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2pcs CH341T USB to I2C and UART Serial Converter Module, USB‑TTL 3.3 V 5 V, Up to 2 Mbps in Saudi Arabia 2pcs CH341T USB to I2C and UART Serial Converter Module, USB‑TTL 3.3 V 5 V, Up to 2 Mbps in Saudi Arabia 2pcs CH341T USB to I2C and UART Serial Converter Module, USB‑TTL 3.3 V 5 V, Up to 2 Mbps in Saudi Arabia 2pcs CH341T USB to I2C and UART Serial Converter Module, USB‑TTL 3.3 V 5 V, Up to 2 Mbps in Saudi Arabia 2pcs CH341T USB to I2C and UART Serial Converter Module, USB‑TTL 3.3 V 5 V, Up to 2 Mbps in Saudi Arabia 2pcs CH341T USB to I2C and UART Serial Converter Module, USB‑TTL 3.3 V 5 V, Up to 2 Mbps in Saudi Arabia

2pcs CH341T USB to I2C and UART Serial Converter Module, USB‑TTL 3.3 V 5 V, Up to 2 Mbps

SAR 52
Brand
JESSINIE
Weight
50 g
– 1 +

Special Features

  • 【2‑In‑1 USB To I2C And UART Interface】 CH341T integrates USB to I2C and USB to TTL UART functions on one module; supports flexible protocol selection; reduces the need for multiple adapters; simplifies MCU communication, configuration, and serial programming tasks during development
  • 【Stable USB 2.0 Full‑Speed Communication】 Built on the CH341T USB interface controller; supports USB 2.0 full‑speed operation; ensures reliable data transfer between PC and target device; maintains consistent communication for firmware download and parameter adjustment workflows
  • 【3.3 V And 5.0 V TTL Logic Compatibility】 Supports standard 3.3 V and 5.0 V TTL logic levels; adapts to different MCU voltage requirements; reduces level mismatch risk; enables direct connection to common controller UART and I2C pins without extra converters
  • 【Up To 2 Mbps UART Data Rate Support】 UART interface supports baud rates up to 2 Mbps; enables fast serial communication; improves efficiency for code flashing and data logging; suitable for projects requiring responsive USB to serial data exchange
  • 【USB Powered With Clear Pin Layout】 Powered directly from the USB port; no external supply needed for basic operation; exposes TXD, RXD, SCL, SDA, VCC, and GND pins; simplifies wiring; compatible with for Arduino and similar MCU development platforms

Description

Product Overview
CH341T 2‑in‑1 USB Interface Module providing USB to I2C (IIC) and USB to UART/TTL conversion. Designed for MCU programming, communication, and debugging. Integrates original CH341T chip for stable USB interface and wide compatibility.

1. Product Parameters
Main IC: CH341T
Function: USB to I2C and USB to UART converter
USB Standard: USB 2.0 Full Speed
Interfaces Supported: I2C (IIC), TTL UART
Logic Level: 3.3 V / 5.0 V TTL
Baud Rate: Up to 2 Mbps
Power Supply: USB powered
Driver Support: CH341 drivers
Operating Temperature: −40 °C to +85 °C
2. Pin Function Description
VCC (IN+): DC power output / logic supply
GND: Power ground
TXD: UART transmit output
RXD: UART receive input
SCL: I2C clock output
SDA: I2C data input/output
3. Common Questions & Answers (FAQ)
Q1: What interfaces does this module support?
A1: It supports USB‑to‑I2C and USB‑to‑TTL UART.

Q2: Can it be used to program microcontrollers?
A2: Yes, it works as a serial downloader for many MCUs.

Q3: What voltage levels are supported?
A3: It supports standard 3.3V and 5V TTL logic levels.

Q4: Does it require drivers on a PC?
A4: Yes, CH341 drivers are required for operation.

Q5: Is it suitable for development and debugging?
A5: Yes, it is widely used for MCU communication tasks.

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