Microcontroller: Based on the ESP8266 Wi-Fi SoC (System on Chip) with integrated TCP/IP stack.

Wi-Fi: Supports 802.11 b/g/n wireless standards for seamless internet connectivity.

USB Interface: Built-in CP2102 USB-to-serial converter for easy programming and serial communication via USB.

Operating Voltage: 3.3V logic with onboard voltage regulator to accept 5V USB input.

GPIO Pins: Multiple digital and analog pins exposed for sensor and actuator interfacing.

Flash Memory: Typically 4MB (varies by version) for storing firmware and user programs.

Programming: Supports programming with Arduino IDE, Lua, MicroPython, and other environments.

Power Supply: Powered via USB or external 3.3V source.

Built-in Features:

Integrated Wi-Fi antenna

Onboard reset and flash buttons

Micro USB port for power and programming

Compact & Lightweight: Ideal for IoT projects, home automation, and wireless sensor networks.