ESP32-C3-WROOM-02-N4

Overview

The ESP32-C3-WROOM-02-N4 is a compact, cost-effective IoT module featuring a 32-bit RISC-V single-core processor operating at up to 160MHz. It integrates 2.4 GHz Wi-Fi and Bluetooth 5 (LE) connectivity with 4MB of embedded SPI flash and a PCB trace antenna. Designed for secure, low-power applications, it provides a modern replacement for ESP8266-based designs with improved performance and security features.

Why Choose This Part

This module offers a significant security upgrade with hardware-accelerated RSA-3072 and AES-128/256 engines for secure boot and flash encryption. Its single-core RISC-V architecture provides a high performance-to-power ratio, drawing as little as 130uA in light-sleep mode while maintaining network connectivity.

Applications

Getting Started

Development is primarily supported through the Espressif IoT Development Framework (ESP-IDF) or the Arduino IDE with the ESP32 core. For hardware evaluation, the ESP32-C3-DevKitM-1 is the official prototyping platform, and it features a built-in USB Serial/JTAG controller for easy debugging without external probes.

Dev Boards

Development boards and breakout modules featuring the ESP32-C3-WROOM-02-N4 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 - Choose this if your application requires a dual-core Xtensa processor and classic Bluetooth support rather than just BLE.

ESP32-C3-WROOM-02U Espressif Systems - Identical internal specs but features a U.FL connector for an external antenna instead of a PCB trace antenna.

ESP32-S3-WROOM-1 Espressif Systems - Provides significantly more GPIOs, native USB OTG, and AI acceleration instructions for edge computing tasks.