The PL2303 module is a cost-effective USB-to-UART bridge. It allows your PC to communicate with any serial device by creating a Virtual COM Port. Whether you are flashing firmware to an ESP32, debugging a Raspberry Pi, or reading data from an industrial sensor, this module provides a stable, low-latency connection.
Dual Voltage Logic: Built-in jumper allows you to switch between 3.3V and 5V output, ensuring compatibility with different microcontroller logic levels.
Plug-and-Play (Driver Dependent): Installs as a standard COM port on Windows, Linux, and macOS.
Diagnostic LEDs: Onboard TX and RX LEDs provide visual confirmation of data flowing in both directions.
Self-Recovery Fuse: Includes a 500mA resettable fuse to protect your computers USB port from accidental shorts.
| Feature | Specification |
| Interface | USB 2.0 to UART (TTL) |
| Logic Levels | 3.3V / 5V (Selectable via Jumper) |
| Baud Rate | 300 bps to 1 Mbps |
| Data Pins | VCC, GND, TXD, RXD |
| Protection | 500mA Self-Recovery Fuse |
| Dimensions | 52mm x 15mm |
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