USB to TTL CH340G Converter Module – STC Download Board

The USB to TTL CH340G Converter Module (STC Download Board) is a reliable and essential tool for serial communication and microcontroller programming. Based on the widely used CH340G USB-to-Serial chip, this module allows seamless data transfer between your computer and TTL-level devices.

It is commonly used for programming Arduino boards, ESP8266, ESP32, STC microcontrollers, and other embedded systems. The module converts USB signals into TTL serial signals, making it perfect for debugging, firmware uploading, and communication tasks.

With support for multiple voltage levels (3.3V / 5V), it ensures compatibility with a wide range of devices. The compact design and easy plug-and-play functionality make it suitable for both beginners and professionals.

Whether you’re working on IoT projects, embedded development, or serial debugging, this CH340G module is a must-have tool for any electronics enthusiast in Bangladesh.

Key Features

• CH340G USB to TTL converter chip
•  Supports 3.3V and 5V output
• Stable and reliable serial communication
• Ideal for Arduino, ESP8266, ESP32, STC
• Plug & play with USB interface
• Compact and lightweight design
• Supports firmware uploading & debugging

Key Specifications

• Chipset: CH340G
• Interface: USB to TTL Serial
• Output Voltage: 3.3V / 5V selectable
• Communication: UART (TX, RX)
• Connector: USB Type-A / Mini USB (varies by model)
• Compatibility: Windows, Linux, macOS

Technical Details

• Function: USB to Serial (TTL level) conversion
• Communication Protocol: UART
• Baud Rate Support: Standard serial baud rates
• Driver Support: CH340 driver required
• Pins: TXD, RXD, VCC, GND, DTR (varies by module)
• Applications: Firmware flashing, debugging, serial communication
• Compatibility: Arduino, ESP8266, ESP32, STM32, STC microcontrollers

📦 Package Includes

• 1 × USB to TTL CH340G Converter Module

🎯 Why Choose This Module?

✔ Easy programming for microcontrollers
✔ Reliable CH340G chipset
✔ Supports both 3.3V and 5V devices
✔ Essential tool for IoT and embedded development
✔ Perfect for students and developers in Bangladesh

⚙️ Usage / Applications

• Arduino programming
• ESP8266 / ESP32 flashing
• STC microcontroller download board
• Serial debugging
• Embedded system development
• IoT prototyping

📘 What is USB to TTL Converter?

It is a module that converts USB signals from a computer into TTL-level serial signals, allowing communication with microcontrollers.

⚡ How It Works

The CH340G chip converts USB data into serial UART signals (TX/RX), enabling communication between your PC and microcontroller for programming or data exchange.

📞 Need Assistance?

📱 Mobile: +8801316113774
📧 Email: roboshopbd123@gmail.com

❓ FAQs

Q: Is driver installation required?
A: Yes, CH340 driver may be required for first-time use.

Q: Does it support ESP8266/ESP32?
A: Yes, it works perfectly for ESP programming.

Q: Can it be used with Arduino?
A: Yes, it is widely used for Arduino boards without USB interface.

Q: Does it support both 3.3V and 5V?
A: Yes, most modules support both voltage levels.

Q: Is it suitable for beginners?
A: Yes, it is easy to use and widely supported.