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Jérôme Delacotte
2025-03-06 11:15:32 +01:00
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82
libraries/Blynk/examples/GettingStarted/BlynkBlink/BlynkBlink.ino Normal file
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/*************************************************************
Blynk is a platform with iOS and Android apps to control
ESP32, Arduino, Raspberry Pi and the likes over the Internet.
You can easily build mobile and web interfaces for any
projects by simply dragging and dropping widgets.
Downloads, docs, tutorials: https://www.blynk.io
Sketch generator: https://examples.blynk.cc
Blynk community: https://community.blynk.cc
Follow us: https://www.fb.com/blynkapp
https://twitter.com/blynk_app
Blynk library is licensed under MIT license
This example code is in public domain.
*************************************************************
You’ll need:
- Blynk App (download from AppStore or Google Play)
- Arduino UNO or similar microcontroller board
- Decide how to connect to Blynk
(USB, Ethernet, Wi-Fi, Bluetooth, ...)
There is a bunch of great example sketches included to show you how to get
started. Think of them as LEGO bricks and combine them as you wish.
For example, take the Ethernet Shield sketch and combine it with the
Servo example, or choose a USB sketch and add a code from SendData
example.
*************************************************************
Let’s turn ON your LED with Blynk!
In this example we'll use Arduino UNO + Ethernet Shield
5 Steps guide:
1. Connect LED to Pin 9
( http://arduino.cc/en/uploads/Tutorial/simplefade_bb.png )
In the Blynk App:
2. Create New Project
3. Email yourself Auth Token. You can do it later at any time
4. Add a Button Widget. Select Pin D9 in Widget's Settings
5. Press Play icon. Enjoy Blynking!
You can find a QR code for easy setup of this project here:
https://github.com/blynkkk/blynk-library/tree/master/examples/GettingStarted/BlynkBlink
*************************************************************/
#define BLYNK_PRINT Serial // Enables Serial Monitor
/* Fill in information from Blynk Device Info here */
//#define BLYNK_TEMPLATE_ID "TMPxxxxxx"
//#define BLYNK_TEMPLATE_NAME "Device"
//#define BLYNK_AUTH_TOKEN "YourAuthToken"
// Following includes are for Arduino Ethernet Shield (W5100)
// If you're using another shield, see Boards_* examples
#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>
void setup()
{
// See the connection status in Serial Monitor
Serial.begin(9600);
// Here your Arduino connects to the Blynk Cloud.
Blynk.begin(BLYNK_AUTH_TOKEN);
}
void loop()
{
// All the Blynk Magic happens here...
Blynk.run();
// You can inject your own code or combine it with other sketches.
// Check other examples on how to communicate with Blynk. Remember
// to avoid delay() function!
}

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libraries/Blynk/examples/GettingStarted/GetData/GetData.ino Normal file
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/*************************************************************
Blynk is a platform with iOS and Android apps to control
ESP32, Arduino, Raspberry Pi and the likes over the Internet.
You can easily build mobile and web interfaces for any
projects by simply dragging and dropping widgets.
Downloads, docs, tutorials: https://www.blynk.io
Sketch generator: https://examples.blynk.cc
Blynk community: https://community.blynk.cc
Follow us: https://www.fb.com/blynkapp
https://twitter.com/blynk_app
Blynk library is licensed under MIT license
This example code is in public domain.
*************************************************************
You can use this sketch as a debug tool that prints all incoming values
sent by a widget connected to a Virtual Pin 1 in the Blynk App.
App dashboard setup:
Slider widget (0...100) on V1
*************************************************************/
/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial
/* Fill in information from Blynk Device Info here */
//#define BLYNK_TEMPLATE_ID "TMPxxxxxx"
//#define BLYNK_TEMPLATE_NAME "Device"
//#define BLYNK_AUTH_TOKEN "YourAuthToken"
#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>
// This function will be called every time Slider Widget
// in Blynk app writes values to the Virtual Pin 1
BLYNK_WRITE(V1)
{
int pinValue = param.asInt(); // assigning incoming value from pin V1 to a variable
// You can also use:
// String i = param.asStr();
// double d = param.asDouble();
Serial.print("V1 Slider value is: ");
Serial.println(pinValue);
}
void setup()
{
// Debug console
Serial.begin(9600);
Blynk.begin(BLYNK_AUTH_TOKEN);
}
void loop()
{
Blynk.run();
}

68
libraries/Blynk/examples/GettingStarted/PushData/PushData.ino Normal file
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/*************************************************************
Blynk is a platform with iOS and Android apps to control
ESP32, Arduino, Raspberry Pi and the likes over the Internet.
You can easily build mobile and web interfaces for any
projects by simply dragging and dropping widgets.
Downloads, docs, tutorials: https://www.blynk.io
Sketch generator: https://examples.blynk.cc
Blynk community: https://community.blynk.cc
Follow us: https://www.fb.com/blynkapp
https://twitter.com/blynk_app
Blynk library is licensed under MIT license
This example code is in public domain.
*************************************************************
This example shows how value can be pushed from Arduino to
the Blynk App.
NOTE:
BlynkTimer provides SimpleTimer functionality:
http://playground.arduino.cc/Code/SimpleTimer
App dashboard setup:
Value Display widget attached to Virtual Pin V5
*************************************************************/
/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial
/* Fill in information from Blynk Device Info here */
//#define BLYNK_TEMPLATE_ID "TMPxxxxxx"
//#define BLYNK_TEMPLATE_NAME "Device"
//#define BLYNK_AUTH_TOKEN "YourAuthToken"
#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>
BlynkTimer timer;
// This function sends Arduino's up time every second to Virtual Pin (5).
void myTimerEvent()
{
// You can send any value at any time.
// Please don't send more that 10 values per second.
Blynk.virtualWrite(V5, millis() / 1000);
}
void setup()
{
// Debug console
Serial.begin(9600);
Blynk.begin(BLYNK_AUTH_TOKEN);
// Setup a function to be called every second
timer.setInterval(1000L, myTimerEvent);
}
void loop()
{
Blynk.run();
timer.run(); // Initiates BlynkTimer
}

59
libraries/Blynk/examples/GettingStarted/Servo/Servo.ino Normal file
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/*************************************************************
Blynk is a platform with iOS and Android apps to control
ESP32, Arduino, Raspberry Pi and the likes over the Internet.
You can easily build mobile and web interfaces for any
projects by simply dragging and dropping widgets.
Downloads, docs, tutorials: https://www.blynk.io
Sketch generator: https://examples.blynk.cc
Blynk community: https://community.blynk.cc
Follow us: https://www.fb.com/blynkapp
https://twitter.com/blynk_app
Blynk library is licensed under MIT license
This example code is in public domain.
*************************************************************
Rotate a servo using a slider!
App dashboard setup:
Slider widget (0...180) on V3
*************************************************************/
/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial
/* Fill in information from Blynk Device Info here */
//#define BLYNK_TEMPLATE_ID "TMPxxxxxx"
//#define BLYNK_TEMPLATE_NAME "Device"
//#define BLYNK_AUTH_TOKEN "YourAuthToken"
#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>
#include <Servo.h>
Servo servo;
BLYNK_WRITE(V3)
{
servo.write(param.asInt());
}
void setup()
{
// Debug console
Serial.begin(9600);
Blynk.begin(BLYNK_AUTH_TOKEN);
servo.attach(9);
}
void loop()
{
Blynk.run();
}

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libraries/Blynk/examples/GettingStarted/VirtualPinRead/VirtualPinRead.ino Normal file
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/*************************************************************
Blynk is a platform with iOS and Android apps to control
ESP32, Arduino, Raspberry Pi and the likes over the Internet.
You can easily build mobile and web interfaces for any
projects by simply dragging and dropping widgets.
Downloads, docs, tutorials: https://www.blynk.io
Sketch generator: https://examples.blynk.cc
Blynk community: https://community.blynk.cc
Follow us: https://www.fb.com/blynkapp
https://twitter.com/blynk_app
Blynk library is licensed under MIT license
This example code is in public domain.
*************************************************************
This sketch shows how to read values from Virtual Pins
App dashboard setup:
Slider widget (0...100) on Virtual Pin V1
*************************************************************/
/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial
/* Fill in information from Blynk Device Info here */
//#define BLYNK_TEMPLATE_ID "TMPxxxxxx"
//#define BLYNK_TEMPLATE_NAME "Device"
//#define BLYNK_AUTH_TOKEN "YourAuthToken"
#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>
// This function will be called every time Slider Widget
// in Blynk app writes values to the Virtual Pin V1
BLYNK_WRITE(V1)
{
int pinValue = param.asInt(); // assigning incoming value from pin V1 to a variable
// process received value
}
void setup()
{
// Debug console
Serial.begin(9600);
Blynk.begin(BLYNK_AUTH_TOKEN);
}
void loop()
{
Blynk.run();
}

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libraries/Blynk/examples/GettingStarted/VirtualPinWrite/VirtualPinWrite.ino Normal file
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/*************************************************************
Blynk is a platform with iOS and Android apps to control
ESP32, Arduino, Raspberry Pi and the likes over the Internet.
You can easily build mobile and web interfaces for any
projects by simply dragging and dropping widgets.
Downloads, docs, tutorials: https://www.blynk.io
Sketch generator: https://examples.blynk.cc
Blynk community: https://community.blynk.cc
Follow us: https://www.fb.com/blynkapp
https://twitter.com/blynk_app
Blynk library is licensed under MIT license
This example code is in public domain.
*************************************************************
This sketch shows how to write values to Virtual Pins
NOTE:
BlynkTimer provides SimpleTimer functionality:
http://playground.arduino.cc/Code/SimpleTimer
App dashboard setup:
Value Display widget attached to Virtual Pin V5
*************************************************************/
/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial
/* Fill in information from Blynk Device Info here */
//#define BLYNK_TEMPLATE_ID "TMPxxxxxx"
//#define BLYNK_TEMPLATE_NAME "Device"
//#define BLYNK_AUTH_TOKEN "YourAuthToken"
#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>
BlynkTimer timer;
// This function sends Arduino's up time every second to Virtual Pin (5)
void myTimerEvent()
{
// You can send any value at any time.
// Please don't send more that 10 values per second.
Blynk.virtualWrite(V5, millis() / 1000);
}
void setup()
{
// Debug console
Serial.begin(9600);
Blynk.begin(BLYNK_AUTH_TOKEN);
// Setup a function to be called every second
timer.setInterval(1000L, myTimerEvent);
}
void loop()
{
Blynk.run();
timer.run(); // Initiates BlynkTimer
}