The Arduino MEGA 2560 CH340 R3 Compatible Board is an ATmega2560-based development board designed for projects that go well beyond what smaller boards like the Uno can handle. When a project starts demanding more I/O lines, more serial ports, or more program memory, this is the board most engineers and students reach for.
At its core, the board runs the ATmega2560 microcontroller — an 8-bit AVR chip from Microchip (formerly Atmel) — clocked at 16 MHz. The real strength here is the number of pins: 54 digital I/O lines (15 of which support PWM), and 16 analog inputs. That’s enough to connect servos, sensors, displays, keypads, and communication modules all at once without resorting to multiplexers.
This particular variant uses the CH340 USB-to-serial bridge chip instead of the ATmega16U2 found on original Arduino boards. In practice, this means the board works at a lower cost point while still providing stable USB communication. A CH340 driver is required on Windows systems, but it’s widely available and installs in minutes.
The microcontroller board input voltages between 6V and 20V (7V–12V recommended) through the barrel jack, and it regulates down to the 5V operating voltage internally. USB powering is also supported for programming and lighter loads.
StemVolt provides this arduino board for learner’s working on IoT projects, robotics, and smart automation systems.
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- ATmega2560 microcontroller with high memory capacity
- 54 digital I/O pins for extensive hardware interfacing
- 16 analog inputs for sensor-rich applications
- CH340 USB interface for stable communication
- 5V operating voltage for common modules
Technical Specifications:
| Specification | Details |
|---|---|
| Microcontroller (MCU) | ATmega2560 |
| Clock Speed | 16 MHz |
| Operating Voltage | 5V |
| Input Voltage (Recommended) | 7V – 12V |
| Input Voltage (Limit) | 6V – 20V |
| Digital I/O Pins | 54 (of which 15 support PWM output) |
| Analog Input Pins | 16 |
| Flash Memory | 256 KB (8 KB used by bootloader) |
| SRAM | 8 KB |
| EEPROM | 4 KB |
| USB Interface Chip | CH340 USB-to-Serial |
| IDE Compatibility | Arduino IDE (Windows / macOS / Linux) |
Applications:
- Mega 2560 based embedded systems
- Robotics projects with multiple sensors and actuators
- Advanced Arduino prototyping and development
- Multi-device IoT and communication projects
- Educational and research-based electronics systems
Package Includes:
-
1 × Arduino MEGA 2560 CH340 R3 Compatible Board
Frequently Asked Questions:
1. What is the Arduino MEGA 2560 CH340 R3 Compatible Board used for?
The Arduino MEGA 2560 CH340 R3 Compatible Board is built for projects that need more I/O pins and memory than a standard Uno can offer. It’s widely used in robotics, home automation projects. With 54 digital I/O pins, 16 analog inputs, and 256KB flash memory, it handles multi-tasking electronics projects with ease — making it a solid pick for Arduino developers.
2. What is the CH340 chip on this Arduino MEGA 2560, and does it affect performance?
The CH340 is a USB-to-serial converter chip used instead of the original ATmega16U2. It performs the same function — letting your computer communicate with the board over USB. For most Arduino development board projects, you won’t notice any difference in performance. You may need to install the CH340 driver manually on Windows, but it’s a quick one-time setup and works reliably after that.
3. Is this MEGA 2560 compatible with standard Arduino shields and libraries?
Yes, this is one of the most compatible arduino compatible boards available online. It follows the standard MEGA 2560 pinout, so virtually all MEGA-compatible shields — including motor driver shields, GPS modules, and LCD displays — fit directly. It also works with the official Arduino IDE without any special configuration. Your existing sketches and libraries will upload and run just as they would on an original board.
4. Can beginners use this arduino development board for learning electronics?
Absolutely. While the Mega 2560 is more capable than entry-level boards, beginners can start with simple LED, sensor, or display projects and gradually move toward more complex builds. StemVolt stocks this board specifically because it gives learners room to grow — you won’t outgrow it quickly. Paired with Arduino Kits and basic electronics components, it’s a practical long-term investment for students and hobbyists alike.
5. What kinds of projects can Arduino developers build with the MEGA 2560?
Arduino developers commonly use the Mega 2560 for projects like robotic arms, automated irrigation systems, RFID access control, weather stations, and multi-axis CNC controllers. Its extra UARTs also make it great for projects involving multiple serial devices like GPS, GSM, or Bluetooth modules running simultaneously. If your project has outgrown smaller boards and needs more pins, timers, or memory — this is the natural next step.
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