Description:
The Uno R3 CH340G ATmega328pB Development Board is a cost-effective alternative to the popular Uno R3 Arduino. This version uses the CH340 USB to Serial converter chip instead of the Atmega16U2 chip.
We have extensively used these budget-friendly Arduino boards with CH340 chips and have found them to perform flawlessly. The CH340 chip is utilized only during programming and for serial output through the USB port. In regular operation, this board functions identically to the more expensive version without the CH340 chip.
Main changes from the older version:
- Two rows of holes for the pins (Male and Female), so it can be connected with normal female jumpers.
- Additional 3 rows of holes for wiring.
- Changes to the DIP package of ATMEGA328PB to flat package.
- CH340G replaces Atmega16U2.
How to Use:
- Download the IDE Arduino
Link: http://arduino.cc/en/Main/Software (Copy to open) - Download the USB chip driver
Link: http://www.5v.ru/zip/ch341ser.zip (Copy to open) - Plug in the UNO development board; the driver will be installed automatically.
- Select UNO from the menu.
- Select the COM port.
- The best choice first: Arduino comes with routine procedures, burn into it.
Features:
- The Arduino Uno R3 is a microcontroller board based on the ATmega328.
- It has 14 digital input/output pins (6 can be used as PWM outputs).
- 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button.
- It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.
- The Arduino Uno R3 differs from previous boards as it does not use the FTDI USB-to-serial driver chip.
- Instead, it features the Atmega16U2 (or Atmega8U2 up to version R2) programmed as a USB-to-serial converter.
- Revision 2 of the Uno board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU mode.
- Note: The Arduino Uno R3 reference design can use an Atmega8, 168, or 328. Current models use an ATmega328, but an Atmega8 is shown in the schematic for reference. The pin configuration is identical for all three processors.
Specification:
| Model Type | Arduino Uno R3 |
|---|---|
| Microcontroller Chip | ATmega328 (SMD) – Interface CH340G |
| Operating Voltage (VDC) | 5 |
| Input voltage | 7-12V |
| Input Voltage (limit) | 6-20V |
| Analog I/O Pins | 6 |
| Digital I/O Pins | 14 (of which 6 provide PWM output) |
| PWM Digital I/O Pins | 6 |
| DC Current for 3.3V Pin (mA) | 50 |
| DC Current per I/O Pin (mA) | 40 |
| Clock Speed | 16 MHz |
| SRAM | 2 |
| EEPROM | 1 KB (ATmega328) |
| Flash Memory | 32 KB |
| Power Supply Option | DC Jack or USB |
| On Board LEDs | On/Off, L (PIN 13), TX, RX |
| Operating Temperature (°C) | -40 to 90 |
| Dimensions (LxWxH) mm | 75 x 54 x 12 |
Package Includes:
-
1 x Arduino Uno R3 CH340G ATMega328PB Development Board
Datasheet of CH340G:
Datasheet of ATmega328pB:
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| Brand | Arduino |
|---|---|
| Interface / Protocol | BLE |
| SKU | AI0002 |
| Weight | 0.03 kg |
| Availability | In Stock |
Applications & Use Cases
The Arduino Uno R3 CH340G ATMega328PB Development Board Compatible with Arduino is a versatile boards compatible with arduino used across a wide range of applications including electronics learning, robotics, home automation, sensor interfacing, and motor control.
Common use cases:
- Learning programming and electronics
- Building a line-following robot
- Creating a home automation hub
This product is ideal for students, hobbyists, and electronics beginners.
Technical Tip: Arduino Uno is the standard learning board. Mega offers more pins for complex projects. Nano suits breadboard prototyping.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine Arduino product sourced from authorized channels
Tanvi Krishnan (verified owner) –
Fantastic Arduino Uno R3 CH340G ATMega328PB Development! All GPIO pins tested and working. Great for prototyping.
Ankit Menon –
Fantastic Arduino Uno R3 CH340G ATMega328PB Development! All GPIO pins tested and working. Great for prototyping.
Mohit Mittal (verified owner) –
Using this Arduino Uno R3 CH340G ATMega328PB Development for my smart farming project. Reliable and easy to interface.
PAWAN KUMAR (verified owner) –
Bhavna Vyas (verified owner) –
Good Arduino Uno R3 CH340G ATMega328PB Development. Took a while to get the drivers working but board itself is solid.
Rajesh Rajan (verified owner) –
Using this Arduino Uno R3 CH340G ATMega328PB Development for my smart farming project. Reliable and easy to interface.
Sandhya Kumar –
Okay Arduino Uno R3 CH340G ATMega328PB Development. Works but had to troubleshoot driver issues initially.
Shruti Hegde (verified owner) –
Perfect Arduino Uno R3 CH340G ATMega328PB Development for IoT projects. Easy to set up and program. Great documentation available online.
Souvik Nandi (verified owner) –
Amazing
Yashwant Mittal (verified owner) –
Average quality Arduino Uno R3 CH340G ATMega328PB Development. Functional but packaging was minimal.
Nikita Bhatt (verified owner) –
Excellent Arduino Uno R3 CH340G ATMega328PB Development! Perfect for my Arduino project. All pins working correctly.
Tarun Dhillon (verified owner) –
Using this Arduino Uno R3 CH340G ATMega328PB Development for my smart farming project. Reliable and easy to interface.
Gauri Sethi (verified owner) –
Outstanding quality Arduino Uno R3 CH340G ATMega328PB Development. I teach electronics and order these in bulk for my classes.
Deepika Banerjee –
Great Arduino Uno R3 CH340G ATMega328PB Development for my college mini project. Got good marks thanks to this working perfectly!
Naveen Dave (verified owner) –
Good Arduino Uno R3 CH340G ATMega328PB Development. Took a while to get the drivers working but board itself is solid.
Raghav Joshi (verified owner) –
This Arduino Uno R3 CH340G ATMega328PB Development is a must-have for any maker. Works perfectly with Arduino IDE.
Rakesh Negi –
Great quality Arduino Uno R3 CH340G ATMega328PB Development. Uploaded my first sketch and it worked flawlessly. Ideal for beginners.
Om Malhotra (verified owner) –
Good Arduino Uno R3 CH340G ATMega328PB Development. Took a while to get the drivers working but board itself is solid.
Gauri Rao –
Superb Arduino Uno R3 CH340G ATMega328PB Development! Compatible with all my existing Arduino shields and libraries.
Parth Dhawan (verified owner) –
Fantastic Arduino Uno R3 CH340G ATMega328PB Development! All GPIO pins tested and working. Great for prototyping.
Rohan Yadav –
Superb Arduino Uno R3 CH340G ATMega328PB Development! Compatible with all my existing Arduino shields and libraries.
Lakshmi Kamath (verified owner) –
Pretty good Arduino Uno R3 CH340G ATMega328PB Development. Compatible with most libraries. Happy with the purchase.