ESP32-CAM

📷 ESP32-CAM – Specifications
🧠 Microcontroller & Core
Module: ESP32-S (ESP32-D0WDQ6 chip)
CPU: Dual-core 32-bit Xtensa LX6
Clock Speed: Up to 240 MHz
Architecture: 32-bit MCU with integrated Wi-Fi & Bluetooth
💾 Memory
Internal SRAM: 520 KB
ROM: 448 KB
External Flash: 4 MB (typical)
PSRAM: 4 MB (external PSRAM for image processing)
📡 Wireless Connectivity
Wi-Fi:
2.4 GHz
802.11 b/g/n
Bluetooth:
Bluetooth 4.2 + BLE
📷 Camera Features
Camera Module: OV2640 (2MP)
Max Resolution: 1600 × 1200 (UXGA)
Supported Resolutions:
UXGA (1600×1200)
SVGA (800×600)
VGA (640×480)
CIF, QVGA, HQVGA
Image Format: JPEG (hardware compression)
Lens: Fixed focus
💽 Storage
MicroSD Card Slot:
Supports up to 4 GB (FAT32) commonly, higher with tweaks
File System Support: FAT16 / FAT32
🔌 GPIO & Interfaces
Available GPIO Pins: ~9 usable (limited due to camera usage)
Interfaces Supported:
UART
SPI
I2C
PWM
ADC: Yes (limited pins)
🔋 Power & Electrical
Operating Voltage: 3.3V
Input Voltage: 5V (via 5V pin)
Typical Current Consumption:
Active (Wi-Fi + Camera): ~160–260 mA
Deep Sleep: ~6 mA (higher than standard ESP32 due to onboard components)
🔌 Programming & USB
USB Interface: ❌ Not built-in
Programming Method:
External USB-to-Serial adapter (FTDI / CP2102 / CH340) required
Boot Mode: GPIO0 must be grounded for flashing
💡 Onboard Components
Flash LED: White LED (GPIO4)
Status LED: Red power LED
Antenna:
Onboard PCB antenna
Optional external antenna (via IPEX connector on some models)
⚙️ Software & Development Support
Supported Platforms:
Arduino IDE
ESP-IDF
MicroPython (limited camera support)
Protocols Supported:
HTTP / HTTPS
MQTT
RTSP (for streaming)
Built-in: FreeRTOS, TCP/IP stack
🌐 Wi-Fi Modes
Station (STA)
Access Point (AP)
AP + STA
📐 Physical Characteristics
Dimensions: ~27 mm × 40.5 mm
Form Factor: Compact, not breadboard-friendly
Mounting Holes: Yes
🔧 Additional Features
Supports image capture & video streaming over Wi-Fi
Face detection & recognition (limited, using ESP32 libraries)
OTA (Over-the-Air) firmware updates
Deep sleep support
🧪 Typical Applications
Wireless CCTV / IP camera
Smart doorbell
Face recognition systems
IoT image monitoring
Remote surveillance projects