Beetle ESP32 - C3 (RISC-V Core Development Board)

SKU:DFR0868 Brand:DFRobot Reward Points: 79
In Stock
Topic: Arduino
Quantity Based Price
  • 3-4$7.80
  • 5-9$7.70
  • 10+$7.30
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Beetle ESP32-C3, mainly intended for IoT applications, is a controller based on ESP32-C3 RISC-V 32bit single-core processor.

On a coin-size board of 25*20.5 mm, there are up to 13 IO ports broken out, so you don't have to worry about running out of IO ports when making projects. Meanwhile, the li-ion battery charging management function is integrated on the board which allows for directly connecting the li-ion battery without extra modules, while ensuring the application size and safety.

The equipped expansion board for Beetle ESP32-C3 brings out more power sources without increasing product volume, more convenient for solder. Besides, the onboard easy-to-connect GDI saves the trouble of wiring when using a screen.

Beetle ESP32-C3 supports WiFi and Bluetooth 5 (LE) dual-mode communication that reduces the difficulty of networking, and also both Bluetooth Mesh protocol and Espressif WiFi Mesh are supported for more stable communication and a larger coverage area.

Detailed tutorials for Beetle ESP32-C3 are provided for users to use the controller’s WiFi function, such as connecting to IoT platforms like Aliyun, IFTTT, etc. Or users can use various sensors and actuators from DFRobot to build up IoT systems.

Beetle ESP32-C3 can be programmed by Arduino IDE, ESP-IDF, MicroPython, C, and Python are both supported.

V2.0.0 Modification: BOOT (IO9) and RST buttons are added for entering download boot mode and resetting more easily.

Beetle ESP32-C3 (RISC-V Chip)

Pin Diagram


  • Small size of 25*20.5 mm
  • Onboard Lithium charging management function, safer charging and discharging
  • Comes with expansion board, more convenient to make projects or use with a screen
  • RISC-V 32bit core
  • Support WiFi and Bluetooth 5(LE) dual-mode communication
  • Applications

  • IoT System
  • Specification

    Basic Parameter

  • Operating Voltage: 3.3V
  • Type-C Input Voltage: 5V DC
  • VIN Input Voltage: 5V DC
  • Operating Current: 25mA
  • Maximum Charging Current: 400mA
  • Operating Temperature: -40~105℃
  • Size: 25 x 20.5mm/0.98 x0.81”

  • Hardware Parameter

  • Processor: 32bit RISC-V Single-core processor
  • Main Frequency: 160 MHz
  • SRAM: 400KB
  • ROM: 384KB
  • Flash: 4MB
  • Clock: external crystal(32kHz); internal fast RC oscillator 17.5MHz(adjustable); PLL clock
  • USB: USB 2.0 Up to 12Mbit/s

  • WiFi

  • WiFi Protocol: IEEE 802.11b/g/n
  • Bandwidth: Supports 20 MHz, 40 MHz bandwidth in 2.4GHz band
  • WiFi Mode: Station, SoftAP, SoftAP+Station and promiscuous mode
  • WiFi Frequency: 2.4GHz
  • Frame Aggregation: TX/RX A-MPDU, TX/RX A-MSDU

  • Bluetooth

  • Bluetooth Protocol: Bluetooth 5, Bluetooth mesh
  • Bluetooth Frequency: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps

  • Ports

  • Digital I/O x13
  • LED PWM 6 Channel
  • SPI x1
  • UART x2
  • I2C x1
  • I2S x1
  • IR Transceiver: transmit channel x2, receive channel x2(random pin)
  • 2 × 12-bit SAR ADCs, up to 6 channels
  • DMA controller, with 3 transmit channels and 3 receive channels
  • Projects

    Project 1: ALIENS! Making Your Circuit Boards Into Multiuse Protoboards!

    Introduction: I like to make wearable technology and I don't want to be limited by the shape, size, and pins made on a board if I want to use it. The DFRobot ESP32-C3 boards are a great size: SMALL, but I want them to be wearable ready too!

    Project 2. Make Sports Push Buttons with ESP32-C3 to Get You Moving


    One day an idea comes to my mind, can I turn my arcade buttons into a device that helps me do sports? Sounds not bad. I decided to give it a try.

    Project 3: Experiment: 1.51" transparent display with Firebeetle ESP32-E and Beetle ESP32-C3

    Introduction: In this experiment, I try out a 1.51″ transparent OLED display. To drive the display, I use a DFRobot Firebeetle ESP32-E and a DFRobot Beetle ESP32-C3 (not at the same time!).

    Project 4: DFROBOT Beetle C3 ESP32-C3 RISC-V (BLINK)

    Introduction: Blinking with DFROBOT Beetle ESP32 - C3, a RISC-V Core Development Board

    Project 5: Cold Storage Monitoring System Based on Cellular & Wi-Fi Mesh

    Introduction: In this project will guide you to build an ML Cluster Based Cold Storage Monitoring System with Cellular connectivity.


    Shipping List

  • Beetle ESP32-C3 x1
  • Beetle ESP32-C3 Expansion Board x1
  • 2.54-8P Black Single-row Pin Connector x1




    Beetle ESP32 - C3 (RISC-V Core Development Board)

    In Stock
    • 3-4$7.80
    • 5-9$7.70
    • 10+$7.30