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PL2303HX USB To TTL Converter Cable

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Component Name

PL2303HX USB To TTL Converter Cable

Overview

The PL2303HX USB To TTL Converter Cable is a widely used and versatile component that enables communication between a computer's USB port and a serial device's TTL (Transistor-Transistor Logic) interface. This converter cable is designed to provide a reliable and convenient solution for connecting devices with TTL serial interfaces to a computer, facilitating data transfer, debugging, and programming.

Functionality

  • USB to TTL Conversion: The cable converts the USB signal from a computer to a TTL signal, allowing devices with TTL serial interfaces to communicate with the computer.
  • Serial Data Transfer: The converter enables bidirectional data transfer between the computer and the serial device, supporting data rates up to 921,600 bps.
  • Device Programming: The PL2303HX cable can be used to program microcontrollers, debug firmware, and perform other development tasks that require serial communication.
The PL2303HX converter cable performs the following functions

Key Features

  • Compact Design: The converter cable features a compact design, making it easy to integrate into a variety of applications.
  • USB 2.0 Compatibility: The cable supports USB 2.0 protocol, ensuring high-speed data transfer and compatibility with a wide range of devices.
  • TTL Level Shifting: The PL2303HX chip on the cable performs level shifting, converting the 5V TTL signal to a 3.3V or 5V signal, depending on the target device's voltage requirements.
  • Baud Rate Support: The converter cable supports a wide range of baud rates, from 75 bps to 921,600 bps, making it suitable for various serial communication applications.
  • Hot Swappable: The cable is hot swappable, allowing users to connect and disconnect devices without shutting down the system.
  • Driver Support: The PL2303HX chip is supported by a wide range of operating systems, including Windows, macOS, and Linux.
  • Power Management: The converter cable draws power from the USB bus, eliminating the need for an external power source.

Operating Temperature

0C to 60C (32F to 140F)

Storage Temperature

-20C to 85C (-4F to 185F)

Input Voltage

5V (USB bus powered)

Output Voltage

3.3V or 5V (TTL level shifted)

Data Transfer Rate

Up to 921,600 bps

Cable Length

1.5 meters (4.9 feet)

Connectors

USB Type-A (male) and 6-pin TTL serial connector (female)

Applications

The PL2303HX USB To TTL Converter Cable is suitable for a wide range of applications, including

Microcontroller development and programming

Serial communication with devices such as GPS modules, LCD displays, and sensors

Debugging and testing of embedded systems

Industrial automation and control systems

Robotics and automation projects

Overall, the PL2303HX USB To TTL Converter Cable is a versatile and reliable component that simplifies serial communication between computers and devices with TTL interfaces.

Pin Configuration

  • PL2303HX USB To TTL Converter Cable Documentation
  • Pin Description:
  • The PL2303HX USB To TTL Converter Cable has a 6-pin connector that provides a straightforward interface for connecting TTL serial devices to a USB port. The pinout is as follows:
  • Pin 1:
  • RXD (Receive): This pin is used to receive data from the USB side and transmit it to the TTL device. It's the input pin for the TTL device.
  • Pin 2:
  • TXD (Transmit): This pin is used to transmit data from the TTL device to the USB side. It's the output pin from the TTL device.
  • Pin 3:
  • VCC: This pin provides the power supply voltage (typically 3.3V or 5V) to the TTL device. It's connected to the power pin of the TTL device.
  • Pin 4:
  • GND (Ground): This pin provides the ground connection for the TTL device. It's connected to the ground pin of the TTL device.
  • Pin 5:
  • DTR (Data Terminal Ready): This pin is used to control the flow of data transmission. It's typically connected to the RTS (Request to Send) pin of the TTL device.
  • Pin 6:
  • RI (Ring Indicator): This pin is not used in most TTL devices and can be left unconnected.
  • Pin Connection Structure:
  • To connect the PL2303HX USB To TTL Converter Cable to a TTL device, follow this structure:
  • Connect Pin 1 (RXD) to the RX (Receive) pin of the TTL device.
  • Connect Pin 2 (TXD) to the TX (Transmit) pin of the TTL device.
  • Connect Pin 3 (VCC) to the VCC (Power) pin of the TTL device.
  • Connect Pin 4 (GND) to the GND (Ground) pin of the TTL device.
  • Connect Pin 5 (DTR) to the RTS (Request to Send) pin of the TTL device (if available).
  • Leave Pin 6 (RI) unconnected.
  • Important Notes:
  • Make sure to check the TTL device's datasheet for the correct pinout and voltage requirements.
  • The PL2303HX USB To TTL Converter Cable can operate at 3.3V or 5V, but ensure that the voltage matches the TTL device's requirements.
  • Use proper cable management and insulation to prevent signal noise and damage to the devices.
  • By following this pinout and connection structure, you can successfully connect your TTL device to a USB port using the PL2303HX USB To TTL Converter Cable.

Code Examples

PL2303HX USB To TTL Converter Cable Documentation
Overview
The PL2303HX USB To TTL Converter Cable is a widely used component that enables communication between a computer's USB port and serial devices, such as microcontrollers, robots, and other IoT devices, using a TTL (Transistor-Transistor Logic) serial interface. This cable provides a convenient and reliable way to connect and program devices, debug systems, and transfer data between devices.
Key Features
USB 2.0 full-speed compliant
 Baud rate up to 921.6 Kbps
 Supports Windows, macOS, and Linux operating systems
 TTL signal level: 3.3V or 5V
 Cable length: approximately 1.8 meters (6 feet)
Code Examples
### Example 1: Python and PySerial Library (Windows, macOS, and Linux)
This example demonstrates how to use the PL2303HX cable with Python and the PySerial library to send and receive data from a serial device.
Hardware Requirements
PL2303HX USB To TTL Converter Cable
 Serial device (e.g., Arduino, Raspberry Pi, or other microcontrollers)
 Computer with Python and PySerial library installed
Code
```python
import serial
# Open the serial port (e.g., COM3 on Windows or /dev/ttyUSB0 on Linux/macOS)
ser = serial.Serial('COM3', 9600, timeout=1)
# Send a string to the serial device
ser.write(b'Hello, world!')
# Read data from the serial device
response = ser.readline()
print(response.decode())
# Close the serial port
ser.close()
```
### Example 2: Arduino and Serial Communication (Windows, macOS, and Linux)
This example demonstrates how to use the PL2303HX cable with an Arduino board to send and receive data from a computer using the Arduino Serial library.
Hardware Requirements
PL2303HX USB To TTL Converter Cable
 Arduino board (e.g., Arduino Uno or Arduino Nano)
 Computer with Arduino IDE installed
Code (Arduino Side)
```c
void setup() {
  Serial.begin(9600); // Initialize serial communication at 9600 bps
}
void loop() {
  if (Serial.available() > 0) {
    String incomingData = Serial.readStringUntil('
');
    Serial.print("Received: ");
    Serial.println(incomingData);
  }
}
```
Code (Computer Side)
```python
import serial
# Open the serial port (e.g., COM3 on Windows or /dev/ttyUSB0 on Linux/macOS)
ser = serial.Serial('COM3', 9600, timeout=1)
# Send a string to the Arduino board
ser.write(b'Hello, Arduino!')
# Read data from the Arduino board
response = ser.readline()
print(response.decode())
# Close the serial port
ser.close()
```
These examples demonstrate the basic usage of the PL2303HX USB To TTL Converter Cable in various contexts. The cable can be used in a wide range of applications, including robotics, automation, and IoT projects, where serial communication is required.