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DFRobot DFR0975/DFR0975-U Development Boards

DFRobot DFR0975/DFR0975-U Development Boards are integrated with high-performance ESP32-S3 MCUs with an OV2640 camera for image recognition and WiFi®/BLUETOOTH® 5 communication. These compact and powerful development boards are designed for AI and IoT applications, particularly those involving computer vision and image recognition. The ESP32-S3-WROOM-1-N16R8 comes with 16MB Flash and 8MB PSRAM for storing more data. These boards offer a camera interface onboard for easy connection with a camera. The DFR0975 board comes with an OV2640 camera that offers 2 megapixels, 68° FOV, and up to 1600 x 1200 resolution. These boards are ideal for AI-Powered image recognition, smart home and security, industrial IoT and machine vision, edge AI and TinyML, wireless video streaming, and voice control interfaces.

The DFR0975/DFR0975-U development boards support WiFi and BLUETOOTH 5 (LE) dual-mode communication that reduces the difficulty of networking. This FireBeetle 2 ESP32-S3 can be programmed by Arduino IDE, ESP-IDF, and MicroPython.

Features

  • ESP32-S3 module with AI acceleration
  • 16MB Flash and 8MB PSRAM, more storage space
  • Onboard camera interface and independent camera power supply, easy to connect, and strong anti-interference
  • Power management integrated, supports Li-ion battery charging and hardware ON/OFF controlling
  • Onboard GDI for easy connection with screens
  • Wi-Fi and BLUETOOTH® dual-mode communication

Hardware Features

  • Processor Xtensa® dual-core 32-bit LX7 microprocessor
  • 240MHz main frequency
  • 512KB SRAM
  • 384KB ROM
  • 16MB Flash
  • 8MB PSRAM
  • 16KB RTC SRAM
  • USB 2.0 OTG full-speed

Applications

  • AI-Powered image recognition
  • Smart home and security
  • Industrial IoT and machine vision
  • Edge AI and TinyML
  • Wireless video streaming
  • Voice control interfaces

Specifications

  • WiFi®:
    • IEEE 802.11b/g/n WiFi protocol
    • Bandwidth supports 20MHz and 40MHz at 2.4GHz band
    • WiFi modes include Station, SoftAP, and SoftAP+Station combined mode
    • 2.4GHz WiFi frequency
    • TX/RX A-MPDU, and TX/RX A-MSDU frame aggregation
  • BLUETOOTH®:
    • BLUETOOTH 5 and BLUETOOTH mesh protocol
    • 125Kbps, 500Kbps, 1Mbps, and 2Mbps BLUETOOTH frequencies
  • Ports:
    • Digital I/O x26
    • LED PWM 8-channel
    • SPI x2
    • UART x3
    • I2C x2
    • I2S x2
    • IR Transceiver transmit channel x5, receive channel x5
    • 2 x 12-bit SAR ADC, 20-channel
    • DMA controller transmit channel x5, receive channel x5

Board Overview

DFRobot DFR0975/DFR0975-U Development Boards

Pin Diagram

DFRobot DFR0975/DFR0975-U Development Boards

Dimensions

Mechanical Drawing - DFRobot DFR0975/DFR0975-U Development Boards

Additional Resources

Published: 2025-09-10 | Updated: 2025-11-03