ESP32-CAM WiFi + Bluetooth Camera Module – OV2640 / RHYX M21 | AI + IoT Development Board with Camera Support, TF Slot, FOTA, FreeRTOS

Description

• The ESP32-CAM is a compact and ultra-versatile Wi-Fi + Bluetooth (BLE) development board equipped with a powerful dual-core 32-bit CPU, making it ideal for AI, IoT, and image-processing applications. With support for OV2640 / RHYX M21 / OV7670 cameras, built-in flash, and TF card storage, this module is perfectly suited for home automation, surveillance, remote image transmission, and smart device integration.

  Capable of running FreeRTOS, supporting FOTA (Firmware Over-The-Air) updates, and operating in STA, AP, or dual mode, the ESP32-CAM is the perfect solution for developers looking to integrate wireless connectivity and camera functionality into a small, energy-efficient form factor.

  Whether you’re building a smart doorbell, facial recognition camera, or remote monitoring system, the ESP32-CAM offers robust performance at an unbeatable price.

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  ✅ Key Features

  • Wi-Fi 802.11 b/g/n + Bluetooth/BLE 4.2

  • Dual-core 32-bit CPU (up to 240 MHz, 600 DMIPS)

  • Built-in 520KB SRAM + external 4MB PSRAM

  • Camera support: OV2640, RHYX M21, OV7670

  • Built-in support for image transmission over Wi-Fi

  • Micro SD (TF) card slot for local image storage

  • Built-in flash LED for low-light photography

  • Supports serial and OTA firmware upgrades

  • Interfaces: UART, SPI, I2C, PWM, ADC, DAC

  • Ultra-low power consumption with multiple sleep modes

  • Embedded LwIP stack and FreeRTOS

  • Supports SmartConfig / AirKiss for easy Wi-Fi setup

  • Supports STA / AP / STA+AP hybrid modes

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  Technical Specifications

  Parameter	Value
  Processor	ESP32 Dual-core 32-bit
  Clock Speed	Up to 240 MHz
  RAM	520 KB (built-in) + 4MB PSRAM
  Flash	Supports MicroSD TF card (up to 4–16GB)
  Camera Interface	OV2640, RHYX M21, OV7670
  Wireless Support	Wi-Fi 802.11b/g/n + Bluetooth/BLE
  Interfaces	UART, SPI, I2C, PWM, ADC, DAC
  Operating Modes	STA / AP / STA+AP
  Flash LED	Yes
  Dimensions	~27mm x 40.5mm
  Power Supply	5V via onboard headers or USB

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  Package Includes

  Version 1:

  • 1 × ESP32-CAM WiFi + Bluetooth Module

  • 1 × OV2640 Camera

  Version 2:

  • 1 × ESP32-CAM WiFi + Bluetooth Module

  • 1 × RHYX M21 Camera

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  Applications

  • Remote surveillance and IP camera projects

  • Smart doorbells and facial recognition systems

  • AI + computer vision prototyping

  • Object detection for smart logistics

  • IoT smart homes and sensor networks

  • Educational and robotics projects (Arduino-compatible)

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  FAQ – Frequently Asked Questions

  Q1: Does the ESP32-CAM support Arduino IDE?
  ✅ Yes! It can be programmed using the Arduino IDE, ESP-IDF, or PlatformIO.

  Q2: What is the maximum image resolution supported by OV2640?
  The OV2640 supports up to 1600×1200 (UXGA) resolution.

  Q3: Can I save images locally?
  ✅ Yes, you can store captured images directly to a TF/MicroSD card.

  Q4: Can I stream video over Wi-Fi?
  ✅ Absolutely. ESP32-CAM supports MJPEG streaming over local network.

  Q5: Is there onboard USB for programming?
  ⚠️ No, you’ll need an external USB-to-TTL adapter (e.g., FTDI or CP2102) to program it.