| Bulk Pricing | ||
|---|---|---|
| QTY | Unit Price(Inlc. GST) | |
| 25+ | ₹155.82 ₹ 132.05 + 23.77 GST | |
| 50+ | ₹152.64 ₹ 129.36 + 23.28 GST | |
| 75+ | ₹149.46 ₹ 126.66 + 22.8 GST | |
| 100+ | ₹146.28 ₹ 123.97 + 22.31 GST | |
High-stability Silicon Labs CP2102-based USB to TTL converter. Features dual 3.3V/5V power outputs and full hardware handshaking for reliable firmware flashing and debugging.
GL-12 840 Points Solderless Breadboard for Electronics Prototyping & DIY Projects ₹86.00 
USB to Serial TTL Converter ₹399.00 
BreadBoard Jumper Kit 140pcs Solderless Cable Wire for Prototyping ₹149.00 
FT232RL FTDI USB to TTL Serial Converter Module - 3.3V/5V Logic Programmer ₹239.00 
ESP-Prog Development Board JTAG Debug Programmer for ESP32 ₹2,999.00 The CP2102 USB-to-TTL Serial Converter enables communication between a computer and microcontrollers or electronic modules that use UART serial communication. It converts USB data into TTL-level UART signals and converts incoming UART data back into USB data, making it useful for programming, debugging, and serial communication with devices such as ESP32, Arduino, and other UART-enabled boards.
Controller: Silicon Labs CP2102.
USB Standard: USB 2.0 Full Speed.
Baud Rates: 300 bps to 1 Mbps.
Output Voltages: Dual 3.3V and 5V power pins available.
Logic Level: 3.3V (5V Tolerant inputs).
On-board Indicators: Power LED, TX and RX data LEDs.
Integrated Features: 1024-byte EEPROM, integrated clock, and voltage regulator.
Temperature Range: -40°C to +85°C.
Microcontroller Programming: The go-to tool for Pro Mini, ESP8266, and ESP32 boards.
Router & Modem Recovery: Access the serial console of network hardware to fix firmware issues.
DIY Data Loggers: Stream sensor data from your workbench directly into Excel or Python via Serial.
PLC Interfacing: Bridging modern PCs to legacy industrial equipment via UART.
Past Projects (Prerequisites): If you’ve spent hours wrestling with CH340 driver signatures on macOS or Windows 11, this is your solution.
Feature Upgrade: The CP2102 unlocks higher reliability at high baud rates (up to 921600) and provides much cleaner 3.3V power compared to entry-level converters. It also includes the DTR pin, essential for the "Auto-Reset" feature required by the Arduino IDE.
Effort/Requirements: Beginner Friendly. Silicon Labs officially maintain drivers and are often pre-installed in modern OS kernels.
⚠️ Wiring Tip: Remember that UART is a "cross-over" protocol. TX goes to RX!
| CP2102 Pin | Target Device Pin | Function |
| GND | GND | Ground (Essential) |
| TXD | RXD | Data Out |
| RXD | TXD | Data In |
| 3.3V | VCC (3.3V) | Power for low-power sensors |
| 5V | VIN/5V | Power for larger modules |
| DTR | RESET | Required for Arduino Auto-Flash |
Package Includes: 1 x CP2102 USB 2.0 to TTL UART Serial Converter Module
Why does my ESP32 enter a boot loop when powered through the converter?
The converter's power output may not supply enough current during Wi-Fi startup. Power the ESP32 from a suitable regulated supply and connect the grounds together.
Can I flash an ESP32 without pressing the BOOT button?
Yes, if the board's auto-programming circuit connects the converter's DTR and RTS signals to the ESP32's EN and GPIO0 pins. Otherwise, manual boot-mode selection may be required.
Why does the serial monitor display random characters at 115200 baud?
The baud rate may not match the firmware's configured rate. ESP32 boot messages can also use a different baud rate from the application's serial output.
Can I communicate with a GPS module and an Arduino simultaneously?
Yes, provided the converter's TX/RX lines are connected appropriately and the devices use compatible voltage levels. Multiple transmitters must not share the same RX line without suitable interface circuitry.
Will this converter work with a microcontroller that has no USB port?
Yes. It provides a USB-to-UART connection for microcontrollers with accessible TX and RX pins, provided their logic levels and serial settings are compatible.
Why does the COM port appear, but uploading firmware fails?
A detected COM port confirms USB enumeration, not correct target wiring. Check TX/RX connections, common ground, boot mode, reset circuitry, and the selected serial port.
Can I use the converter to capture boot messages before firmware starts?
Yes. Connect the converter's RX to the target's TX and connect GND. Open the serial terminal at the target's boot-log baud rate before resetting or powering on the device.
Can I connect two CP2102 converters to the same computer?
Yes. Each can provide a separate serial interface. Select the correct COM or device port for each connection to avoid communicating with the wrong target.
Can this module communicate with RS485 or RS232 equipment directly?
No. The CP2102 provides UART-level serial signals, not RS485 differential signaling or RS232 voltage levels. Use a suitable RS485 or RS232 transceiver between the converter and the equipment.
Can I leave the converter connected while powering my target board separately?
Yes, if the wiring is designed correctly. Connect the signal ground and UART lines, and avoid connecting two power outputs together. Disconnect the converter's VCC pin when the target is powered independently unless the circuit explicitly supports shared power.
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 delivery electronics components and parts throughout India using standard couriers like Bluedart, Delhivery & India Post.
For order related queries contact -
This item is covered by a warranty of 7 days from the date of delivery, against confirmed manufacturing defects only, as verified by Probots' own testing and investigation. In case of a confirmed defect, we will replace the item — a refund is issued only if a replacement can't be supplied (e.g. discontinued or out of stock). Transit damage or a wrong item received must be reported within 3 days of delivery.
If the product shows signs of misuse, tampering, physical damage, static discharge, liquid or fire damage, use of unapproved chemicals, or has been soldered or physically altered in any way.
China
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 -
Probots Electronics is highly regarded for its highly skilled team and knowledgeable staff who provide expert guidance to ensure customers select the right components for their technical projects. The business maintains a strong reputation for prompt service and reliable support, with many clients praising their quick response times and genuine commitment to customer satisfaction.
⭐⭐⭐⭐⭐ Excellent experience at this electronic equipment store! They have a good range of quality electronic products at reasonable prices. The staff is polite, knowledgeable, and helpful in choosing the right products. Great customer service and a smooth shopping experience. Highly recommended for anyone looking for electrical equipment! 👍
Best
A very great place for electronics Such a well maintained shop... Felt good shopping here
Nice
For new developments kit available and they will support till working, and I suggest this place strongly
This place has all the electronic parts students will ever need, staff is friendly and the place is organised.
Had a great experience at ProBots Koramangala! The staff was friendly, helpful, and professional. The overall environment was excellent, and I really appreciated the support and guidance provided throughout. Everything was well organized and smooth. Highly recommended for anyone looking for a good experience with robotics and technology! ⭐⭐⭐⭐⭐
It was a really nice experience! I was happy to find such a wide range of robotics kits for kids, suitable for different age groups and learning levels.
Excellent experience
Get better components in right place
Good stuff
Buyed them. But no bargain. Helpful staff.
if you have opted for store pickup, there is no clear communication, although the staff took accountability and did the needful
I had ordered online from Probots.co.in, and set Probots-KMG shop as self pickup. They messaged in whatsapp, once the order was packed and ready for pickup by rapido/porter. Good service.
Available all children school project spears parts like electronics
It was good experience
⭐⭐⭐⭐⭐ Excellent experience at this electronic equipment store! They have a good range of quality electronic products at reasonable prices. The staff is polite, knowledgeable, and helpful in choosing the right products. Great customer service and a smooth shopping experience. Highly recommended for anyone looking for electrical equipment! 👍
Best
A very great place for electronics Such a well maintained shop... Felt good shopping here
Nice
For new developments kit available and they will support till working, and I suggest this place strongly
This place has all the electronic parts students will ever need, staff is friendly and the place is organised.
Had a great experience at ProBots Koramangala! The staff was friendly, helpful, and professional. The overall environment was excellent, and I really appreciated the support and guidance provided throughout. Everything was well organized and smooth. Highly recommended for anyone looking for a good experience with robotics and technology! ⭐⭐⭐⭐⭐
It was a really nice experience! I was happy to find such a wide range of robotics kits for kids, suitable for different age groups and learning levels.
Excellent experience
Get better components in right place
Good stuff
Buyed them. But no bargain. Helpful staff.
if you have opted for store pickup, there is no clear communication, although the staff took accountability and did the needful
I had ordered online from Probots.co.in, and set Probots-KMG shop as self pickup. They messaged in whatsapp, once the order was packed and ready for pickup by rapido/porter. Good service.
Available all children school project spears parts like electronics
It was good experience
● 13 min readWorkbench Vol. 51 🚀 The Project Trifecta: 3 Builds to Start Today We don’t just stock parts; we curate ecosystems. This week’s arrivals are desi
Read Article →
● 15 min readVol. 60 | The Battle for the Silicon Ear You want to build a custom voice assistant that doesn’t send your data to the cloud, or maybe a multi-r
Read Article →
● 10 min readWorkbench Vol. 50 🚀 The Project Trifecta: 3 Builds to Start Today We don’t just stock parts; we curate ecosystems. This week’s arrivals are desi
Read Article →
