Beetle ESP32 C3 (RISC-V Core Development Board)

DFRobotSKU: RB-Dfr-1218
Manufacturer #: DFR0868

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  • Beetle ESP32 C3 (RISC-V Core Development Board)
  • Based on ESP32-C3 RISC-V 32bit single-core processor
  • Comes with an expansion board
  • Onboard Lithium charging management function
  • Support WiFi and Bluetooth 5(LE) dual-mode communication
  • Operating Voltage: 3.3 V

The Beetle ESP32 C3 (RISC-V Core Development Board) is a controller based on ESP32-C3 RISC-V 32bit single-core processor. 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. Beetle ESP32-C3 can be programmed by Arduino IDE, ESP-IDF, MicroPython, C, and Python are both supported.

  • 1x Beetle ESP32-C3
  • 1x Beetle ESP32-C3 Expansion Board
  • 1x 2.54-8P Black Single-row Pin Connector


  • 25 x 20.5 mm / 0.98 x 0.81 inch
  • Operating Voltage: 3.3 V
  • Type-C Input Voltage: 5 V DC
  • VIN Input Voltage: 5 V DC
  • Operating Current: 25 mA
  • Maximum Charging Current: 400 mA
  • Operating Temperature: -40 ~ 105 °C


  • Processor: 32bit RISC-V Single-core processor
  • Main Frequency: 160 MHz
  • SRAM: 400 KB
  • ROM: 384 KB
  • Flash: 4 MB
  • RTC SRAM: 8 KB
  • Clock: external crystal (32 kHz); internal fast RC oscillator 17.5 MHz (adjustable); PLL clock
  • USB: USB 2.0 Up to 12 Mbit/s


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


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


  • 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)
  • 2x 12-bit SAR ADCs, up to 6 channels
  • DMA controller, with 3 transmit channels and 3 receive channels

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