ESP32-C3-WROOM-02

Overview

The ESP32-C3-WROOM-02 is a compact wireless module based on a single-core 32-bit RISC-V processor clocked at 160 MHz. It integrates 2.4 GHz Wi-Fi and Bluetooth 5 (LE) to provide a low-cost, power-efficient connectivity solution for IoT applications. With 4MB of on-board Flash and 400kB of SRAM, it is designed to replace traditional ESP8266 designs with improved security and performance.

Why Choose This Part

This module provides a significant upgrade over older 8-bit or 16-bit MCUs by offering a modern RISC-V core with integrated wireless stacks. It balances high RF performance, reaching up to 20.5dBm output power, with aggressive power-saving modes for constrained environments. The inclusion of hardware security features and a standard PCB trace antenna simplifies regulatory compliance and RF design.

Applications

Getting Started

Developers can use the Espressif IoT Development Framework (ESP-IDF) or the Arduino core for ESP32 for rapid prototyping. The module is easily evaluated using the ESP32-C3-DevKitM-1 development board. Hardware integration is straightforward via its 19-pin SMD package, requiring only a 3.0V to 3.6V power supply and a few external decoupling capacitors.

Dev Boards

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

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,

Digi-Key 123 in stock

ESP32-C3-DevKit-Lipo Olimex LTD

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

ESP32-C3-AWS-ExpressLink-DevKit Espressif Systems

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-WROOM Family

Comparing specs that differ across variants. The current part is highlighted.

Also Consider

ESP32-WROOM-32E Espressif Systems - Provides a dual-core Xtensa processor and more GPIOs for applications requiring higher computational throughput.

ESP32-C3-MINI-1 Espressif Systems - Offers the same RISC-V core in a significantly smaller form factor for extremely space-constrained designs.

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