The ESP-12F ESP8266 WiFi Module is a compact and powerful 2.4GHz wireless IoT board based on the ESP8266 chipset. It allows microcontrollers and embedded systems to connect to WiFi networks and communicate with cloud servers, mobile apps, and local routers. ESP-12F is widely used for home automation, smart devices, wireless sensors, IoT control systems, and DIY WiFi projects. It supports both Station (STA) and Access Point (AP) modes, making it flexible for different networking applications.
Core Module Features
• WiFi Chipset: ESP8266 (ESP-12F version)
• Wireless Frequency: 2.4GHz WiFi (802.11 b/g/n)
• CPU: 32-bit Tensilica L106
• Onboard Antenna: PCB WiFi antenna built-in
• Flash Memory: Typically 4MB (varies by board batch)
• Operating Modes: Station (STA) / Access Point (AP) / Both
Electrical & Interface
• Operating Voltage: 3.3V DC
• Logic Level: 3.3V (Not 5V tolerant)
• Communication Interface: UART (TX / RX)
• GPIO Pins: Multiple digital I/O pins available
• ADC Pin: 1× Analog input (A0, 0–1V range internally)
• Supports: PWM / I2C / SPI (via GPIO)
Performance & Connectivity
• Stable wireless range for IoT applications
• Supports TCP/IP communication
• Can be programmed using AT commands or ESP firmware
• Compatible with Arduino IDE (ESP8266 core), NodeMCU, MicroPython
Physical & Integration
• Compact SMD module design
• Requires proper 3.3V regulator for stable operation
• Breadboard use requires adapter board or PCB breakout
Applications
• IoT Home Automation (WiFi switch, smart relay control)
• Wireless sensor monitoring (temperature, gas, motion, etc.)
• Web server / Web client projects
• MQTT / HTTP based IoT systems
• Remote data logging and monitoring
Pro Tip
• Use a strong 3.3V supply (minimum 500mA recommended)
• Never connect GPIO directly to 5V signals
• For easy use on breadboard, pair it with ESP-01/ESP-12 adapter
• Pull GPIO0 LOW for flash mode (programming)
Package Includes
• 1 × ESP-12F ESP8266 WiFi Module