USB to TTL Converter Adapter Module PL2303

Features

• High-Speed Flash Programming: Rapidly program flash memory through RS232 TTL interface.
• Fuse Protection: Built-in 500mA self-recovery fuse safeguards both module and connected devices.
• Real-Time Monitoring: Dual transmission indicators provide instant feedback during read/write operations.
• Voltage Compatibility: Reserved 3.3V and 5V pins for broad system compatibility, including DDWRT and embedded boards.
• Quality Insulation: Transparent heat-shrink sleeve protects the PCB from shorts and external damage.
• Electrostatic Protection: Anti-static packaging prevents damage during handling and transport.
• System Compatibility: Works with Windows 7 and newer OS for easy software interfacing.

Specifications

• Dimensions: 50 × 15 × 7 mm
• Net Weight: 5 g
• Package Weight: 15 g
• Interface: RS232 TTL
• Operating Voltage: 3.3V / 5V selectable
• Protection: 500mA self-recovery fuse
• Indicators: Dual data transmission LEDs

Pinout

Library / Software

For Driver Download from: Here

No special library is required. This module can communicate with any serial terminal software such as:

• Arduino Serial Monitor
• Tera Term
• PuTTY
• Other RS232 serial programming software

Simply set the baud rate and connect TX/RX correctly for programming or data transfer.

Arduino Example Code

RS232 TTL Flash Module Test with Arduino 

Connect TX/RX pins of the module to the Arduino RX/TX, respectively

void setup() {
  Serial.begin(9600);  // Initialize serial communication
  Serial.println("RS232 TTL Flash Module Ready");
}

void loop() {
  if (Serial.available()) {
    char data = Serial.read();   // Read incoming data
    Serial.print("Received: ");  
    Serial.println(data);        // Echo back data
  }
}

Applications

• Programming microcontrollers and flash memory chips
• EEPROM and firmware updates
• Data logging and monitoring
• Embedded system development and testing
• DIY electronics and hobbyist projects