WiDo - board with ATmega32U4 and WG13000 WiFi module

A circuit board compatible with Arduino Leonardo equipped with an Atmega32U4 microcontroller, an SD card reader, a text display 8x2 characters and a step-up / step-down converter. Polol 4009

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

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

GEMMA M0 is an intelligent clothing controller from Adafruit. In relation to the classic GEMMA board, it was equipped with a 32-bit ATSAMD21E18 microcontroller (based on Cortex M0 +). It has GPIO pins, RGB DotStar diode. The board can be powered by a 3.7 V Li-Ion battery (JST connector). Adafruit 3501

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

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

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 3107

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

Development board with AVR ATmega328 microcontroller with a clock signal of 16 MHz. Compatible with Arduino, it is equipped with a STEMMA QT connector. Adafruit 5597

The board is compatible with Arduino, based on the ATmega328P microcontroller from the AVR family, 14 I/O lines, 6 PWM channels, 6 analog inputs are available to the user. The CH340G chip communicates via a USB interface. In addition, it has 12 LEDs, a programmable button and a embedded buzzer. Cytron Uno Maker

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

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.

Module with ATmega328 microcontroller from the AVR family (32 kB Flash, 2 kB SRAM, 1 kB EEPROM). The module has 14 I/O lines, 6 PWM channels, 8 analog inputs

Adafruit 1222

SparkFun BlackBoard is a base plate compatible with Arduino. It is equipped with Atmega 328P microcontroller. It has 14 I / O lines (including 6 PWM channels) and 6 analogue inputs. It has a connector in accordance with the Qwiic standard. SparkFun SPX-14669

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