The sensor project is a fully automated card reader combined to a PHP API build to restrict user access in real industry environment.
- Secure access management
- Easy monitoring through dashboard
- Handle HTTPS secure requests
- Restricted access from X hour to Y hour
- Database UID encryption handled in code
- Automatic logs creation in Database
Boards manager --> esp32
Library manager --> MFRC22
First thing you need to do is to include everything for use the librairies.
#include <SPI.h>
#include <MFRC522.h>
#include "WiFi.h"
#include "HTTPClient.h"
After you will create a code for connecting your ESP32-C3 in internet or use mine
Next steps is to create the code to read a RFID or NFC tag with your ESP32-C3.
Me i have choose to read my users with a PHP API so you will need to connect the API with your ESP32-C3. You can obviously use something else like a Raspberry pi or everything else. For this i have :
-
Initialization of the HTTPClient object: An HTTPClient object named http is created to perform HTTP requests.
-
Checking for the presence of a new RFID card: The code checks if a new RFID card is present using the rfid.PICC_IsNewCardPresent() function.
-
Reading RFID card data: If a new card is present, the card data is read with rfid.PICC_ReadCardSerial().
-
Identification of the card type: The type of RFID card is determined using rfid.PICC_GetType(rfid.uid.sak), and the result is displayed on the serial port.
-
Displaying the RFID card UID: The UID (Unique Identifier) of the card is converted to a hexadecimal string and displayed on the serial port.
-
Construction of the URL: A URL is constructed by appending the UID to a base address, forming an HTTP request.
-
Initialization of the HTTP connection: The HTTPClient object is configured with the constructed URL using http.begin(url).
-
Sending an HTTP GET request: An HTTP GET request is made using http.GET(). The code then checks the server response.
-
Processing the server response: If the request is successful (HTTP code > 0), the server response is displayed on the serial port. Otherwise, a failure message is displayed.
-
Closing the HTTP connection: The HTTP connection is closed with http.end().
-
Deactivating the RFID card: The functions rfid.PICC_HaltA() and rfid.PCD_StopCrypto1() are called to deactivate the RFID card.
Used here --> Apache 2
Used here --> PostgreSQL
Clone this repository to your local machine.
Deploy the Arduino script on your Arduino IDE then select your board and run it.
Move all the PHP files inside of your web server root directory (ex: /var/www/html).
Edit the config.php file with your DB credential.
Change the request URL inside the C script, have to be accorded with your local/VPS web server address,
Now the setup is fully completed.
- index.php : Endpoint used by the card reader when requesting API, main file
- dashboard.php : Dashboard web to easily add or delete user
- deletion.php : PHP script used to delete user
- creation.php : PHP script used to create user
- config.php : DB credentials config
- Code-Arduino.ino : Arduino code for use the card reader
- schema_hardW1.png : First schema of hardware configuration
- schema_hardW2.png : Second schema of hardware configuration
