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2pcs CH341T USB to I2C and UART Serial Converter Module, USBTTL 3.3 V 5 V, Up to 2 Mbps
- Product Overview CH341T 2in1 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 USBtoI2C and USBtoTTL 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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2In1 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 FullSpeed Communication Built on the CH341T USB interface controller; supports USB 2.0 fullspeed 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
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- Return for refund within: 30 days
- Return for replacement within: 30 days
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