PL2303 USB TTL Converter Module

The PL2303 USB TTL Converter Module is a compact USB-to-Serial communication module based on the Prolific PL2303 chipset. It converts USB signals from a computer into TTL-level UART serial signals, allowing easy communication between a PC and microcontrollers, development boards, GPS modules, GSM modules, routers, and other embedded devices.

This module is widely used for programming, debugging, firmware uploading, serial monitoring, and data communication with Arduino, ESP8266, ESP32, STM32, AVR, PIC, and other microcontroller platforms.

Specifications

• Chipset: Prolific PL2303 USB-to-UART Controller
• USB Interface: USB 2.0 Type-A
• Communication Protocol: UART (TTL Serial)
• Operating Voltage: 5V DC (from USB)
• Logic Level: 5V TTL
• Maximum Baud Rate: Up to 1 Mbps
• Supported Operating Systems: Windows, Linux, macOS
• Serial Pins: VCC, GND, TXD, RXD
• USB Standard: USB 2.0 Full-Speed Compatible
• Data Transfer: Full-Duplex Serial Communication
• Driver Support: PL2303 Drivers Available
• Status Indicators: TX and RX Communication LEDs
• Module Dimensions: Approximately 43 mm × 15 mm
• Weight: Approximately 5 grams
• Operating Temperature: -20°C to +70°C
• Power Source: USB Powered
• Programming Support: Arduino, ESP8266, ESP32, STM32, AVR, PIC and other UART-based devices
• Applications: Serial debugging, firmware uploading, device configuration, embedded system development, GSM/GPS communication, router recovery, and UART testing.