ESP8266MOD WiFi Module – ESP-12E 2.4GHz 802.11 b/g/n

ESP8266MOD WiFi Module – ESP-12E (2.4GHz 802.11 b/g/n)

The ESP8266MOD (ESP-12E) is one of the most popular and widely used WiFi modules in the maker and IoT community. Powered by Espressif's ESP8266 SoC, this compact module delivers full TCP/IP stack and WiFi connectivity in a tiny SMD package — making it the go-to choice for wireless IoT projects, smart home devices, and connected sensor nodes.

With its PCB trace antenna, castellated edge pads, and +25dBm transmit power, the ESP-12E offers reliable 2.4GHz WiFi range and is fully compatible with the Arduino IDE, MicroPython, NodeMCU firmware, and AT command sets.

Key Features

• ESP8266 SoC — 32-bit Tensilica L106 processor up to 160MHz
• 2.4GHz WiFi — 802.11 b/g/n, ISM band, +25dBm output power
• PCB Trace Antenna — onboard antenna for reliable wireless range
• Castellated Edge Pads — easy SMD soldering onto carrier boards
• Full TCP/IP Stack — built-in networking stack, no external MCU needed
• Multiple GPIO Pins — supports SPI, I2C, UART, PWM, ADC
• 4MB Flash Memory — ample space for firmware and OTA updates
• FCC Certified — CE/FCC markings on module shield

Specifications

• Model: ESP8266MOD / ESP-12E
• SoC: Espressif ESP8266EX
• CPU: 32-bit Tensilica L106, up to 160MHz
• Flash: 4MB (32Mbit)
• WiFi: 802.11 b/g/n, 2.4GHz ISM band
• TX Power: +25dBm
• Operating Voltage: 3.3V
• GPIO: 11 digital I/O pins
• ADC: 1 x 10-bit
• Interface: UART, SPI, I2C, PWM
• Antenna: PCB trace antenna
• Package: SMD with castellated pads

Compatible Firmware

• Arduino IDE (ESP8266 core)
• MicroPython
• NodeMCU (Lua)
• AT Command firmware
• Tasmota / ESPHome

Applications

• IoT sensor nodes and smart home devices
• WiFi-enabled Arduino projects
• Wireless data logging
• OTA (Over-the-Air) firmware update systems
• Web server and REST API clients