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PL2303 USB To UART (TTL) Communication Module Type C Connector
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A USB-to-UART (TTL) communication module based on the PL2303GS chip. Connect it to your PC via USB and communicate with microcontrollers, single-board comput...
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A USB-to-UART (TTL) communication module based on the PL2303GS chip. Connect it to your PC via USB and communicate with microcontrollers, single-board computers, and other TTL-level serial devices. Three LED indicators (TXD, RXD, PWR) provide visual feedback during operation.
The module supports flexible VCCIO configuration via an onboard jumper: output 5 V, 3.3 V, or leave open to accept power from the target board (1.8–5 V).
Key Features
- PL2303GS Chip – Latest version for reliable USB-to-UART conversion
- TTL Level Output – Compatible with 1.8 V, 2.5 V, 3.3 V, and 5 V logic
- Selectable VCCIO – 5 V, 3.3 V, or external power via jumper
- 3 LED Indicators – TXD, RXD, and PWR status
- Windows Compatible – Supports Windows XP / 7 / 8 / 10 / 11
Wiring (Example: Type A with MCU)
- VCCIO → 3.3 V or 5 V (set via onboard jumper)
- GND → GND
- TXD → MCU RX
- RXD → MCU TX
Warning: This module is compatible with TTL level only. Do NOT connect directly to RS-232 circuits — doing so may damage the module.
Package Contents
- 1× PL2303 USB UART Board
- 1× 4-Pin Custom Connector Jumper Wire
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- RS-232
- An older serial communication standard that uses higher signal voltages than modern microcontroller logic pins. If you are connecting this breakout to a microcontroller, you may need an RS-232 interface or level converter rather than wiring it directly.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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