Manufactured to manage #EmbeddedSystems, a microcontroller is a silicon chip with a fabricated processor, peripherals, and memory. The microcontroller revolution has impacted the advancement in micro-technology magnificently. The size, cost, and utility have enabled the usage of microcontrollers over Single Board and Micro Computers.
Of the available open-source development boards, #Arduino is one of the highly placed boards that meet industrial standards. Despite being distinguished, there persists an unsureness in selecting the right model. This article lists the #top10 Arduino boards of 2021.|different types Arduino boards|
Top Arduino Boards - different types Arduino boards
Arduino Uno
#ArduinoUNO is a convincing 25-gram #AVRmicrocontroller. Uno is a basic model but is an easy choice for beginners. It is pocket-friendly for its versatile functioning. Uno uses the ATmega328P microcontroller. Six of the fourteen general-purpose input/output pins support Pulse Width Modulation. Arduino Uno has a switching regulator to power the board either with USB or using DC voltage between 7V and 12V.
Uno works at 16MHz clock speed and it comes with 1KB EEPROM and 2KB SRAM. The board resets automatically when connected to the computer. In addition, it has a reset button for explicit resetting. It has six ADC converters with 10-bit precision. Uno communicates with other devices with its I2C. Additional communication methods are possible by interfacing Bluetooth or Wi-Fi modules with the board. It is a classic board for newbies.
Arduino Mega 2560
Arduino Mega 2560 is an 8-bit AVR development board solidly built with an ATmega2560 microcontroller. It is a duly opted board for projects with multiple sensors and devices. To enable easy interfacing, it has 54 digital GPIO pins and 16 analog input pins with 10-bit resolution. Arduino Mega works at 16MHz core frequency.
It has a flash memory of 256KB, 4KB EEPROM, and 8KB SRAM. Four UARTs in the Mega board boost the serial communication. The board has dual regulators (5V and 3.3V) for powering externally connected sensors. Mega 2560 is ideal for large-scale projects.
Arduino Pro Mini
Pro Mini is an 8-bit Atmel AVR microcontroller with light-weight functioning. It is atomic in its working and it is used for prototyping small projects and DIYs. It is dimensionally small and can output a maximum power of 0.75 Watt at 5Volts. It is a cost-effective low-power board with 32KB flash memory, 1KB EEPROM, and 2KB SRAM. It comes with 10-bit ADC and 8-bit PWM channels. Pro Mini is a tiny board for a tiny budget.
Arduino Nano RP2040 Connect
Arduino Nano RP2040 Connect is a contemporary, feature-packed premium board. It is an exotic model built with Raspberry Pi’s silicon. It is alike in size to Raspberry Pi Pico and it uses the same RP2040 microcontroller. It is a dynamic board with a #dualcore Arm Cortex M0+ processor. It is unparalleled in its usage in Edge computing, voice assistant, and wearable technology. It is ideal for IoT applications.
Nano RP2040 Connect works at 133MHz clock speed to facilitate parallel processing. It has Wi-Fi and Bluetooth connectivity. For voice assistance, it comes with an in-built microphone. It also has a 6-axis IMU for collecting 3D gyroscope and accelerometer data. As the board is designed for IoT applications, it has embedded cryptography for secure booting. Nano RP2040 Connect is a great buy for featured innovations.
Arduino Nano
Arduino Nano, a mini version of Arduino Uno, is a breadboard-friendly development board. Nano works with the ATmega328 microcontroller. It comes with 2KB SRAM, 1KB EEPROM, 14 digital pins with six channels of PWM, and eight analog pins. It is an elemental board that works at a clock speed of 16MHz. Nano differs from Uno in its power. Due to its small size, it provides a maximum current of 40mA. Nano board has a Mini-B USB port connectivity and a reset button. It supports externally powered Wi-Fi and Bluetooth modules.
Arduino Micro
Arduino Micro board is an economic and feathery microcontroller developed in combination with Adafruit. Micro works with the ATmega32U4 microcontroller and is a stand-in for Teensy 2.0. The board has a 16 MHz clock speed. Arduino Micro comes with 20 digital input/output pins, 12 Analog pins, and 7 PWM channels. It also has a reset button, a micro-USB port and an ICSP header. The flash memory of the board is 32KB. It has 2.5KB SRAM and 1KB EEPROM. Like the Nano board, Micro is a breadboard-friendly microcontroller. Micro board is ideal for creating a DIY keyboard controller or a converter.
Arduino Nano Every
The Nano Every is yet another mini board from Arduino. It uses an ATMega4809 microcontroller. It has fifty percent higher memory than the classic models of Arduino. It computes quicker with its 20MHz oscillator. Nano every has 8 analog pins and 14 digital pins with 5 PWM channels. The microcontroller has a big room for its storage with 28KB flash, 6KB SRAM, and 256Byte EEPROM. It has a soldered Micro-USB port and a reset button. Nano Every is tailor-made for #robotics and wearable technology.
Arduino Leonardo
Arduino Leonardo is ATmega32u4 microcontroller-based development board. It has 12 analog pins and 20 digital input/output pins with 7 PWM channels. Leonardo works with a 16 MHz crystal oscillator and has a resettable fuse to protect the computer. The fuse additionally provides overcurrent and short-circuit protection.
This board comes with a reset button, a micro-USB port, an ICSP header, and a power jack. Arduino Leonardo has 1KB EEPROM, 2.5KB SRAM, and 32KB Flash. Leonardo board is well suited for building USB-human interfacing devices.
Arduino Due
Arduino Due is a 32-bit ARM development board. Due uses AT91SAM3X8E microcontroller. It is large and accommodates 54 digital pins with 12 PWM channels, 12 analog input pins, and 2 analog output pins. The board has an in-built temperature sensor. Due also comes with a Real-Time Clock to internally enable alarm and calendar functions. It works at 84MHz clock speed with a memory of 512KB Flash and 96KB SRAM. The due board can tolerate Electro-magnetic Interference like a charm. So, it is solid gold for creating complex #3Dprinting systems.
Arduino MKR Zero
Arduino MKR Zero is a 3.3V #logiclevel microcontroller. It is a SAMD21 Cortex-M0+ 32bit low power ARM MCU-based microcontroller board. MKR Zero works at a 48MHz core frequency. This microcontroller has 22 digital input/output pins with 12 PWM channels. This board includes 7 analog input pins, 1 analog output pin, UART, I2C, and SPI. MKR Zero has 256KB flash memory and 32KB SRAM. But, MKR Zero does not have EEPROM.
The notable feature of this board is its adaptability with single-cell lithium polymer batteries. It can be powered with LiPo as it has a dedicated onboard LiPo battery handling circuit. The SD card reader adds to the pros of this board. MKR Zero is the right choice for projects that requires standby power.
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Written by-
Name - Madhavan Thothadri
Portfolio Link - https://www.learnelectronicsindia.com/team/madhavan-thothadri
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