ESP32-S3-CAM-OV5640

The ESP32-S3-CAM-OV5640 is an AIoT camera development board by Waveshare, based on the powerful ESP32-S3 microcontroller. The OV5640 camera module, with a maximum resolution of 2592 × 1944 pixels, is connected via a 24-pin DVP interface. The Xtensa 32-bit LX7 dual-core processor operates at up to 240 MHz, providing sufficient computing power for demanding AI applications. Onboard, it features 8 MB PSRAM and 16 MB Flash, complemented by the integrated 512 KB Static RAM and 384 KB ROM of the ESP32-S3. Wireless communication is handled by an integrated 2.4-GHz Wi-Fi and Bluetooth LE dual-mode module with a ceramic onboard antenna and an IPEX-1 connector for an external antenna. A dual microphone array with noise suppression and echo cancellation enables high-quality voice input, while the NS4150B amplifier chip and a speaker output (3 W, 4 Ω) manage audio output. The 18-pin display FPC interface allows compatible Waveshare displays to be connected via SPI or QSPI. The board supports access to online AI platforms like Doubao and DeepSeek, making it suitable for voice interaction, question-answer recognition, and real-time Edge-Impulse object detection. An integrated lithium battery charging circuit with a GH1.25-2-pin connector enables mobile operation with a 3.7V lithium battery. Additional interfaces include USB Type-C, I2C, UART, and a TF card slot. The CH32V003F4U6 expansion IO chip extends the available GPIO resources of the system. Two user-configurable buttons and a USER-LED are available for custom functions.

Recommended Accessories

Features

OV5640 camera with a maximum resolution of 2592 × 1944 pixels connected via a 24-pin DVP interface.
ESP32-S3R8 processor with dual-core LX7 up to 240 MHz, 8 MB PSRAM, and 16 MB Flash as the computational foundation.
Integrated 2.4-GHz Wi-Fi and Bluetooth LE enable wireless communication without additional modules.
Dual microphone array with noise suppression and echo cancellation, along with a speaker output, enables full audio processing.
SPI/QSPI display interface (18-pin FPC) allows direct connection of compatible Waveshare displays.
Onboard charging circuit for 3.7V lithium batteries enables battery-powered mobile operation.

Application Examples

Development of AI voice assistants with real-time voice recognition and speaker output.
Building smart surveillance cameras with Wi-Fi transmission and object detection via Edge Impulse.
Prototyping for HMI applications with connected display and camera input.
Integration into IoT automation systems with visual and acoustic control.
Connection to online AI platforms for question-answer interaction and image classification.

Documentation

Wiki

Board Pinout

Technical Specifications

Manufacturer: Waveshare
Manufacturer SKU: 33699
EAN: 0792649738641
Microcontroller: ESP32-S3R8 (Xtensa Dual-Core LX7, up to 240 MHz)
SRAM (internal): 512 KB Static RAM
ROM (internal): 384 KB
PSRAM (onboard): 8 MB
Flash (onboard): 16 MB
Camera: OV5640, max. 2592 × 1944 px
Camera Interface: 24-Pin DVP
Camera Image Formats: RGB565, YUV/YCbCr422
Camera Focal Length: 4.1 mm
Camera Aperture: f/2.8
Camera Field of View (FOV): D: 68°, H: 55°, V: 42°
Camera Sensor Size: 1/4 Inch
Wireless: 2.4 GHz Wi-Fi + Bluetooth LE (Dual-Mode)
Antenna: Ceramic onboard antenna, IPEX-1 connector for external antenna
Audio Input: Dual microphone array (ES7210), noise suppression, echo cancellation
Audio Output: NS4150B amplifier, 3 W, 4 Ω, speaker connector
Audio Codec: ES8311
Display Interface: 18-Pin FPC, SPI / QSPI
Additional Interfaces: USB Type-C, I2C, UART, TF card slot
Expansion IO: CH32V003F4U6
Battery Connector: GH1.25 2-Pin, 3.7V lithium battery, with charge/discharge function
Charge Management: ETA6098
Power Supply: USB Type-C or 3.7V lithium battery
Packaging Dimensions: 80 × 70 × 15 mm
Gross Weight: 21 g