{"product_id":"ch341t-usb-to-i2c-iic-uart-ttl-serial-module-3v3-5v","title":"CH341T USB to I2C UART TTL Serial Module 3.3V 5V","description":"\u003ch2\u003eCH341T 2-in-1 USB to I2C \/ UART TTL Serial Port Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCH341T USB Serial Module\u003c\/strong\u003e is a compact, versatile 2-in-1 interface board that converts USB to I2C\/IIC and UART TTL signals simultaneously. Supporting both \u003cstrong\u003e3.3V and 5V logic levels\u003c\/strong\u003e, it's an essential tool for embedded developers, electronics enthusiasts, and makers who need reliable communication between a PC and microcontrollers, sensors, or single-chip systems.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-protocol support:\u003c\/strong\u003e USB to I2C\/IIC and USB to UART TTL in a single compact module\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual voltage compatibility:\u003c\/strong\u003e Operates at 3.3V and 5V logic levels — works with a wide range of microcontrollers and peripherals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCH341T chipset:\u003c\/strong\u003e Industry-proven USB bridge chip for stable, high-performance serial communication\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSMD components:\u003c\/strong\u003e Surface-mount design for a clean, professional build\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact form factor:\u003c\/strong\u003e Measures just 18.2 × 34.9 mm and weighs 8.72 g — fits easily into any project enclosure\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug-and-play USB connectivity:\u003c\/strong\u003e Simple USB interface, no external power supply required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable in multiple quantities:\u003c\/strong\u003e Choose from 1 pc, 5 pcs, or 10 pcs to suit your project needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipset:\u003c\/strong\u003e CH341T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e USB to I2C\/IIC + UART TTL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLogic Voltage:\u003c\/strong\u003e 3.3V \/ 5V selectable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 18.2 × 34.9 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 8.72 g\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComponents:\u003c\/strong\u003e SMD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity Options:\u003c\/strong\u003e 1 pc, 5 pcs, 10 pcs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eThis module is ideal for:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino, Raspberry Pi, and ESP32\/ESP8266 developers\u003c\/li\u003e\n  \u003cli\u003eFirmware engineers needing fast USB-to-serial bridging\u003c\/li\u003e\n  \u003cli\u003eElectronics students and hobbyists exploring I2C and UART communication\u003c\/li\u003e\n  \u003cli\u003eAnyone who needs a reliable single-chip serial downloader\/programmer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ccb-flat-round-spacer-beads-diy-jewelry-making\"\u003e4\/6mm CCB Flat Round Spacer Beads – DIY Jewelry Making\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/round-aluminum-wire-diy-jewelry-making-1mm-3mm\"\u003eRound Aluminum Wire 1mm–3mm | DIY Jewelry Making Wire\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does the CH341T USB to I2C UART TTL module do?\u003c\/h4\u003e\n\u003cp\u003eA: The CH341T module acts as a USB bridge that converts USB signals from your computer into I2C\/IIC and UART TTL serial protocols. This allows your PC to communicate directly with microcontrollers, sensors, EEPROM chips, and other embedded devices that use I2C or UART serial interfaces — making it a must-have tool for embedded development and firmware programming.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this module compatible with both 3.3V and 5V devices?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The CH341T module supports both 3.3V and 5V logic levels, making it compatible with a wide range of microcontrollers and peripherals including Arduino (5V), Raspberry Pi (3.3V), ESP8266, ESP32, STM32, and many more. Simply select the appropriate voltage for your target device.\u003c\/p\u003e\n\u003ch4\u003eQ: Do I need special drivers to use this USB serial module?\u003c\/h4\u003e\n\u003cp\u003eA: The CH341T chip is widely supported and drivers are freely available for Windows, macOS, and Linux. In many cases, modern operating systems will recognize the device automatically. For guaranteed compatibility, downloading the latest CH341 driver from your OS's driver repository or the chipset manufacturer's site is recommended.\u003c\/p\u003e\n\u003ch4\u003eQ: What quantity options are available for this module?\u003c\/h4\u003e\n\u003cp\u003eA: This listing offers three quantity options to suit different needs: 1 pc for individual projects, 5 pcs for small-batch development, or 10 pcs for team use or prototyping at scale. Each unit includes SMD components and is ready to use.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the CH341T USB to I2C UART TTL module do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The CH341T module acts as a USB bridge that converts USB signals from your computer into I2C\/IIC and UART TTL serial protocols. 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