Arduino MEGA 2560 R3

Mega 2560 is an Arduino board based on ATmega2560. It is one of the most advanced ATmega based Arduinos in terms of processor. It has 54 digital I/O pins. 14 of them can be used as PWM outputs. It has 16 analog inputs, 4 UART (serial ports), 16 MHz crystal oscillator, USB connection, adapter input, ICSP output and a reset button. With the Mega 2560 R3 model, the 16U2 model was used instead of the 8U2 model in the previous versions. In this way, faster data transfer is achieved using less memory. 
It is compatible with all shields designed for Arduino Duemilanove and Diecimila. Thanks to more pins, we can use this advanced processor in many projects such as 3D printers that we cannot do with entry-level Arduinos such as Uno. Arduino Mega 2560 R3 is the latest model of Arduino Mega. It supports all the features found in previous models. 

Arduino Mega 2560 can be powered from USB and an external adapter or battery. The power source is selected automatically. The board can be fed from an external source between 6-20V. If the supply is below 7V, the 5V output pin cannot give 5V and the board may work unbalanced. If an external power source higher than 12V is used, the voltage regulator may overheat and damage the board. It is recommended to use 7-12 Volts.

It is an open source development platform. You can easily program microcontrollers with Arduino libraries. Thanks to its analog and digital inputs, you can process analog and digital data. You can easily design systems that can interact with its environment. You can design systems by processing the received data using sensors. You can make new hardware with the outputs of the systems you designed.

Features:

• Microcontroller ATmega2560
• Operating voltage 5V
• Input Voltage (recommended) 7-12V
• Input Voltage (limit) 6-20V
• Digital I/O Pins 54 (which provide 15 PWM outputs)
• Analog Input Pins 16
• DC Current 20 mA per I/O Pin
• DC Current 50 mA for 3.3V Pin
• Flash Memory 8 KB of which 256 KB is used by the bootloader
• SRAM 8KB
• EEPROM 4KB
• Clock speed 16MHz
• Length 101.52mm
• Width 53.3mm
• Weight 37g 

Package Included:

• 1 x Arduino MEGA 2560 R3 Clone (CH340)
• 1 x USB Programming Cable

Do you want to know the work of RFID Reader/Writer RC522 SPI S50 CARD AND KEYCHAIN, then this Product is best for you . With this Product, you can detect radio waves produced by a reader to detect the presence of (then read the data stored on) an RFID tag

This is RFID Reader/Writer RC522 SPI S50 CARD AND KEYCHAIN which works on non-contact 13.56mhz communication, is designed by NXP as low power consumption, low cost, and compact size read and write chip, is the best choice in the development of smart meters and portable hand-held devices.

It uses an advanced modulation system, fully integrated at 13.56MHz with all kinds of positive non-contact communication protocols. Support 14443A compatible answer signal. DSP deals with ISO14443A frames and error correction.

This module can fit directly in handheld devices for mass production. The module uses the 3.3V power supply and can communicate directly with any CPU board by connecting through the SPI protocol, which ensures reliable work, good reading distance.

Features :

1. Highly integrated analog circuitry to demodulate and decode responses.
2. Supports ISO/IEC 14443 A/MIFARE.
3. Typical operating distance in reading/Write mode up to 50 mm.
4. Supports ISO/IEC 14443 A higher transfer speed communication up to 848 kBd.
5. SPI up to 10 Mbit/s.
6. FIFO buffer handles 64 bytes send and receive.
7. Flexible interrupt modes.
8. Power-down by software mode.
9. Programmable Timer.
10. 2.5 V to 3.3 V power supply.
11. CRC coprocessor.
12. Internal self-test.

Package Includes

1 x RFID-RC522 Reader/Write Module
1 x Standard blank RFID card
2 x A Straight & right-angle header strip
1 x Special-shaped keychain RFID tag

This is an Arduino UNO compatible board based on the domestic chip LGT8F328P chip. It is an enhanced 8-bit RISC core. It is optimized for the original architecture. The instruction execution speed is faster. At the same time, it optimizes the flash part, adds timer 3, built-in crystal oscillator, and increases DAC output. The main frequency can be up to 32M. Lower power consumption.

Comparison of LGT8F328P and Atmega328P chips

LGT8FX8P series microcontrollers currently mainly include three package chips LGT8F328P-SSOP20, LQFP32 and LQFP48.

• Enhanced 8-bit RISC core, support 16-bit digital operation extension, in the working range of 1.8V – 5.5V, support internal crystal oscillator, can run at the core frequency of up to 32MHz;

• LGT8F328P has internal 32K bytes FLASH program memory, 2K bytes data SRAM, built-in control logic that simulates FLASH as EEPROM, can divide a part of program FLASH into data FLASH space according to application needs, and realize EEPROM-like interface access through EEPROM controller , if you use eerom, the total flash is only 30K, which is 2K less than his Atmega328P;

• LGT8F328P integrates more hardware resources and peripherals, including 12-bit ADC, timer3, high-precision 1.024/2.048/4.096V internal reference voltage, 8-bit DAC and high-speed analog comparator, A8(D23), A9(24), A10( 25), A11 (D26) analog input port, D22, REST, crystal oscillator pins can be configured as GPIO ports;

• The LGT8F328P architecture design is relatively new, and the peripheral functions are far stronger than the Atmega328P. Especially the program encryption ability is far more than Atmega328P

technical parameter

Nulllab development board Arduino IDE support package

Method 1, network installation

1. File -> Preferences, get the following interface

2. Enter the following URL in the additional development board manager URL:

https://raw.githubusercontent.com/nulllaborg/arduino_nulllab/master/package_nulllab_boards_index.json

as an Additional Boards Manager URL.

• Open Tools->Board:...->Boards Manager

• Find arduino_nulllaba by typing 'nulllab' into the search line

Arduino Uno is one of the most popular development platforms. Although it is the most widely used among Arduino motherboards, this product is the clone version. 

There are two different versions of the product. In this version, the CH340 IC is used. Another feature is the atmega328 microcontroller with the arduino bootloader installed on this card as SMD. In other clone options, it is possible to remove the microcontroller from the card. However, since this situation increases the cost of the product, the price increases.

Arduino is the most affordable and easy to use model for beginners.

Arduino Uno – R3 SMD model, unlike the original Arduino models, comes with a USB cable as a gift.

R3 is also referred to as REV3. It is the 3rd revision and the most recent revision of the card.

Although there is no difference in working principle, it may require installing a driver for the CH340 IC in order to connect it to your computer on devices under Windows7. Since it is a clone product, it is very advantageous in price.

Features:

• microcontroller ATmega328
• Input Voltage 7-12V
• Number of Digital Pins 14
• Number of PWM Outputs 6
• Number of Analog Inputs 6
• Flash Memory 32k
• Clock Frequency 16MHz

Package Included:

• 1 x Arduino UNO R3 SMD Clone
• 1 x USB cable

The Leonardo R3 Board Micro-USB compatible with Arduino is a micro-controller board base on the ATmega32u4. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs);  a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button.

It contains everything need 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 Leonardo R3 Board differs from all preceding boards in that the ATmega32u4 has built-in USB communication; eliminating the need for a secondary processor.

This allows the Leonardo to appear to a connected computer as a mouse and keyboard; in addition to a virtual (CDC) serial / COM port. It also has other implications for the behavior of the board.

Features :

1. It’s a 100% pro micro Arduino Compatible Board.
2. Chip: ATmega32u4
3. Board Mode: LEONARDO R3
4. Color: As shown in the pictures 

Package Includes :

1 x Leonardo R3 Board

1. Microcontroller: ATmega328p
2. Working voltage: 5v
3. Input voltage(recommended): 7-12v
4. Input voltage(limit): 6-20v
5. Digital input/output pins: 14 pieces (6 of them with pwm output capacity)
6. Pwm digital input/output: 6 pcs
7. Analog input pin: 6 pcs
8. Maximum current to each pin: 20mA
9. 3.3v maximum current: 50mA
10. Flash memory: 32KB(ATmega328p 0.5kb bootloader)
11. Sram: 2KB (ATmega328P)
12. EEPROM: 1KB(ATmega328P)
13. Clock speed: 16MHz
14. Length: 68.6mm
15. Width: 53.4mm
16. Weight: 25g