Base board compatible with Arduino. It was equipped with an ATmega328P microcontroller. It has 22 I / O lines (including 6 PWM channels) and 8 analog inputs and a Qwiic connector. SparkFun DEV-18158

Board compatible with Arduino, based on ATmega328P. Equipped with an area with prototype holes, a breadboard, 12 LEDs, a button and a buzzer. Cytron MAKER-UNO-X

Base board compatible with Arduino. Equipped with the ATmega2560 microcontroller. It has a built-in Bluetooth BLE module (TI CC2540). DFRobot DFR0323

The A-Star 32U4 Mini ULV is a programmable module based on the ATmega32U4 from Atmel. Unlike competing products, it has an onboard switching step-up regulator that allows it to be powered efficiently from a 0.5 V to 5.5 V supply. Pololu 3102

IoT development board the size of Arduino, equipped with an ARM Cortex-M3 processor (STM32F205) and a Wi-Fi communication module (with an integrated antenna and uFL connector). SparkFun DEV-13321

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

The Fio v3 is a new spin on the Arduino Fio hardware powered by the ATmega32U4. Not only is it small and LiPo-ready, it’s a very capable XBee-ready development board. DEV-11520

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

IoT development board with ATmega32U4 microcontroller and W5500 Ethernet chip. Compatible with Arduino Leonardo, has a built-in PoE (Power over Ethernet) function. DFRobot DFR0342

DEV-13342

The SparkFun AST-CAN485 board is a miniature Arduino in a compact Pro Mini housing with a built-in CAN (Control Area Network) and RS485 ports. Sparkfun DEV-14483

The board is equipped with ATSAMD51 microcontroller with ARM Cortex-M4 core and SPI Flash memory, communication interfaces and RGB diode. Adafruit 3382

Base board compatible with Arduino. It was equipped with an Atmega 328P microcontroller. It has 14 I/O lines (including 6 PWM channels) and 6 analog inputs. SparkFun DEV-14525

Development board based on the R7FA4M1AB3CFM microcontroller and compatible with Arduino UNO R4 WiFi. It is equipped with ESP32-S3FN8 with a dual-core 32-bit Xtensa LX7 core and wireless communication in the 2.4GHz WiFi band and Bluetooth LE. Waveshare R7FA4 PLUS B

A circuit board compatible with Arduino with Atmega32U4 microcontroller and step-up / step-down converter. Version without soldered through elements. Polol 4005

All-in-one microcontroller especially designed for robotics application. Benefit from Arduino open source platform, it is supported by thousands of open source codes, and can be easily expanded with most Arduino Shields. The integrated 2 way DC motor driver and wireless socket gives a much easier way to start your robotic project. DFR0004

Microcontroller board based on Leaf Maple, STM32F103RB, USB, RoHS

A circuit board compatible with Arduino Leonardo equipped with Atmega32U4 microcontroller, SD card reader and step-up / step-down converter. Version without soldered through elements. Polol 4006

A circuit board compatible with Arduino Leonardo equipped with Atmega32U4 microcontroller and step-up / step-down converter. Polol 4007

At the Feather M0\'s heart is an ATSAMD21G18 ARM Cortex M0 processor, clocked at 48 MHz and at 3.3V logic, the same one used in the new Arduino Zero. This chip has a whopping 256K of FLASH (8x more than the Atmega328 or 32u4) and 32K of RAM (16x as much)! This chip comes with built in USB so it has USB-to-Serial program & debug capability built in with no need for an FTDI-like chip. Adafruit 3179