Published July 26, 2018 © MPL-2.0

Lock & Unlock Door

Easy way to unlock and Lock door with Blynk app. Also, I will add code for to Lock & Unlock door by RFID and fingerprint sensor. 3 in 1.

BeginnerProtip1 hour2,811

Things used in this project

Hardware components

Espressif ESP8266 ESP-12E

Servos (Tower Pro MG996R)

Jumper wires (generic)

Software apps and online services

Blynk

Hand tools and fabrication machines

3D Printer (generic)

Story

I have code that works with with Blynk app and RFID Module. Currently, I am working on the Fingerprint sensor code. So you can open door by Blynk app, RFID Module, and Fingerprint Sensor.

Code

Blynk Unlock and Lock

#define BLYNK_PRINT Serial
#include <SPI.h>
#include <BlynkSimpleEsp8266.h>
#include <Servo.h>
#include <ESP8266WiFi.h>


// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).

char auth[] = "YourAuthToken";

Servo servo;  


void setup()  
{
  Serial.begin(115200);
  Blynk.begin(auth, "YourNetworkName", "YourPassword");
  servo.attach(16); //ESP8266 pin D0 or GPIO16 // V1 
}
BLYNK_WRITE(V1)  
{
  servo.write(param.asInt());  
}
  
void loop()  
{ 
  Blynk.run();
}