
// We only want to print on the output change, not state
pirState = LOW;
delay(1000);
}
}
delay(1000);
}
note : i put more delay 1 sec, just guide say, and works, thanks
It may be working… but not properly… you have a 1 second interval timer running, but then the function it calls has a total of 2 second delays in it… and since delay() blocks ALL processing, this WILL interfere with Blynk’s communication and your timer.
Bad coding methods for IoT based programs like Blynk.
