Name: Beetle ESP32 - C3 (RISC-V Core Development Board)
Brand: DFRobot
SKU: DFR0868
Price: 7.9 USD
Availability: InStock

Introduction

Beetle ESP32-C3, mainly intended for IoT applications, is a controller based on ESP32-C3 RISC-V 32bit single-core processor.

Beetle ESP32-C3 intended for IoT applications

Mini Size and User-Friendly

On a coin-size board of 25*20.5 mm,The Beetle ESP32-C3 is up to 13 IO ports broken out, so you don't have to worry about running out of IO ports when making projects. Moreover, its mini size effortlessly integrates into a miniature devices and offering both powerful functions and connectivity.

For instance smart wearables, the Beetle ESP32-C3 microcontroller's mini size make it an ideal choice for intelligent wearables like smartwatches and smart glasses. It can connect with smartphones, enabling health monitoring, and delivering message notifications, it accomplishes all this without sacrificing the device's form factor or increasing its weight.

Beetle ESP32-C3 Mini Size

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 (RISC-V Chip) Pin Diagram

Pin Diagram

More Safety

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.

Dual-Mode Communication

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, applicable to a wide range of IoT application scenarios.

Detailed tutorial

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.

Features

Small size: only 25*20.5 mm

More Safety:Onboard Lithium charging management function, safer charging and discharging

Comes with expansion board, more convenient to make projects or use with a screen

Dual-Mode Communication:Support WiFi and Bluetooth 5(LE) dual-mode communication

RISC-V 32bit core

Applications

Beetle ESP32-C3 (RISC-V Chip) wide range of application fields

Wide range of application fields

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

RTC SRAM: 8KB

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: DIY Smart Bathroom Light: with ESPHome & Home Assistant!

Introduction: Transform your bathroom into a smart space with this DIY project featuring ESPHome and Home Assistant for automated lighting control.

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

Introduction:

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: 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!).