A-Star 32U4 Mini SV – Atmega32u4 module – Pololu 3145
A-Star 32U4 Robot Controller SV 36V/1.7A – extension to Raspberry Pi – Pololu 3119
A4990 – two-channel motor driver 32V/0,7A – Pololu 2137
A4990 2-channel motor driver 32V/0,65 A – Shield for Arduino – Pololu 2512
AC/DC voltage tester 12V – 250V
Adafruit ATtiny817 seesaw – STEMMA QT / Qwiic – Arduino compatible – Adafruit 5233
Board based on ATtiny817 chip clocked at 20 MHz with 8 kB of flash memory and 512 B of RAM. It is also a seesaw Adafruit module, an I2C converter that allows you to extend another microcontroller module or minicomputer with additional interfaces over the I2C line. There are also two Qwiic / STEMMA QT connectors on the board for easy connection to a board with the same connector with I2C interface.
Adafruit Cyberdeck HAT – GPIO adapter for Raspberry Pi 400 – Adafruit 4863
The Cyberdeck board from Adafruit is equipped with two 40-pin connectors , one straight and one angled , which are used to lead the pins out of the Raspberry Pi 400 minicomputer at a slight angle, thus facilitating access to them. As standard, in the Raspberry Pi 400, access to the GPIO is difficult due to their location in the keyboard at an angle of 90 °. This solution allows you to place on the board, for example, LCD screens mounted directly on the GPIO of the Raspberry Pi with a diagonal of up to 4.0 ".
Adafruit Feather RP2040 – board with RP2040 microcontroller
STM32 Nucleo module with 32-bit STM32G491RE microcontroller equipped with Arm Cortex-M4 core clocked at 170 MHz, 512 kB of Flash memory and 16 kB of SRAM. As the board belongs to Nucleo-64 family, it is compatible with mbed platform, has connectors to connect Arduino Uno adapted overlays and has ST morpho pins which give access to all GPIO pins of the microcontroller.
Adafruit KB2040 Kee Boar Driver – board with RP2040 microcontroller – Adafruit 5302
Adafruit Kee Boar Driver is a board based on RP2040 microcontroller. The chip has two ARM Cortex M0+ cores running at up to 133 MHz, 264 kB of RAM (no EEPROM) and an 8 MB SPI FLASH chip for storing CircuitPython / MicroPython files and code. Additionally, it allows external memory up to 16 MB to be connected via a dedicated QSPI bus. The small size board has 20 GPIO pins (Including two on the QT port), a STEMMA QT connector, and a USB Type C socket.
Adafruit Music Maker – MP3 OGG WAV MIDI synthesizer player – Feather – Adafruit 3357
Overlay for Raspberry Pi made by Pimoroni company. On the board there are 119 RGB LEDs in the form of 17 x 7 matrix . Thanks to the HT16D35A chip it is possible to control the color and brightness of each LED separately, which allows to create amazing lighting effects. On the board there are also four tact-switch buttons for individual use by the user.
Adafruit Neo Trinkey – SAMD21 USB Key with 4 NeoPixels – Adafruit 4870
The Adafruit Neo Trinkey module is half USB and Adafruit Trinket. The board is equipped with four RGB NeoPixel LEDs. The Adafruit Trinkey is based on the ATSAMD21 chip. Four LEDs are operated by one pin of the microcontroller. Two other pins are used for touch buttons, which were placed on the left and right edge of the board, they are used to adjust the light intensity. The reset button allows the module to enter bootloader mode.