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ESP32-C3-DEVKITC-02U

ESP32-C3-DEVKITC-02U

Espressif Systems
The ESP32-C3-DEVKITC-02U transceiver evaluation board by Espressif Systems is a development tool designed for RF, RFID, and wireless applications, ideal for modern IoT projects. It features a 32-bit RISC-V single-core processor running at 160MHz, with 400KB SRAM and 384KB ROM. The board supports 802.11 b/g/n Wi-Fi and Bluetooth (BLE) at 2.4GHz, offering reliable wireless connectivity. With 22 GPIO pins, 3 x SPI, 2 x UART, I2C, I2S, RMT, LED PWM, USB Serial/JTAG, GDMA, TWAI, and a 12-bit ADC, this board provides I/O options for various network and sensor integrations.
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Overview

The ESP32-C3-DEVKITC-02U is an Espressif development board built around the ESP32-C3-WROOM-02U module. It provides a 32-bit RISC-V single-core processor (up to 160 MHz), built-in 2.4 GHz Wi-Fi and Bluetooth Low Energy, and a rich set of peripherals for prototyping wireless IoT devices.

Why Choose This Part

Provides an integrated, ready-to-use development platform with the ESP32-C3 RISC-V core plus both Wi-Fi and BLE radios, reducing time-to-prototype. It exposes a large set of peripherals (UART, SPI, I2C, I2S, RMT, PWM, ADC, GDMA, TWAI) and about 22 GPIOs, making it flexible for sensor and network integrations. The board is supported by Espressif toolchains and firmware ecosystems for rapid software development.

Applications

Battery-powered IoT sensors
Low-power Wi-Fi/BLE sensor nodes with sleep modes and simple local processing.
Wireless bridging and telemetry
Bridge BLE sensors to Wi-Fi backhaul or send telemetry to cloud services over 802.11 b/g/n.
Home automation endpoints
Smart switches, relays, and environmental sensors that require Wi-Fi connectivity and GPIO control.
Prototype firmware and RF testing
Rapid hardware and RF feature development using on-board USB serial/JTAG and multiple serial/SPI/I2C interfaces.

Key Specifications

Type Transceiver; 802.11 b/g/n (Wi-Fi, WiFi, WLAN), Bluetooth 5.x (BLE)
Contents Board(s)
Frequency 2.4GHz
Utilized IC / Part ESP32-C3-WROOM-02U

Getting Started

Use Espressif ESP-IDF as the primary SDK; the board is also supported by the Arduino Core for ESP32-C3 for simpler projects. Install Espressif toolchain (xtensa or RISC-V toolchain as required), the cp210x/CDC USB drivers if needed, and follow Espressif's getting-started docs for flashing via the on-board USB Serial/JTAG. Example projects and libraries are available from Espressif's GitHub repositories.

Dev Boards

Development boards and breakout modules featuring the ESP32-C3-DEVKITC-02U or compatible chips — ready to use for prototyping.

ESP32-C3 ESP32-C Bluetooth® 5.x (BLE) Transceiver 2.4GHz Evaluation Board
Digi-Key 108 in stock
ESP32-C3-DEVKITM-1-N4X Espressif Systems
Multiprotocol Development Tools ESP32-C3-DevKitM-1 is an entry-level development board equipped with ESP32-C3-MINI-1 or
Digi-Key Mouser 934 in stock
ESP32-C3-DevKitM-1 Espressif
Lower-cost Espressif dev kit with BLE and Wi-Fi capabilities if Wi-Fi 6 or 802.15.4 are not required.
Digi-Key 213 in stock
Development Boards & Kits - Wireless The ESP32-C3-AWS-ExpressLink-DevKit is a development board that hosts Espressif s A
Mouser 72 in stock
ESP32-C3-LYRA Espressif Systems
The Espressif Systems microcontroller evaluation board is a powerful tool designed for developers working with RF, RFID,

Also Consider

ESP32-WROOM-32 Espressif Systems - Higher-performance dual-core ESP32 module with Wi-Fi and Bluetooth Classic/BLE if you need more CPU and Bluetooth Classic support.
ESP32-C3-WROOM-02 Espressif Systems - Same ESP32-C3 SoC in a module form for use on custom PCBs when you want the same radio and peripheral set without the DevKit board.

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