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An Arduino Mega 2560 CH340G is a replica or imitation of the original Arduino Mega 2560, 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 Mega 2560 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 Mega 2560 is a microcontroller board based on the ATmega2560. It has 54 digital input/output pins (15 of which can be used as PWM outputs), 16 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.

Difference between Arduino Mega 2560 original and CH340G version

Arduino Mega 2560 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.
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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 Mega 2560 and an Arduino Mega 2560 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 Mega 2560 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 Mega2560 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 Mega CH340G:

The pinout of the Arduino Mega 2560 CH340G is quite much similar to its original version. You can check it in the following image:

Arduino-Buying-Guide-Arduino-MEGA-pinout.jpg

Specificatoins of Arduino Mega 2560 CH340G (Clone to Arduino Mega 2560 R3):

  • Microcontroller: ATmega2560
  • Operating Voltage: 5V
  • Input Voltaget: 7-12V
  • Digital I/O Pins: 54 (of which 15 provide PWM output)
  • Analog Input Pins: 16
  • DC Current per I/O Pin: 20 mA
  • DC Current for 3.3V Pin: 50 mA
  • Flash Memory: 256 KB of which 8 KB is used by the bootloader
  • SRAM: 8 KB
  • EEPROM: 4 KB
  • Clock Speed: 16 MHz
  • USB-to-Serial Converter Chip: CH340G
  • USB Connector: Type-B
  • Dimensions: 101.52mm x 53.3mm

FAQs

Here are some frequently asked questions (FAQs) about the Arduino Mega 2560 CH340G:

 

How do I power the Arduino Mega 2560 CH340G?

 

Just like the original Arduino Mega 2560 boards, you can power this board with an external power supply of up to 12v (like adapters, or a batteries).

 

Can I program Arduino Mega 2560 CH340G with Python?

 

Yes. But it’s better not to do this. If you interested in Python programming, you can use Raspberry Pi pico or ESP32/8266 based development boards.

 

What programming language does Arduino Mega 2560 CH340G use?

 

Arduino Mega 2560 CH340G is compatible with all of softwares/hardwares that used for genuine Arduino Mega 2560. So, it can be programmed using Arduino IDE and Platform IO.

 

What is the maximum current I can draw from each pin on Arduino Mega 2560 CH340G?

 

Each digital or analog pin on the Arduino Mega 2560 CH340G can source or sink a maximum current of 20 mA. The total current for all pins should not exceed 200 mA.

 

Can I use shields designed for other Arduino boards with Arduino Mega 2560 CH340G?

 

Yes you can! Arduino Mega 2560 CH340G is compatible with most of the shields designed for Arduino boards. You can choose and buy the one you want from the variety of shields available on the site.

 

What can I do with Arduino Mega 2560 CH340G?

 

All the things that you could do with the original Arduino Mega 2560, you can do with this board. The possibilities with Arduino Mega 2560 CH340G are vast, and the open-source nature of the Arduino platform means there is a wealth of resources, tutorials, and community support available to help you with your projects. Whether you're a beginner or an experienced maker, Arduino Mega 2560 CH340G provides a great platform for learning and creating.

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