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Arduino Mega 2560 CH340

RBD-1397
  • Programmer: CH340
  • Operating Voltage 5V
  • Input Voltage (recommended) 7-12V
  • Input Voltage (limits) 6-20V
  • Digital I/O Pins 54 (of which 15 provide PWM output)
  • Analog Input Pins 16
  • DC Current per I/O Pin 40 mA
  • DC Current for 3.3V Pin 50 mA
  • Flash Memory 256 KB of which 8 KB used by bootloader
BDT 1,630
rating Read the 6 reviews
Average rating: 5/5 - Number of reviews: 6
Quantity
In-Stock

  • Store Pickup Available! Store Pickup Available!
  • Free Ship Over 5000 BDT Free Ship Over 5000 BDT
  • Quality Product Quality Product
  • No Warranty No Warranty
  • No Replacement No Replacement
Description

The ATmel MCU ATMEGA16U2 MEGA 2560 R3 Improved Version CH340G Board is a micro-controller board base on the ATmega2560. It has a USB host interface to connect with Android based phones, base on the MAX3421e IC. RoboticsBD

It has 54 digital input/output pins (of which 15 can be used as PWM outputs); 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator; a USB connection, a power jack, an ICSP header, and a reset button. The MEGA ADK is base on the Mega 2560. Similar to the Mega 2560 and Uno, it features an ATmega8U2 program as a USB-to-serial converter. Revision 3 of the Mega ADK board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU(Device Firmware Upgrade) mode. RoboticsBD

The board has the following new features:

  • 1.0 pin-out: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In the future, shields will be compatible both with the board that uses the AVR, which operate with 5V and with the Arduino Due that operates with 3.3V. The second one is a not connected pin, that is reserved for future purposes.
  • Stronger RESET circuit.

The Mega Arduino R3 Android Accessory Development Kit (ADK) can be power via the USB connection or with an external power supply. The power source is select automatically. External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board’s power jack. RoboticsBD

Leads from a battery can be inserted in the GND and Vin pin headers of the POWER connector. Because the Mega R3 Android Accessory Development Kit (ADK) is a USB Host, the phone will attempt to draw power from it when it needs to charge. When the ADK is power over USB, 500mA total is available for the phone and board.

Difference USB controller version:

Because Atmel is moving more and more of their production capacity to surface mount ICs, the DIP packaged ATmega is becoming more and more difficult to get. The board is identical to the PTH version of the Uno, but you won't be able to remove the ATmega without some hot-air. This change shouldn't affect most users. Besides - when was the last time you managed to destroy an ATmega and needed to repair an Arduino board? Those things are nearly indestructible.

*Please note that the boards have a CH340G USB-Controller rather than ATmega16 like regular MEGA2560. They are recognized on Linux without any additional drivers. Mac OS and Windows users may need to install an additional driver. RoboticsBD

Features :

Arduino Mega 2560 Improved version CH340G Board:
  1. Programmer: CH340
  2. Operating Voltage 5V
  3. Input Voltage (recommended) 7-12V
  4. Input Voltage (limits) 6-20V
  5. Digital I/O Pins 54 (of which 15 provide PWM output)
  6. Analog Input Pins 16
  7. DC Current per I/O Pin 40 mA
  8. DC Current for 3.3V Pin 50 mA
  9. Flash Memory 256 KB of which 8 KB used by bootloader
  10. SRAM 8 KB
  11. EEPROM 4 KB
  12. Clock Speed 16 MHz

General Specification
Input Voltage (recommended) 7-12V
Digital I/O Pins 54 (of which 15 provide PWM output)
Analog Input Pins 16
Flash Memory 256 KB of which 8 KB used by boot-loader.
Microcontroller ATmega2560
Operating Voltage 6~12V
PWM Output Pins 14
Dimensions (mm) LxWxH 110 x 53 x 15 mm.
Weight (gm) 35
Shipment Weight 0.037 kg
Shipment Dimensions 10.5 × 5.5 × 1.5 cm

Power
The external power regulator can supply up to 1500mA. 750mA is available for the phone and MEGA ADK board. An additional 750mA is allocated for any actuators and sensors attached to the board. A power supply must be capable of providing 1.5A to use this much currentThe board can operate on an external supply of 5.5 to 16 volts. If supply with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts. The power pins are as follows:

  • VIN. The input voltage to the Arduino board when it’s using an external power source (as opposed to 5 volts from the USB connection or another regulated power source). You can supply voltage through this pin, or, if supplying voltage via the power jack, access it through this pin.
  • 5V. This pin outputs a regulated 5V from the regulator on the board. The board can be supply with power either from the DC power jack (7 – 12V), the USB connector (5V), or the VIN pin of the board (7-12V). Supplying voltage via the 5V or 3.3V pins bypasses the regulator, and can damage your board. We don’t advise it.
  • 3V3. A 3.3 volt supply generated by the onboard regulator. Maximum current draw is 50 mA.
  • GND. Ground pins.
  • IOREF. This pin on the Arduino board provides the voltage reference with which the microcontroller operates. A properly configured shield can read the IOREF pin voltage and select the appropriate power source or enable voltage translators on the outputs for working with the 5V or 3.3V.

Memory

The Mega R3 Android Accessory Development Kit (ADK) has 256 KB of flash memory for storing code (of which 8 KB is used for the bootloader); 8 KB of SRAM and 4 KB of EEPROM (which can be read and written with the EEPROM library).

Input and Output

Each of the 50 digital pins on the Mega R3 Android Accessory Development Kit (ADK) can be used as an input or output; using pinMode(), digitalWrite(), and digitalRead() functions. They operate at 5 volts. Each pin can provide or receive a maximum of 40 mA . has an internal pull-up resistor (disconnect by default) of 20-50 kOhm. In addition, some pins have specialized functions:

      • Serial : 0 (RX) and 1 (TX), Serial 1: 19 (RX) and 18 (TX), Serial 2: 17 (RX) and 16 (TX), Serial 3: 15 (RX) and 14 (TX). Use to receive (RX) and transmit (TX) TTL serial data. Pins 0 and 1 are also connected to the corresponding pins of the ATmega8U2 USB-to-TTL Serial chip.
      • External Interrupts: 2 (interrupt 0), 3 (interrupt 1), 18 (interrupt 5), 19 (interrupt 4), 20 (interrupt 3), and 21 (interrupt 2). These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. See the attachInterrupt() function for details.
      • PWM: 2 to 13 and 44 to 46. Provide 8-bit PWM output with the analogWrite() function.
      • SPI: 50 (MISO), 51 (MOSI), 52 (SCK), 53 (SS). These pins support SPI communication using the SPI library. The SPI pins are also broken out on the ICSP header, which is physically compatible with the Uno, Duemilanove, and Diecimila.
      • USB Host: MAX3421E.

MAX3421E
  • communicate with Arduino with the SPI bus. So it uses the following pins:
  • Digital: 7 (RST), 50 (MISO), 51 (MOSI), 52 (SCK).
    Note: Please do not use Digital pin 7 as input or output because is used in the communication with MAX3421E
  • Non broken out on headers: PJ3 (GP_MAX), PJ6 (INT_MAX), PH7 (SS).
  • LED: 13. There is a built-in LED connected to digital pin 13. When the pin is HIGH value, the LED is on, when the pin is LOW, it’s off.
  • TWI: 20 (SDA) and 21 (SCL). Support TWI communication using the Wire library. Note that these pins are not in the same location as the TWI pins on the Duemilanove or Diecimila.

The Mega R3 Android Accessory Development Kit (ADK) has 16 analog inputs, each of which provides 10 bits of resolution (i.e. 1024 different values). By default, they measure from ground to 5 volts, though is it possible to change the upper end of their range using the AREF pin and analogReference() function. There are a couple of other pins on the board:

  • AREF. Reference voltage for the analog inputs. Use with analogReference().
  • Reset. Bring this line LOW to reset the micro-controller. Typically used to add a reset button to shields which block the one on the board.

Communication

The Mega R3 Android Accessory Development Kit (ADK) has a number of facilities for communicating with a computer, another Arduino, or other micro-controllers. The ATmega2560 provides four hardware UARTs for TTL (5V) serial communication. An ATmega8U2 on the board channels one of these over USB and provides a virtual com port to software on the computer (Windows machines will need a .inf file, but OSX and Linux machines will recognize the board as a COM port automatically. The Arduino software includes a serial monitor which allows simple textual data to be sent to and from the board.

The RX and TX LEDs on the board will flash when data is being transmitted via the ATmega8U2/16U2 chip and USB connection to the computer (but not for serial communication on pins 0 and 1). A Software-serial library allows for serial communication on any of the MEGA ADK’s digital pins. The ATmega2560 also supports TWI and SPI communication. The Arduino software includes a Wire library to simplify the use of the TWI bus, see the Wire library for details. For SPI communication, use the SPI library.

The USB host interface given by MAX3421E IC allows the Arduino MEGA ADK to connect and interact to any type of device that has a USB port. For example, allows you to interact with many types of phones, controlling Canon cameras, interfacing with keyboard, mouse and games controllers as Wiimote and PS3.

Programming

The Mega R3 Android Accessory Development Kit (ADK) can be the program with the Arduino software (download). For details, see the reference and tutorials. The ATmega2560 on the MEGA ADK comes preburn with a boot-loader (the same on Mega 2560) that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the original STK500v2 protocol (reference, C header files).

You can also bypass the bootloader and program the microcontroller through the ICSP (In-Circuit Serial Programming) header using Arduino ISP or similar; see these instructions for details. The ATmega8U2 firmware source code is available in the Arduino repository. The ATmega8U2 is load with a DFU bootloader, which can be activated by:

  • On Rev1 boards: connecting the solder jumper on the back of the board (near the map of Italy) and then resetting the 8U2.
  • On Rev2 or later boards: there is a resistor that pulling the 8U2/16U2 HWB line to ground, making it easier to put into DFU mode. You can then use Atmel’s FLIP software (Windows) or the DFU programmer (Mac OS X and Linux) to load a new firmware. Or you can use the ISP header with an external programmer (overwriting the DFU bootloader). See this user-contributed tutorial for more information.

Automatic (Software) Reset

Rather then requiring a physical press of the reset button before an upload, the Arduino MEGA ADK is designed in a way that allows it to be reset by software running on a connected computer. One of the hardware flow control lines (DTR) of the ATmega8U2 is connected to the reset line of the ATmega2560 via a 100 nano-farad capacitor. When this line is asserted (taken low), the reset line drops long enough to reset the chip. The Arduino software uses this capability to allow you to upload code by simply pressing the upload button in the Arduino environment.

This means that the boot-loader can have a shorter timeout, as the lowering of DTR can be well-coordinated with the start of the upload. This setup has other implications. When the MEGA ADK is connected to either a computer running Mac OS X or Linux, it resets each time a connection is made to it from software (via USB). For the following half-second or so, the bootloader is running on the MEGA ADK. While it is programmed to ignore malformed data (i.e. anything besides an upload of new code), it will intercept the first few bytes of data sent to the board after a connection is open.

If a sketch running on the board receives one-time configuration or other data when it first starts; make sure that the software with which it communicates waits for a second after opening the connection and before sending this data. The MEGA ADK contains a trace that can be cut to disable the auto-reset. The pads on either side of the trace can be solder together to re-enable it. It’s the label “RESET-EN”. You may also be able to disable the auto-reset by connecting a 110-ohm resistor from 5V to the reset line; see this forum thread for details.

USB Over-current Protection

The Mega R3 Android Accessory Development Kit (ADK) has a resettable polyfuse that protects your computer’s USB ports from shorts and overcurrent. Although most computers provide their own internal protection, the fuse provides an extra layer of protection. If more than 500 mA is applied to the USB port. The fuse will automatically break the connection until the short or overload is removed.

Physical Characteristics and Shield Compatibility

The maximum length and width of the Mega R3 Android Accessory Development Kit (ADK) PCB are 4 and 2.1 inches respectively; with the USB connector and power jack extending beyond the former dimension. Three screw holes allow the board to be attached to a surface or case. Note that the distance between digital pins 7 and 8 is 160 mil (0.16″); not an even multiple of the 100 mil spacing of the other pins. The MEGA ADK is designed to be compatible with most shields design for the Uno, Diecimila or Duemilanove.

Digital pins 0 to 13 (and the adjacent AREF and GND pins), analog inputs 0 to 5; the power header, and ICSP header are all in equivalent locations. Further, the main UART (serial port) is located on the same pins (0 and 1); as are external interrupts 0 and 1 (pins 2 and 3 respectively). SPI is available through the ICSP header on both the MEGA ADK and Duemilanove / Diecimila.

Please note that I2C is not located on the same pins on the MEGA ADK (20 and 21); as the Duemilanove / Diecimila (analog inputs 4 and 5). 

Package Includes :

1 x Arduino Mega 2560 CH340

1 x Cable for Arduino Mega 2560.

Product Details
RBD-1397
25 Items
Arduino Mega 2560 CH340
rating
03/09/2022
Aimaan
Good product with great packaging
Ok
rating
17/08/2022
Pritom Chowdhury
Works fine
Great
rating
17/12/2021
Abdullah Ali Munawar
Just perfect
C
rating
26/07/2021
Asif Ahmed
Good
Good product
rating
11/05/2021
Md. Masrur Saqib
Good product
Nice
rating
22/02/2021
Ekhtiar Riju
Xoss
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Integrated 0.96″ OLED Micro USB connection Compatible with Arduino Compatible with NodeMCU(Lua for ESP8266) Input Power 5V Compatible for Arduino Compatible with NodeMCU(Lua for ESP8266)

Price BDT 1,250
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On sale! Arduino LilyPad 328 ATmega328P Quick view

Reference: RBD-0682

Arduino LilyPad 328 ATmega328P

Microcontroller: ATmega168 or ATmega328V Operating Voltage: 2.7-5.5 V Digital I/O Pins: 14 PWM Channels: 6 Analog Input Channels: 6 DC Current per I/O Pin: 40 mA Board will run from 2V to 5V. The latest version of the LilyPad supports automatic reset for even easier programming. The back side of the LilyPad is now completely flat! RoboticsBD

Price BDT 699
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ESP-32S ESP-WROOM-32... Quick view

Reference: RBD-1820

ESP-32S ESP-WROOM-32 Development Board 38P NodeMCU

38 Pin version 2.4GHz Dual-Mode WiFi + Bluetooth Development Board, 38PIN Ultra-Low power consumption works perfectly with the IDE

Price BDT 880
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Nextion NX3224T024 -... Quick view

Reference: RBD-1217

Nextion NX3224T024 - Generic 2.4" TFT LCD Touch Display

Nextion is a seamless Human Machine Interface (HMI) solution. Nextion provides a control and visualization interface between a human and a process, machine, application or appliance.  Nextion is mainly applied to Internet of thing (IoT) or consumer electronics field.

Price BDT 3,099
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Altera Cyclone IV EP4CE6... Quick view

Reference: RBD-1827

Altera Cyclone IV EP4CE6 FPGA Development Board NIOSII EP4CE PCB and USB Blaster Jtag AS Programmer

Altera Cyclone IV EP4CE6 FPGA Development Board NIOSII EP4CE PCB  USB Blaster Jtag AS Programmer

Price BDT 8,825
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Digispark Pro - ATtiny167... Quick view

Reference: RBD-1809

Digispark Pro - ATtiny167 with Micro USB

Digispark Pro  ATtiny167  Micro USB 16MHz

Price BDT 690
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Cable for Arduino Nano (USB... Quick view

Reference: RBD-1131

Cable for Arduino Nano (USB 2.0 A to USB 2.0 Mini B) 30cm

Up to 480 Mbps data transfer rate. USB Type: Type-A to Mini-B Weight: 15 gm Length: 30 cm Exclusively designed for Arduino boards.

Price BDT 50
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ON/OFF Switch 12VDC Quick view

Reference: RBD-0994

ON/OFF Switch 12VDC

Current Rating: 10 Amps Operating Voltage: 12 Volts Switch Type: Rocker Switch, SPST Terminal: Spst Mounting Type: Tension

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Water Level Sensor Depth of Detection Water Sensor for Arduino Quick view

Reference: RBD-0683

Water Level Sensor Depth of Detection Water Sensor for Arduino

Operating voltage: DC3-5V Operating current: less than 20mA Sensor Type: Analog Detection Area: 40mmx16mm Operating temperature: 10℃-30℃ Humidity: 10% -90% non-condensing

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PIR Motion Sensor Quick view

Reference: RBD-0023

PIR Motion Sensor

Wide Working Voltage Range: DC 4.5V- 20V Current Drain: <60uA Detection Angle: <140° Detection Distance: 3 to 7m (can be adjusted) Blockade time: 2.5s (Default)  Work temperature: -20-+80°C

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On sale! Waterproof DS18B20 Digital Thermal Probe or Sensor Quick view

Reference: RBD-0414

Waterproof DS18B20 Digital Thermal Probe or Sensor

A probe by new original installation import DS18B20 temperature sensor chip. RoboticsBD Chip each pin use heat shrinkable tube to prevent short circuit, internal sealing glue, waterproof, moistureproof. Stainless steel tube encapsulation waterproof moistureproof prevent rust. Stainless steel shell (6 * 45 mm), lead length 100 cm (shielding wire) use...

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Songle Power 12VDC Relay SRU-12VDC-SL-C PCB 5 Pin Quick view

Reference: RBD-0751

Songle Power 12VDC Relay SRU-12VDC-SL-C PCB 5 Pin

MODEL: 12VDC WEIGHT: 50.00g DIMENSIONS: 1.80cm x 1.50cm x 1.60cm

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Hall Effect Sensor A1302 Quick view

Reference: RBD-1199

Hall Effect Sensor A1302

Low-noise output Fast power-on time Ratiometric rail-to-rail output 4.5 to 6.0 V operation Solid-state reliability Factory-programmed at end-of-line for optimumperformance Robust ESD performance 

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Push Switch Big Quick view

Reference: RBD-1789

Push Switch Big

250V 3A 2 Terminal SPST On/Off Momentary Red Push Button Switch

Price BDT 15
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Raspberry Pi Heat Sink 3 Pcs Quick view

Reference: RBD-1247

Raspberry Pi Heat Sink 3 Pcs

Reduces the risk of hardware failure due to overheating Low profile, will fit into most cases. Simple, Passive cooling. No need for noisy fans. Perfectly sized for the RPi’s CPU

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