Metro M7 with AirLift - board with NXP iMX RT1011 microcontroller

DFRduino Nano V3.1 is a base plate compatible with Arduino Nano. The board has an ATmega 328-20AU microcontroller. The user has 14 GPIO ports (inputs / outputs), of which 6 can generate PWM signal. DFRobot DFR0010

Development kit with ATSAMD51J20 microcontroller with ARM Cortex M4F core. It is clocked at 120 MHz, has 1 MB of Flash and 256 KB of SRAM. There are 6 SERCOM interfaces on the board. SparkFun DEV-14713

Board with ATmega1280 microcontroller from the AVR family, the user has 54 I/O lines, 14 PWM channels, 16 analog inputs. DFRobot DFR0003

Development board equipped with ATSAMD21G18 microcontroller. It has 30 I/O lines, including SERCOM interfaces and 14 analog inputs. Compatible with Arduino. SparkFun DEV-13672

Development board with ATmega328P microcontroller equipped with 14 I/O lines, 6 PWM channels, 6 analog inputs and FT231X chip. Compatible with Arduino UNO Rev3. Cytron CT-UNO-SE

Microcontroller board based on the ATmega328

Small development kit with ATmega32u4 microcontroller. The board has 6 power, 6 analog and 17 digital pins, which makes it have similar capabilities to the Arduino UNO. Compatible with Arduino. Adafruit 3677

Based on the versatile ATmega328, the Metro Mini packs 32KB Flash, 2KB RAM, a clock speed 16Mhz and the Optiboot bootloader. The slick black and gold unit includes 20 GPIO pins. Adafruit 2488 

Tiny (18 x 44 mm) breadboard-friendly development board, easy to use, hacker friendly. ATmega328 brains32KB of flash (1/2 K is reserved for the bootloader), 2KB of RAM, clocked at 16MHz. Adafruit 2590

Board with the ATmega328 microcontroller from the AVR family, there are 20 I/O lines, 6 PWM channels, 6 analog inputs at the user\'s disposal. SparkFun DEV-15123

This board combines the simplicity of the UNO’s Optiboot bootloader (which is used in the Pro series), the stability of the FTDI (which we all missed after the Duemilanove was discontinued) and the R3 shield compatibility of the latest Arduino UNO R3.  SparkFun DEV-13975

Beetle is a extremely the smallest Arduino leonardo board with Atmel AtMega32u4. 16MHz clock time and has expanded amounts of interfaces: 10 digital pins, 5 analog pins and 4 pwn pins. DFR0282

Dreamer Nano V4 - Arduino Leonardo compatible; ATmega 32U4

Evaluation kit with Bluetooth 4.0 module. It has 8 digital pins, 4 analog pins and 4 PWM. Compatible with Arduino, it is perfect as a platform for building a small robot. DFRobot DFR0351

Evaluation kit with Bluetooth 5.0 Sparkfun Artemis module. Equipped with a microphone, kmaers and accelerometer. SparkFun DEV-16828

Development board with ATmega4809 microcontroller and Microchip ECC608 cryptographic chip. It is equipped with 6 analog input pins, 14 digital inputs/outputs (5 as PWM output) and Grove ports. Seeed Studio 102010288