ESP-WROOM-02 WiFi 802.11 Module


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SMD Module with an Embedded ESP8266EX for testing and development

37.00 AED

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42.00 AED

The ESP-WROOM-02 module is a highly integrated WiFi 802.11 b/g/n module that consumes extremely low power while providing a wireless internet connection for embedded devices. With a very small form factor, this wireless module easily assimilates into resource limited devices. These features make it a great choice for OEMs to connect their IoT (Internet of Things) applications. ESP-WROOM-02 is a 32-bit low power micro-controller (MCU) that integrates with TCP/IP network stacks; the included 10-bit ACD interfaces with HSPI, SDIO, UART, PWM, I2C and I2S. Programs and firmware can be stored in the integrated SPI flash with 32MB capacity.This WiFi module has a wake up and transmit packet speed of less than 2ms which makes it a great solution for applications including IoT. Examples are:

  • Home automation and home security
  • Smart lights and plugs
  • Home appliances
  • Sensors and detectors
  • Security alarms
  • Monitor and scales
  • Mesh Networks
  • Industrial Wireless Control
  • Wearable Electronics
  • WiFi Location-aware Devices
  • WiFi Position System Beacons


ESP-WROOM-02 WiFi Module Features:

  • 802.11 b/g/n
  • Fast sleep/wake context switching
  • Adaptive radio biasing
  • Advance signal processing
  • Integrated low power 32-bit MCU
  • Integrated TCP/IP protocol stack
  • Integrated TR switch, balun, LNA, power amplifier and matching network
  • Integrated PLL, regulators and power management unit
  • Supports security protocols WPA/WPA2
  • Supports Station / SoftAP / Station+SoftAP operation modes
  • Supports Tranmission Control Protocol (TCP) and User Datagram Protocol (UDP)
  • Supports WiFi Protected Setup (WPS) for easy setup and configuration
  • Supports mesh networking
  • Supports Smart Link Function for both Android and iOS devices
  • Supports Cloud Server Development
  • Custom firmware development via SDK
  • Download and write firmware via host
  • User configuration via AT Instruction Set, Cloud Server and Android/iOs App
  • FCC, CE and TELEC certified


  • FREQUENCY BAND: 2.4GHz-2.5GHz (2400M-2483.5M)
    • Security: WPA/WPA2
    • Encryption: WEP/TKIP/AES
    • Wi-Fi mode: station/SoftAP/SoftAP+station
    • UART, I2S
    • Wake up and transmit packets in < 2ms
    • WiFi: 802.11 b/g/n
  • POWER CONSUMPTION: Standby power consumption of <1.0mW (DTIM3)
  • VOLTAGE: Operating: 3.0 ~ 3.6V
  • POWER: 
    • Deep sleep power <10uA, Power down leakage current < 5UA
    • +20dBm output power in 802.11b mode
  • FIRMWARE Upgrade: UART Download / OTA (via network)
  • ANTENNA: 3DBi PCB-on-board antenna
  • OPERATING TEMPERATURE RANGE : -40ºC to 125ºC (-40ºF to 257ºF)
  • DIMENSIONS: 18mm x 20mm x 3mm



ESP-WROOM-02 WiFi Module Data Sheet




Espressif IoT App

ESP8266EX Development Resources

Firmware Files and Resources

ESP-WROOM-02 PCB Design and Module Placement Guide

Guide: Getting Started with ESP-WROOM-02 Board