CH340G USB To TTL(Serial) Converter For Arduino Nano Raspberry Pi

Product Description The PL2303 USB to RS232 TTL Converter Adapter is a cost-effective and reliable solution for bridging the gap between a computer's USB port and a microcontroller's serial UART interface. Based on the widely-used Prolific PL2303 chipset, this module is designed for firmware programming, serial debugging, and data logging for devices like the Arduino Nano, ESP8266, and Raspberry Pi. It features a convenient dual-voltage output (3.3V and 5V), allowing it to interface safely with both legacy 5V systems and modern low-voltage sensors. Its compact "dongle" design and protected heat-shrink casing make it a durable addition to any engineer's toolkit for rapid prototyping and hardware troubleshooting.

Key Features

• Universal Serial Bridge: Converts USB signals into standard TTL serial data for easy communication with microcontrollers.

• Dual Power Outputs: Provides both 3.3V and 5V pins to power small projects directly from the USB port.

• Plug-and-Play Compatibility: Recognized as a standard COM port on most Windows operating systems (drivers required).

• Robust Protection: Includes an on-board 500mA self-resetting fuse to protect your computer's USB port from short circuits.

• Transparent Shielding: Encased in clear heat-shrink tubing to prevent accidental shorts while allowing view of status LEDs.

Technical Details

• Chip Architecture: Utilizes the Prolific PL2303HX or TA revision for stable asynchronous serial data transfer.

• Full UART Support: Handles 7 or 8 data bits, 1 or 2 stop bits, and even/odd/mark/space/no parity.

• Baud Rate Flexibility: Supports a wide range of standard baud rates from 75 bps up to 1.2 Mbps.

• Integrated Transceiver: Built-in USB 1.1/2.0 compatible transceiver with an internal clock generator.

• Status Monitoring: Features on-board LEDs to provide visual confirmation of power and data transmission (TX/RX).

• Signal Pinout: Standard 5-pin breakout: 5V, 3.3V, TXD (Transmit), RXD (Receive), and GND (Ground).

• Buffer Management: Includes 512-byte bi-directional data buffers for optimized throughput during high-speed transfers.

• Flow Control: Supports software XON/XOFF flow control and hardware flow control signals.

• Logic Levels: The TXD and RXD lines operate at the voltage level selected, ensuring compatibility with 3.3V microcontrollers.

• Power Management: Highly efficient CMOS process draws minimal current from the USB bus during operation.

• Drivers Availability: Compatible with Prolific's official driver suite for Windows XP, 7, 8, and 10.

• PCB Construction: Industrial-grade FR-4 PCB with high-quality solder joints and precise component placement.

• Connector Durability: Standard USB Type-A male connector designed for repeated insertion cycles.

• Compact Footprint: Miniature design is barely larger than a standard USB drive, making it extremely portable.

• Versatile Use: Ideal for unbricking routers, programming Pro Mini boards, and interfacing with GPS or GSM modules.