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ESP-WROOM-02D-N4

ESP-WROOM-02D-N4

Espressif Systems
WiFi 802.11b/g/n Transceiver Module 2.4GHz ~ 2.5GHz Integrated, Trace Surface Mount
NRND2,239 in stock
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Overview

The ESP-WROOM-02D-N4 is a highly integrated 2.4GHz Wi-Fi module based on the ESP8266EX SoC. It includes 4MB of onboard SPI flash and a trace antenna, providing a complete 802.11b/g/n networking solution in a compact 18-pin SMD package.

Why Choose This Part

This module offers an integrated 4MB flash and PCB trace antenna, significantly reducing the external component count and PCB complexity. It supports multiple power-saving modes, including a 0.5uA shutdown current, and delivers a high output power of 20.5dBm for robust wireless range.

Applications

Smart Home Appliances
Integrating Wi-Fi connectivity into lighting, power plugs, and white goods for remote monitoring and control.
IoT Sensor Nodes
Utilizing low-power sleep modes and integrated Wi-Fi to transmit periodic sensor data to cloud platforms.
Industrial Wireless Control
Providing a reliable wireless bridge for RS-232/RS-485 to Wi-Fi communication in factory environments.
Battery-Powered Devices
Leveraging deep-sleep current as low as 0.9uA for long-term operation in portable electronic applications.

Key Specifications

Protocol 802.11b/g/n
Data Rate 72.2Mbps
Frequency 2.4GHz ~ 2.5GHz
Modulation 64-QAM, BPSK, CCK, OFDM
Memory Size 4MB Flash, 50kB RAM
Sensitivity -98dBm
Antenna Type Integrated, Trace
Mounting Type Surface Mount
Package / Case 18-SMD Module
Power - Output 20.5dBm
Voltage - Supply 2.7V ~ 3.6V
Serial Interfaces ADC, GPIO, I2C, I2S, SPI, PWM, UART
RF Family/Standard WiFi
Utilized IC / Part ESP8266EX
Current - Receiving 50mA ~ 56mA
Operating Temperature -40degC ~ 85degC
Current - Transmitting 120mA ~ 170mA

Getting Started

Development is typically performed using the ESP8266 RTOS SDK or the Arduino IDE with the ESP8266 core. Engineers can use the ESP-WROVER-KIT or generic ESP8266 development boards to prototype firmware before soldering the 18-SMD module to a custom PCB.

Also Consider

ESP32-WROOM-32E Espressif Systems - Consider this for applications requiring dual-core processing, Bluetooth/BLE support, and more GPIOs.
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