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--- iothings:proiecte:2025sric:rfidscanner [2025/05/28 23:20]
flaviu.ghena
+++ iothings:proiecte:2025sric:rfidscanner [2025/05/29 10:07] (current)
flaviu.ghena
@@ Line 22: / Line 22: @@
 ===== Hardware Description =====
-Parts List:
+{{:iothings:proiecte:2025sric:flaviu4.jpg?600|}}
-ESP32-WROOM-32: Main microcontroller for processing and connectivity.
-RFID-RC522 Module: Reads RFID card UIDs.
-Green LED: Indicates authorized access.
-Red LED: Indicates denied access.
-Resistors (2x): Current-limiting resistors for LEDs
-Breadboard/Jumper Wires: For prototyping connections.
-Power Supply: 3.3V for ESP32 and RC522.
-ESP32-WROOM-32:
+**Parts List:**
-- Connects to WiFi for cloud communication.
+  * ESP32-WROOM-32: Main microcontroller for processing and connectivity.
-- Interfaces with the RC522 via SPI (GPIO 5, 18, 19, 23).
+  * RFID-RC522 Module: Reads RFID card UIDs.
-- Controls LEDs via GPIO 25 (green) and 26 (red).
+  * Green LED: Indicates authorized access.
+  * Red LED: Indicates denied access.
+  * Resistors (2x): Current-limiting resistors for LEDs
+  * Breadboard/Jumper Wires: For prototyping connections.
+  * Power Supply: 3.3V for ESP32 and RC522.
-RFID-RC522:
+**ESP32-WROOM-32:** \\
-- Communicates with ESP32 via SPI pins.
+- Connects to WiFi for cloud communication.\\
-- Powered by 3.3V
+- Interfaces with the RC522 via SPI (GPIO 5, 18, 19, 23).\\
-- Antenna gain boosted for better sensitivity.
+- Controls LEDs via GPIO 25 (green) and 26 (red).\\
-LEDs:
+**RFID-RC522:** \\
-- Green LED: Activated for valid cards or manual "grant" commands.
+- Communicates with ESP32 via SPI pins.\\
-- Red LED: Activated for invalid cards or manual "deny" commands.
+- Powered by 3.3V \\
+- Antenna gain boosted for better sensitivity.\\
+**LEDs:** \\
+- Green LED: Activated for valid cards or manual "grant" commands.\\
+- Red LED: Activated for invalid cards or manual "deny" commands.\\
+{{:iothings:proiecte:2025sric:flaviu3.png?600|}}
 ===== Functionality Breakdown =====
-Key Components Explained
+**Key Components**
+**RFID Handling:**
+- The MFRC522 library interfaces with the RFID reader\\
+- Cards are identified by their UID and converted to decimal format\\
+- Reader automatically resets after periods of inactivity\\
+**Access Control Logic:**
+- Compares scanned card IDs against authorized list\\
+- Provides immediate visual feedback via LEDs\\
+- Green LED for authorized access, red for denied\\
+**Firebase Integration:**
+- Stores all access events with timestamps\\
+- Allows remote control via the ledControl path\\
+- Uses anonymous authentication for security\\
+**Realtime Database rules**
+<code>
+{
+  "rules": {
+    "rfidSystem": {
+      "control": {
+        ".read": true,
+        ".write": true
+      },
+      "logs": {
+        ".read": true,
+        ".write": true
+      },
+      "ledControl": {
+        ".read": true,
+        ".write": true
+      }
+    }
+  }
+}
+</code>
+{{:iothings:proiecte:2025sric:flaviu6.png?300|}}
+**Telegram Notifications:**
+- Sends instant alerts for all access attempts\\
+- Differentiates between authorized and unauthorized access\\
+- Includes system startup notification\\
+{{:iothings:proiecte:2025sric:flaviu2.jpeg?250|}}
+**Web Interface:**
+- Provides real-time access logs display\\
+- Allows manual access control via buttons\\
+- Shows system connection status\\
+- The system combines local hardware control with cloud connectivity for a comprehensive access control solution with remote monitoring capabilities.\\
+**Error Handling:**
+- Auto-resets RFID reader if inactive.\\
+- Reconnects to WiFi/Firebase if disconnected.\\
-RFID Handling:
+^ RC522 Pin  ^ ESP32 Pin  ^
-- The MFRC522 library interfaces with the RFID reader
+| SDA       | GPIO 5     |
-- Cards are identified by their UID and converted to decimal format
+| SCK       | GPIO 18    |
-- Reader automatically resets after periods of inactivity
+| MOSI      | GPIO 23    |
+| MISO      | GPIO 19    |
+| IRQ       | Not connected |
+| GND       | GND        |
+| RST       | GPIO 22    |
+| 3.3V      | 3.3V       |
-Access Control Logic:
+^ LED Pin         ^ ESP32 Pin  ^
-- Compares scanned card IDs against authorized list
+| GREEN LED PIN   | GPIO 25    |
-- Provides immediate visual feedback via LEDs
+| RED LED PIN     | GPIO 26    |
-- Green LED for authorized access, red for denied
-Firebase Integration:
+{{:iothings:proiecte:2025sric:flaviu1.png?600|}}
-- Stores all access events with timestamps
-- Allows remote control via the ledControl path
-- Uses anonymous authentication for security
-Telegram Notifications:
-- Sends instant alerts for all access attempts
-- Differentiates between authorized and unauthorized access
-- Includes system startup notification
-Web Interface:
-- Provides real-time access logs display
-- Allows manual access control via buttons
-- Shows system connection status
-- The system combines local hardware control with cloud connectivity for a comprehensive access control solution with remote monitoring capabilities.
-Error Handling:
-- Auto-resets RFID reader if inactive.
-- Reconnects to WiFi/Firebase if disconnected.
 ===== Code Breakdown =====
@@ Line 398: / Line 448: @@
 ===== Webpage =====
+{{:iothings:proiecte:2025sric:flaviu5.png?600|}}
 <code>
 <!DOCTYPE html>
@@ Line 551: / Line 604: @@
 - Future enhancements could include adding biometric verification or integrating with physical locks.
+===== Demo =====
+<html><iframe width="456" height="811" src="https://www.youtube.com/embed/BdYKw6g49gY" title="RFID22" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe></html>
+<html><iframe width="456" height="811" src="https://www.youtube.com/embed/UwR_TnAOcD8" title="RFID11" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe></html>
 ===== References =====
 [1] https://randomnerdtutorials.com/control-esp-gpios-firebase-web-app/ \\
 [2] https://randomnerdtutorials.com/esp32-door-status-telegram/