CH341T USB to TTL UART & I2C Converter Module 3.3V/5V for STC/STM MCU Programming

The amiciTech CH341T 2-in-1 USB Converter Module is a versatile and compact development tool designed for engineers, students, hobbyists, and embedded developers working with serial communication and I2C devices.
This multifunctional module combines:
USB to TTL UART Serial Converter
USB to I2C/IIC Communication Interface
into a single convenient board, helping simplify development and reduce hardware clutter.
The module supports both 3.3V and 5V selectable output levels, making it compatible with a broad range of microcontrollers, EEPROM chips, Flash memory devices, sensors, and development boards.
With support for UART communication speeds from 50bps up to 2Mbps, including non-standard baud rates, it is ideal for:
MCU programming
ISP downloading
Serial debugging
Embedded system communication
Firmware flashing
The integrated I2C master mode supports communication speeds up to 750KHz, allowing reliable interfacing with EEPROMs, memory chips, and other I2C peripherals.
Its built-in LED indicators help users quickly monitor power and communication status during development and troubleshooting.
Whether you're programming STC/STM microcontrollers, debugging serial devices, or building embedded automation projects, the CH341T module provides a reliable and efficient USB communication solution.
Technical Specifications:
Model: CH341T USB Converter Module
Functions: USB to UART / USB to I2C (IIC)
Output Voltage: 3.3V / 5V Selectable
UART Baud Rate: 50bps – 2Mbps
I2C Communication Speed: 20KHz / 100KHz / 400KHz / 750KHz
I2C Mode: Master Mode Only
Supported MCU: STC / STM Series
Supported Devices: EEPROM, Flash Memory, I2C Devices
Programming Method: ISP Download
Interface: USB to TTL Serial
Status Indicator: LED Indicators
Features: Voltage & Function Switching
Package Contents
1 × CH341T 2-in-1 USB Converter Module
1 × Double Female Dupont Cable