The USB to TTL Serial Converter module is an essential tool for electronics developers, students, and hobbyists. It allows easy communication between your computer (USB) and microcontrollers or embedded devices that use TTL serial communication. This module is widely used for programming and debugging boards like Arduino, ESP8266, ESP32, Raspberry Pi, and other microcontroller-based projects. It converts USB signals from your PC into TTL-level serial signals (TX and RX), making data transfer smooth and reliable. 🔧 Key Features Plug-and-play USB interface Supports TXD and RXD serial communication Provides 3.3V / 5V output (model dependent) Compact, lightweight, and easy to use Ideal for flashing firmware and debugging ⚡ Pin Details TXD – Transmit Data RXD – Receive Data GND – Ground +5V / 3.3V – Power Output 📌 Applications Programming ESP8266 / ESP32 boards Serial communication testing Firmware flashing Embedded system development DIY electronics projects This USB to TTL module is a must-have accessory for anyone working with serial-based devices. Simple, reliable, and efficient — it makes development faster and easier.