Before creating the topic
- Search forum for similar topics
- Check http://docs.blynk.cc and http://help.blynk.cc/
- Add details :
• Hardware model + communication type. For example: Arduino UNO with Ethernet Shield
• Smartphone OS (iOS or Android) + version
• Blynk server or local server
• Blynk Library version
• Add your sketch code. Code should be formatted as example below.
Simply paste your code between ``` If you don’t format your code, your topic can be deleted by moderators.
#define BLYNK_PRINT Serial
#include <ESP8266_Lib.h>
#include <BlynkSimpleShieldEsp8266.h>
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "1OtSGYQGiX0xUsMWU8Yb0fLAa7Fxt4W";
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "kjmnz_5ghz";
char pass[] = "";
// Hardware Serial on Mega, Leonardo, Micro...
//#define EspSerial Serial1
// or Software Serial on Uno, Nano...
#include <SoftwareSerial.h>
SoftwareSerial EspSerial(2, 3); // RX, TX
// Your ESP8266 baud rate:
#define ESP8266_BAUD 115200
ESP8266 wifi(&EspSerial);
void notifyOnButtonPress()
{
// Invert state, since button is "Active LOW"
int isButtonPressed = !digitalRead(2);
if (isButtonPressed) {
Serial.println("Button is pressed.");
// Note:
// We allow 1 notification per 15 seconds for now.
Blynk.notify("Yaaay... button is pressed!");
}
}
void setup()
{
// Debug console
Serial.begin(9600);
// Set ESP8266 baud rate
EspSerial.begin(ESP8266_BAUD);
delay(10);
Blynk.begin(auth, wifi, ssid, pass);
// You can also specify server:
//Blynk.begin(auth, wifi, ssid, pass, "blynk-cloud.com", 80);
//Blynk.begin(auth, wifi, ssid, pass, IPAddress(192,168,1,100), 8080);
// Setup notification button on pin 2
pinMode(2, INPUT_PULLUP);
// Attach pin 2 interrupt to our handler
attachInterrupt(digitalPinToInterrupt(2), notifyOnButtonPress, CHANGE);
}
void loop()
{
Blynk.run();
}