Arduino Zero - ABX00003

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

The A-Star 32U4 Mini LV is a programmable module based on the ATmega32U4 from Atmel. Unlike competing products, it has an onboard switching step-up/step-down regulator that allows it to be powered efficiently from a 2.7 V to 11.8 V supply. Pololu 3103

Module with the ATMega4809 microcontroller from the AVR family (48 KB Flash, 6 KB SRAM, 256 B EEPROM). The module has two 15-pin connectors equipped with GPIO, SPI, I2C, PWM, USART, DAC and ADC. Arduino ABX00028

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 Pololu A-Star 32U4 Prime is a general-purpose programmable board based on Atmel’s ATmega32U4 AVR microcontroller and arranged in the common Arduino form factor exemplified by the Uno R3 and Leonardo. Pololu 3114

Arduino Micro Development Board

Pro Micro is similar to Pro Mini Arduino compatible board, main difference is that Pro Micro uses ATmega32u4 with builtin USB connectivity. Sparkfun DEV – 12587

A small module, matching the breadboard, containing a 32-bit microcontroller with ARM Cortex M7 core. PJRC TEENSY40

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

Module with dual-core STM32H747XI microcontroller with CortexM7+M4 core equipped with 2 MB flash memory, 1 kB RAM and clock speeds up to 480 MHz. The board has a built-in WiFi module and Bluetooth 5.1 (Murata 1DX). Arduino ABX00042

The Arduino Uno SMD R3 is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller. Arduino A000073

Discover the latest revision of Arduino Uno - the most popular development kit in the world. The Arduino Uno in its newest iteration impresses with a three-fold increase in clock speed, eight-fold larger flash capacity, and a sixteen-fold increase in SRAM capacity. But that\'s just the beginning, as Arduino Uno also offers a wide range of additional peripherals, powered by a 32-bit Renessas RA4M1 microcontroller with an ARM M4 core. With the new Arduino Uno, you don\'t have to worry about compatibility, as the board is compatible with all shields from previous revisions. Thanks to the elaborate security systems and compatibility with existing guides and projects, Arduino Uno becomes the ideal solution for both beginners and advanced electronics enthusiasts. Arduino ABX00080

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

Development board based on the R7FA4M1AB3CFM microcontroller and compatible with Arduino UNO R4 Minima. Waveshare R7FA4 PLUS A

Adafruit Circuit Playground Classic is a comprehensive educational platform featuring the ATmega32u4 microcontroller, designed for learning electronics and programming without the need for additional hardware. Integrated sensors, interactive components, and support for the Arduino IDE and code.org enable rapid prototyping and the creation of creative interactive projects. It is especially useful in education, workshops, and as a first step into the world of microcontrollers.

Development board with ATmega328P microcontroller compatible with Arduino Uno Rev3. Waveshare R3 PLUS