PL2303HX USB to TTL RS232 UART Converter for Arduino

Description

PL2303HX USB to TTL RS232 UART Arduino Converter Cable

configuration:

Red +5 V
GND black
RXD white
TXD green

 

Connection mode:

RX to TX;

TX to RX;

Surface-to-surface (from GND to GND)

USB to serial board function:

1 simple serial communication.

2 or router ADSL firmware update.

3 Serial GPS communication.

4 Disk firmware update.

5 Convenient use, RX receives MCU TX; TX MCU RX received at Shangdi. No MAX232 conversion used.

6 super-terminal to use; common serial debug tools.

7 satellite machine update types.

 

 

We have datasheets available for all components. If it’s not present in the product download sheet, send us a message through the contact form and we will publish it as soon as possible on our website.

 

Tutorial: How to Use the USB to TTL RS232 UART Converter

The PL2303HX converts USB signals to TTL RS232 for Arduino. Ideal for beginners.

What you need

• Arduino
• Computer with USB port
• Serial communication software

Steps

1. Connect the converter between the Arduino and the computer’s USB port
2. Install the PL2303HX drivers from the official website
3. Open the serial communication software (e.g., Arduino Serial Monitor)
4. Set the correct transmission speed in the software
5. Send data from Arduino to the computer and vice versa

Mini project

Create an LCD display that shows messages sent from the computer

Common mistakes

• Physical connection error between Arduino and converter
• Drivers not installed correctly
• Incorrect serial settings in software

Recommended accessories

• TTL RS232 interface LCD display
• Variable sensors for data monitoring
• USB Type A to micro B cable
• Jumpers and test connectors

Frequently asked questions

Where can I find PL2303HX drivers?
On the Prolific Technology website.

Is the converter compatible with Raspberry Pi?
Check the datasheet for specific compatibility.