Description/Features: The 5PCS ESP-12F is an upgraded version of the ESP-12E, featuring the ESP8266 chip for robust wireless connectivity. This module is designed for remote serial communication, making it ideal for IoT applications. It allows devices to communicate wirelessly over a network, facilitating smart home projects, wireless sensor networks, and other remote control applications. The module's compact size and powerful capabilities a versatile choice for developers looking to integrate WiFi functionality into their projects. Specifications: Model: ESP-12F Chipset: ESP8266 Wireless Standard: 802.11 b/g Frequency: 2.4 GHz Serial Port: UART Flash Memory: 4MB Power Input: 3.0V to 3.6V I/O Pins: 11 GPIO pins Security Features: WPA/WPA2 Operating Temperature: -40°C to 125°C Color: As shown Material: PCB Package Contents: 5*modules per pack Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.