Loading...

CH341T USB to UART & I2C Serial 2-in-1 Converter Module - Dual Mode

Rating:
89%
USB Converters
₹399.00 ₹ 338.14 + 60.87 GST
In stock
SKU
PRO4076

1-3 Days Express Shipping in India Available

Bulk Pricing
QTYUnit Price(Inlc. GST)
25+ ₹391.02 ₹ 331.37 + 59.65 GST
50+ ₹383.04 ₹ 324.61 + 58.43 GST
75+ ₹375.06 ₹ 317.85 + 57.21 GST
100+ ₹367.08 ₹ 311.08 + 55.99 GST

Contact us for Higher Quantities.

Contact us for Higher Quantities

Professional-grade CH341T bridge module. Seamlessly switch between USB-to-UART and USB-to-I2C modes with on-board jumpers. Ideal for EEPROM programming and sensor debugging.

Why settle for a single-protocol adapter when you can have a dual-mode powerhouse?

Most USB-to-Serial converters do one thing and one thing only. But for the serious embedded engineer, toggling between debugging a UART console and scanning an I2C bus is a daily requirement. The CH341T 2-in-1 USB Converter eliminates the need for multiple dongles, providing a dedicated hardware bridge for both protocols in a single, compact footprint.

The Probots Quality Advantage

Unlike generic CH341A "Black Edition" programmers that often suffer from timing jitter and poor I2C clock stretching support, our module utilises the Probots ProSpec Grade CH341T variant. This specific silicon is optimised for 2-wire synchronous communication, ensuring your I2C sensor data remains uncorrupted even at 400kHz. Every unit is Probots Lab Verified in our facility to ensure the voltage selection jumpers provide clean, regulated power, making it Probots Logic-Safe for sensitive 3.3V microcontrollers, such as the ESP32 and STM32.

Specifications

  • Chipset: CH341T.

  • USB Interface: USB 2.0 Full Speed (Standard Type-A).

  • UART Mode: Supports baud rates from 50bps to 2Mbps with a full-duplex hardware buffer.

  • I2C Mode: Master mode support with 4 selectable speeds (20K, 100K, 400K, 750K).

  • Operating Voltage: Dual 3.3V and 5V support (Jumper Selectable).

  • Indicators: Dedicated on-board LEDs for Power, UART activity, and I2C/SPI status.

  • Protection: Integrated 500mA self-recovery fuse to protect your PC's USB port.

  • Compatibility: Windows (7/8/10/11), Linux, and macOS.

Key Applications & Projects

  • EEPROM/Flash Programming: Read and write to 24-series I2C EEPROMs directly from your PC.

  • Sensor Debugging: Test I2C sensors (MPU6050, BME280, OLEDs) without writing a single line of MCU code.

  • Industrial Protocol Bridging: Convert legacy serial equipment to modern USB interfaces.

  • Automated Testing: Use Python or LabVIEW to control I2C peripherals during hardware-in-the-loop (HIL) testing.

Project Evolution

  • Past Projects (Prerequisites): If you’ve used basic CP2102 or CH340 modules for simple serial logging, you’re ready for the next step.

  • Feature Upgrade: This module unlocks the ability to act as an I2C Master. This means you can "talk" to sensors directly from your computer terminal—a massive time-saver compared to uploading code to an Arduino every time you want to change a register.

  • Effort/Requirements: Intermediate. Requires basic knowledge of I2C addressing and driver installation.

Virtual Technician & Wiring

⚠️ Safety Warning: Always set the voltage jumper (3.3V or 5V) before connecting your target device to prevent overvoltage damage.

Pin Label UART Mode Connection I2C Mode Connection
VCC 3.3V or 5V Power Out 3.3V or 5V Power Out
GND Ground Ground
TXD / SDA Connect to Target RX Connect to Target SDA
RXD / SCL Connect to Target TX Connect to Target SCL

Helpful Tutorials & Resources

Package Includes: 1 x  CH341T USB to UART & I2C Serial 2-in-1 Converter Module

Frequently Asked Questions (FAQ)

  • What is the difference between CH341T and CH341A? The 'T' version is more compact and optimized for UART/I2C, whereas the 'A' version often includes parallel port features not needed for serial debugging.
  • Does this work with Windows 11? Yes, it uses the standard WCH serial/parallel driver suite.
  • Can I use this as an SPI programmer? While the CH341 chip supports SPI, this specific breakout is optimized for UART and I2C.
  • How do I switch between UART and I2C? Move the on-board jumper to the labeled mode pins before plugging in the USB.
  • Does it support 1.8V logic? No, it supports 3.3V and 5V levels.
  • Can it program an Arduino? Yes, it can be used as a standard USB-to-Serial uploader for Arduino Pro Mini or custom boards.
  • Is there a Linux driver? Yes, it is supported by the ch341 kernel driver.
  • What is the maximum I2C speed? It supports up to 750kHz, though 400kHz is the standard stable limit.
  • Can I read BIOS chips with this? Yes, for 24-series EEPROMs. For 25-series SPI Flash, an SPI-specific variant is recommended.
  • Does it include pull-up resistors for I2C? Yes, the board includes integrated pull-ups for stable I2C communication.
  • Can it power my external sensor? Yes, but limit current draw to under 200mA.
  • Is it compatible with macOS? Yes, drivers are available from the manufacturer (WCH).
  • Why are there two LEDs? One indicates power, while the other shows data transmission activity.
  • Can I use this with Python? Yes, libraries like pySerial (UART) and smbus (I2C) are compatible.
  • What is the default I2C address of the module? As a Master, it does not have an address; it initiates communication with Slaves.
  • Is it breadboard friendly? Yes, the standard 2.54mm pitch pins fit perfectly.
  • Does it support hardware flow control? This specific module breaks out the primary UART pins; full hardware handshaking is not supported on this compact header.
  • Can I use this for 2-wire serial (TTL)? Yes, that is the primary UART function.
  • What happens if I set the jumper to 5V for a 3.3V sensor? You will likely damage the sensor's I/O pins. Always double-check!
  • Is this genuine WCH silicon? Yes, we source only original-grade chips for consistent timing and driver stability.
Write Your Own Review
Only registered users can write reviews. Please Sign in or create an account

How to Order?

Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in

  • Place an order online our website probots.co.in for quick and fast delivery
  • You can contact us by phone, Whatsapp or Mail for bulk enquiries, technical queries or order related enquiries before placing the order.
  • If you require a Quotation or PI for your company, send us a request mail and we will help you with it.

Delivery Time?

We delivery electronics components and parts throughout India using standard couriers like Bluedart, Delhivery & India Post.

  • Dispatch Time: 1 Working Day for most orders
  • Guranteed Delivery Time: 1-3 days within India under Express Shipping

How to buy Electronics Components in Bangalore?

  • We offer store pickups for walkin customers in Bangalore. This is the fastest way to get electronic components in Bangalore.
  • Customers can visit our store to buy parts directly
  • Alternatively, you can place orders online and select Select Pickup as the delivery option and have your order picked up by Dunzo, Porter, etc. Please contact us for confirmation before arranging a pickup.

Need Help?

For order related queries contact -

Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in

We offer specialized services for Bulk, Wholesale & B2B Customers like discounted prices, additional shipping options, customised products, etc . Customer with large quantity & regular orders qualify for the specialised discounted rates.

We also offer dedicated sales team to assist you with the order process by providing sales quotations, PI, technical support for choosing products, etc.

Note: Business Orders are processed manually and usually take 1-3 days  to process compared to placing the order directly on our website. Please plan your purchases accordingly.

Need Help?
For bulk enquiries contact us by  -

Customer also viewed

LockIT LMS020-01 Magnetic Sensor for Door NO
LockIT LMS020-01 Magnetic Sensor for Door NO
Rating:
90%
USB Converters
₹199.00 ₹ 168.64 + 30.36 GST
MPU6050 6DOF IMU Sensor Module Gyroscope & Accelerometer GY521
MPU6050 6DOF IMU Sensor Module Gyroscope & Accelerometer GY521
Rating:
92%
USB Converters
₹199.00 ₹ 168.64 + 30.36 GST
ESP8266 Serial WiFi Module ESP-01 for Arduino Raspberry Pi IoT
ESP8266 Serial WiFi Module ESP-01 for Arduino Raspberry Pi IoT
Rating:
89%
USB Converters
₹149.00 ₹ 126.27 + 22.73 GST
Digital Potentiometer Module X9C103S 10K for Arduino Raspberry
Digital Potentiometer Module X9C103S 10K for Arduino Raspberry
Rating:
91%
USB Converters
₹249.00 ₹ 211.02 + 37.98 GST
4-20mA to 5V Converter for Arduino Industrial Sensor Interface Board
4-20mA to 5V Converter for Arduino Industrial Sensor Interface Board
Rating:
91%
USB Converters
₹199.00 ₹ 168.64 + 30.36 GST
USB Mini Cable 1.5m
USB Mini Cable 1.5m
Rating:
91%
USB Converters
₹117.00 ₹ 99.15 + 17.85 GST
7 Inch Capacitive Touch Screen HDMI LCD TFT Display For Raspberry Pi 4 1024 x 600
7 Inch Capacitive Touch Screen HDMI LCD TFT Display For Raspberry Pi 4 1024 x 600
Rating:
91%
USB Converters
₹5,999.00 ₹ 5083.9 + 915.1 GST
18650 Li Ion 2500 mAh Lithium Battery Cell Rechargable
18650 Li Ion 2500 mAh Lithium Battery Cell Rechargable
Rating:
88%
USB Converters
₹149.00 ₹ 126.27 + 22.73 GST
E18-D80NK Proximity Infrared Obstacle Avoidance IR Sensor
E18-D80NK Proximity Infrared Obstacle Avoidance IR Sensor
Rating:
89%
USB Converters
₹149.00 ₹ 126.27 + 22.73 GST
12mm ProMax PPS12005BRL Metal Push Button Switch Waterproof Latching Blue
12mm ProMax PPS12005BRL Metal Push Button Switch Waterproof Latching Blue
Rating:
88%
USB Converters
₹159.00 ₹ 134.75 + 24.26 GST

Related Products

Similar Products in this Category

Toggle Switch Safety Cap - Transparent Yellow
Toggle Switch Safety Cap - Transparent Yellow
Rating:
92%
USB Converters
₹139.00 ₹ 117.8 + 21.2 GST
Rotary Adjustable Roller Micro Limit Switch ME-8166
Rotary Adjustable Roller Micro Limit Switch ME-8166
Rating:
88%
USB Converters
₹399.00 ₹ 338.14 + 60.87 GST
Promax 12V Red Strobe Warning Light With Hooter Flashing Alarm
Promax 12V Red Strobe Warning Light With Hooter Flashing Alarm
Rating:
89%
USB Converters
₹499.00 ₹ 422.88 + 76.12 GST
38N30 MOSFET - FQA38N30  N-Channel Power MOSFET TO-3 Package - 300V 38.4A
38N30 MOSFET - FQA38N30 N-Channel Power MOSFET TO-3 Package - 300V 38.4A
Rating:
92%
USB Converters
₹243.00 ₹ 205.93 + 37.07 GST
IRF630 MOSFET  N-Channel Power MOSFET TO-220 Package - 200V 9A
IRF630 MOSFET N-Channel Power MOSFET TO-220 Package - 200V 9A
Rating:
91%
USB Converters
₹136.00 ₹ 115.25 + 20.75 GST
V5 915MHz 1000mW Wireless Radio Telemetry Kit for Pixhawk
V5 915MHz 1000mW Wireless Radio Telemetry Kit for Pixhawk
₹8,999.00 ₹ 7626.27 + 1372.73 GST
15mm Black Aluminum-Style Potentiometer Knob - Push-Fit for 6mm Knurled/Splined Shaft
15mm Black Aluminum-Style Potentiometer Knob - Push-Fit for 6mm Knurled/Splined Shaft
Rating:
91%
USB Converters
₹49.00 ₹ 41.53 + 7.48 GST
30 RPM 3V Linear Actuator N20 Micro Metal Gear DC Motor With M3 Screw 55mm Lead Shaft
30 RPM 3V Linear Actuator N20 Micro Metal Gear DC Motor With M3 Screw 55mm Lead Shaft
Rating:
89%
USB Converters
₹899.00 ₹ 761.86 + 137.13 GST
Multipurpose Aluminium Standard Servo Bracket Mount
Multipurpose Aluminium Standard Servo Bracket Mount
Rating:
89%
USB Converters
₹129.00 ₹ 109.32 + 19.68 GST

You may also be interested in

Bestselling Products

Popular Category Products

New Products

PROBOTS - ABOUT US

Probots offers Electronics Engineering Services to get your product from concept to production. We provide the following services - Circuit Designing, PCB Designing, Embedded Firmware Development, etc. We have successfully designed 100+ products in IoT, AI & ML, Automation, Robotics, Industrial Monitoring, Generic Consumer Devices, and Medical Devices.

We help customers build their own design and prototypes by supplying electronic parts. We stock a wide range of parts that we use for manufacturing products. These products are carefully sourced from best manufacturers at bulk pricings and we pass on the benefits to our customers. We sell Arduino, Raspberry Pi, IoT Sensors, ESP32, STM32 Development Boards, Electronic Components, Prototyping Tools and Robotics Parts.

Buy Arduino, Raspberry Pi, NodeMCU ESP32, Electronic Components, Plastic Enclosures and much more at Probots - India’s Largest Engineering and DIY Store

As one of India’s biggest distributors of electronic and technological components for the Embedded Systems and Robotics, we offer more than 110,000 products at a unique price-performance ratio, with maximum availability and minimum delivery times. With our broad spectrum of electronic components we are the ideal partner for component purchasing. In our online shop electronics engineers will find ICs and microcontrollers, as well as LEDs and transistors. We also offer resistors, capacitors, and pin-and-socket connectors and relays. We have the right equipment for your workplace, including soldering stations and multimeters as well as and high-quality tools. In addition, our product spectrum includes a large selection of items from plastic enclosures accessories and HDMI cables, batteries and rechargeable batteries. Have a look at our large selection of accessories. When it comes to and as well as connectors and memory cards our emphasis is on top quality at very attractive prices. Try out our fast dispatch service and top customer support, and compare our prices: We are certain that you will soon be among our satisfied customers.

WHERE TO BUY ELECTRONIC COMPONENTS ONLINE IN INDIA?

Probots sells the following items online - Arduino, Raspberry Pi Development Boards, NodeMCU ESP8266, ESP32, Sensors Modules, Electronic Components, Plastic Enclosures for Electronics, SMPS Power Suppliers, Resistors, Capacitors, and a wide range of products. You can order online on our website and we will deliver throughout India within 1-15 days.

ONLINE SHOPPING MADE EASY AT PROBOTS

If you would like to experience the best of online shopping for Electronic Modules & Components in India, you are at the right place. Probots is the ultimate destination for Electronics & Robotics, being host to a wide array of merchandise including Arduino, Raspberry Pi, NodeMCU ESP32, Sensors, Motor Drivers, Power Suppliers, SMPS, Batteries, Electronic Components, etc. You can get every part for your next project online and stop worrying about sourcing components from multiple sources. We sell products only after careful selection among multiple vendors. You can shop online at Probots from the comfort of your home and get your favourites delivered right to your doorstep.

BEST ONLINE SHOPPING SITE IN INDIA FOR ELECTRONICS & ROBOTICS

Irrespective of your project - IoT, Robotics, Python, OpenCV, AI, ML, Embedded Electronics, Automation, etc you will find all required components at probots.co.in. You will realise that the sky is the limit when it comes to the parts used in these projects and you can purchase them online on our store.

  • Plastic Enclosures
  • Electronic Modules
  • Electronics Components
  • Tools & Prototyping
  • Robotics 

BUY PLASTIC ENCLOSURES FOR ELECTRONICS IN INDIA

Probots manufactures and retails 100+plastic boxes and cases for electronic circuits. No minimum order quantity, bulk discounts available for business purchase. We make enclosures boxes for sensor nodes, controllers, IoT Products, handheld devices, wearables, wall mount devices, etc. 

Probots sells generic low cost effect enclosures, high quality premium IP65 Dust and Waterproof Enclosures, Enclosures with Transparent Lids, etc We have circuit enclosures boxes for all sizes - small, medium and large PCB boards. We also have Aluminium Enclosures, ABS enclosures, PVC Enclosures, Cabinets, Metal Boxes, etc. We also sell IP65 Waterproof PVC & Metal Cable Glands and Fan Filters

BUY Arduino Board Online India

Probots sells Arduino UNO, Arduino Mega, Arduino Nano, Arduino Pro, Mini, Micro, Lilypad, Due, and other development boards online in India. These boards come with Atmega328 and Atmega2560 and are great for learning electronics and programming. Order them online for your next robotics, electronic, IoT Project.


BUY Raspberry Pi Online India

Probots sells Raspberry Pi, Pico SBC (Single Board Computer), HDMI Displays, Raspberry Pi Starter Kit. We source them from official Distributors and offer the best quality development boards at lowest prices possible. We also sell a wide range of Raspberry Pi Accesories - Raspberry Pi Cameras & Lens, Heat sink Cases for Raspberry Pi, Raspberry Pi Sensors, Raspberry PI Power supplies, etc. Buy Raspberry Pi Online Now for your next Machine Vision Project, OpenCV Project, Image processing and recognition project!

Electronic Sensor Modules Online at Probots India

Buy Online Ultrasonic Sensors, Distance Sensors, Temperature Sensors, PIR Motion Sensors, ph Soil Sensors, Encoder Sensors, Magnetic Door Lock Sensors, Gas Sensors, Accelerometers & IMU Modules, Line Following Sensors, Force Flex Sensors, Current and Voltage Sensors, Flow Sensors, Light Sensors, Biometric Fingerprint Sensors, etc. We also have the latest electronic sensors for electronics and robotics like sound and voice sensors,  Gesture Recognition SEnsors, Load Cell Weight Sensors, etc. These sensors can be used with Arduino, Raspberry Pi, NodeMCU, ESP32 and other microcontrollers. Use them in your next electronics project. Order them online now.

Best Online Store for buying Electronic Components

Bits and pieces that make your project work are always hard to find. Probots has 500+ electronic components like Microcontroller ICs, LEDs, Header Pins, Connectors, Crystal Oscillators, Cables, Buzzers, Transistors, Motor Driver ICs,

Voltage Regulator ICs, ZIF & DIP Sockets, LED Holders, Switches, Potentiometers, LCD Displays, ICs, Resistors, Batteries & Holders, Heatsinks, Capacitors, Relays, Diodes, Heat shrink tubes, LED Displays, DIP Switches, Resistor Arrays, 7 Segment Displays, LED Strips, etc Chekout our wide range of electronic components and order them online in India now.

AFFORDABLE PARTS AT YOUR FINGERTIPS
Probots is one of the unique online electronics shopping sites in India where components are accessible to all. Check out our new arrivals to view the latest microcontrollers, sensors and ICs in the market. 

HISTORY OF PROBOTS
Becoming India’s no. 1 electronics destination is not an easy feat. Sincere efforts, digital enhancements and a team of dedicated personnel with an equally loyal customer base have made Proobts the onlie platform that it is today. The original B2C venture for electronics components was conceived in 2009 but transitioned into a full-fledged ecommerce giant within a span of just a few years. By 2012, Probots introduced 350 Indian and international brands to its platform, and this has only grown in number each passing year. Today Probots sits on top of the online electronics field with an astounding social media following, a loyalty program dedicated to its customers, and tempting, hard-to-say-no-to deals.

Probots Techno Solutions offers complete turn-key Embedded Electronics Design & Engineering Services. We can work on Product Specification through Prototyping, Proof of Concept to Production depending on individual client needs. 

Probots is one of the top Electronics Design companies based out of Bangalore. We provide range of Embedded Engineering Services that include Circuit Designing, PCB Designing, Customised IoT Hardware, Embedded Firmware Development, Hardware Prototyping, Proof of Concepts & Electronic Manufacturing Services.

With close to 10 years of solid experience in Electronics Design, we have successfully completed 100s of complex Electronic Product Designs across a wide range of domains - Consumer Products, Industrial, Medical and Aerospace Industries. Our team has completed projects for Fortune 500 companies as well as start-ups using both traditional and cutting edge technologies. 

Probots also offers consultancy, and testing services across the product and process development life cycle. 

Our biggest strength is our agile team that utilises our core experience, to deliver quick turnarounds giving you faster time-to-market.

Probots Store Reviews

4.6
8 Reviews
5 ★
500
4 ★
56
3 ★
25
2 ★
12
1 ★
29
5.0
Delivery
5.0
Quality
4.7
Products
Value: Great
Value

What Our Customers Say

Probots Electronics is highly regarded for its great selection of components and professional service. Customers frequently praise the awesome care and timely delivery provided by the team to ensure all products arrive safely.

Most relevant
Newest
Highest rating
Write a Review
📌 Showing reviews about:
No reviews found for this category. Show all reviews
Nischith shetty

Friendly staff but Too costly, price is 2x as compared to SP road.

Rajeev Ranjan Pandey

Worst experience. UPI payment of Rupee 1,609 was successfully debited, but the order was later cancelled and no refund was issued.

Varshaa Senthil kumar

The products were at reasonable cost and the service and care provided by the whole team to deliver it safe was really awesome.

Soma Dasgupta

Great selection of components. Highly recommended for electronics enthusiasts!

SANTHA KUMAR

Happy with my purchase from ProBots. Some components are slightly expensive compared to other stores, but many items are reasonably priced. Good support and service.

Arun R

Good store for IoT components. Prices could be better though.

Manoj K

Best place to buy electrical components. A bit pricey but worth it for the quality.

G C Electronics Jaipur

Good products - Timely delivery. Professional service.

Nischith shetty

Friendly staff but Too costly, price is 2x as compared to SP road.

Rajeev Ranjan Pandey

Worst experience. UPI payment of Rupee 1,609 was successfully debited, but the order was later cancelled and no refund was issued.

Varshaa Senthil kumar

The products were at reasonable cost and the service and care provided by the whole team to deliver it safe was really awesome.

Soma Dasgupta

Great selection of components. Highly recommended for electronics enthusiasts!

SANTHA KUMAR

Happy with my purchase from ProBots. Some components are slightly expensive compared to other stores, but many items are reasonably priced. Good support and service.

Arun R

Good store for IoT components. Prices could be better though.

Manoj K

Best place to buy electrical components. A bit pricey but worth it for the quality.

G C Electronics Jaipur

Good products - Timely delivery. Professional service.

Copyright © 2025-present Probots, Inc. All rights reserved.