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DFRobot DFR1145 Development Board

DFRobot DFR1145 Development Board features a 32-bit dual-core processor with a clock frequency of 240MHz and 4MB of built-in flash memory. This FireBeetle 2 ESP32-S3(N4) is a main control board designed based on the Espressif ESP32-S3-WROOM-1-N4 module. The ESP32-S3 chip used in the DFR1145 supports AI acceleration, which is a standout feature for edge computing applications. The DFR1145 development board supports dual-mode communication of Wi-Fi® and BLUETOOTH® 5.0. This board supports both USB and external lithium battery power supply and can automatically switch between power sources in dual power supply mode. With dimensions of 25.4mm x 60mm, it has onboard Wi-Fi and BLUETOOTH® antennas and adopts a stamp hole design. This design makes it easy to embed or integrate into PCB prototypes. The DFR1145 board is suitable for home automation renovation, IoT device prototyping, IoT remote monitoring, and remote robot control.

Features

  • Equipped with an ESP32-S3-WROOM-1-N4 dual-core module, supporting AI acceleration
  • Clock frequency up to 240MHz, with built-in 512KB SRAM and 4MB Flash
  • Supports dual-mode communication of Wi-Fi and BLUETOOTH® 5 (LE)
  • Integrated power management, supporting lithium battery charging and hardware power on/off
  • Onboard independent GDI display interface, enabling quick connection to display screens
  • Supports various programming methods such as Arduino IDE, ESP-IDF, and MicroPython
  • Compact design with small size, suitable for IoT and AIoT projects with limited space and embedded systems
  • Wi-Fi modes: Station mode, SoftAP mode, SoftAP+Station mode, and mixed mode
  • 2.54mm pin pitch
  • Interface FireBeetle V2 series compatible
  • 25.4mm x 60mm dimensions

Applications

  • Home automation renovation
  • IoT device prototyping
  • IoT remote monitoring
  • Remote robot control
  • Voice command recognition
  • Text recognition
  • Sensor data recognition requirements

Specifications

  • Input voltage:
    • 5V DC USB-C interface
    • 3.7V Li-ion PH2.0 interface
    • 5V VCC DC pin
  • 2.4GHz band supports 20MHz and 40MHz Wi-Fi bandwidth
  • 2.4GHz Wi-Fi frequency
  • 25Kbps, 500Kbps, 1Mbps, and 2Mbps bluetooth frequencies

Board Overview

DFRobot DFR1145 Development Board

Dimensions

Mechanical Drawing - DFRobot DFR1145 Development Board
Published: 2025-09-22 | Updated: 2025-11-03