An Arduino UNO CH340G is a replica or imitation of the original Arduino UNO, which is an official Arduino board. CH340G versions are typically produced by third-party manufacturers and are designed to be functionally equivalent to the official boards. These clones are often more affordable than official Arduino products, making them popular among hobbyists and makers on a budget. While the components and layout may vary slightly from the original, the UNO CH340G is compatible with the Arduino software and can be programmed using the same IDE, making it a practical choice for those seeking a budget-friendly option for their projects.

Arduino UNO is a microcontroller board based on the ATmega328. It’s an 8-bit microcontroller with 32KB of Flash memory and 2KB of RAM. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, 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.

Difference between Arduino UNO original and CH340G version

Arduino UNO boards can be found both in original versions produced by Arduino and in clones (Here CH340G version) manufactured by various Chinese companies.

We will introduce you the differences that the original Arduino board and the copy may have.

It is necessary to point out that the version that is sold on our site is an exact clone of the original board and in terms of functionality and quality, they are not different from the original version.

The primary difference between a genuine Arduino UNO and an Arduino UNO CH340 lies in the USB interface chip used for communication between the board and the computer.

Here are some general differences that are often observed:

• USB-to-Serial Interface: While the genuine Arduino UNO uses Atmega16u chip as a USB-to TTL converter, CH340 version uses this chip for this section .The CH340 is a USB-to-serial converter chip commonly used on Arduino clones. It is used to facilitate communication between the Arduino board and a computer through a USB connection.
• Driver Installation: To connect a device with the CH340G USB-to-serial converter to your computer, you must install driver for it. In original version, it not needed. You can read “how to install driver for CH340 driver” article for this stuff.
• Pricing: Original Arduino boards are generally more expensive than Chinese copies. The lower cost of Chinese copies may make them attractive to budget-conscious users.
• Capabilities: The primary purpose of the ATmega16U2 in this context is to handle the USB communication between the Arduino board and a computer. But since it is a microcontroller, it can do other things as well. As an example, by changing the program of this microcontroller, you can turn any Arduino with it into a HID device.
• Build Quality: Original Arduino boards are typically manufactured to higher quality standards. The components used, soldering quality, and overall build may be superior to some Chinese clones.

It's important to note that not all Chinese copies are of poor quality, and some functions perfectly well. However, users should be aware of potential differences in quality when choosing between an original Arduino UNO and a CH340 version of it.

Considering the price difference in most cases, buying a quality copy of Arduino is a more suitable option for most users.

Pinout of Arduino UNO CH340G:

The pinout of the Arduino UNO CH340G is quite much similar to its original version. You can see it in the following image:

FAQs

Here are some frequently asked questions (FAQs) about the Arduino UNO CH340G: