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 SAMD21G18 microcontroller. It offers operating frequency up to 48 MHz, 256kB FLASH memory and 32kB SRAM.

The board is equipped with ATSAMD21 microcontroller with ARM Cortex-M0 core. It has connectors and dimensions compatible with the Arduino Uno Rev3. HW-819

JTAG/SWD Emulator for ARM7/9, Cortex and Renesas RX cores with USB interface, Segger

The Wio Helium Monitor is a plug-and-play LongFi hotspot monitor for the Helium network. It allows you to determine whether a device is connected to the local area network (LAN) and whether it has access to the Internet. With Grove-Wio-E5 and an activated Watchium Silver/Gold subscription, you can also check that LoRaWAN communication with the hotspot (including Witness) is working correctly. Seeed Studio 114992990

Development kit with ATSAMD21E microcontroller with ARM Cortex M0+ core. The chip can be clocked at 48 MHz, has a built-in 256 KB of Flash memory and 32 KB of SRAM. The module has a Qwiic connector. SparkFun DEV-15423

Development kit with SAMD21G18A microcontroller with ARM Cortex M0+ core and LoRa RFM95W radio communication module. SparkFun WRL-15836

The board is equipped with the ATSAMD51J19 microcontroller with ARM Cortex-M4 core and SPI Flash memory, GPIO pins, connector for connecting the battery with the charging circuit. Adafruit 3857

Evaluation board with ATSAMD21E18 microcontroller (Cortex M0 +, 48 MHz, 256 KB Flash and 32 KB RAM). Equipped with a STEMMA QT connector. Adafruit 4600

JTAG/SWD debug probe with USB interface. Based on a 32-bit RISC CPU, it can communicate at high speed with the supported target CPUs. J-Link is used around the world in tens of thousand places for development and production (flash programming) purposes. J-link PLUS Compact (8.19.28)

Evaluation board with ATSAMD21 microcontroller with ARM Cortex M0 core. Equipped with motion, temperature, light, sound sensors and RGB diodes. Can be programmed in MakeCode, CircuitPython, Arduino IDE or CS Discoveries. Adafruit 3333

The board is equipped with ATSAMD21 microcontroller with ARM Cortex-M0 core and SPI Flash memory, GPIO pins and RGB diode. Adafruit 3505

Atmel AT91SAM7L-STK Starter Kit

LoRaWan and LongFi network monitor. It allows you to specify the number of hotspots to extend the actual network coverage. Seeed Studio 114992777

JTAG / SWD programmer-debugger with USB and WiFi interface. It supports microcontrollers and microprocessors with Cortex-M, Cortex-A, Cortex-R and ARM7, ARM9 and ARM11 cores of most manufacturers as well as 8051, RISC-V, PIC32, RX. Segger J-Link WiFi (8.14.28)

Adafruit Feather M0 WiFi - ATSAMD21 + ATWINC1500 is a development board with a 32-bit ATSAMD21G18 microcontroller based on Cortex-M0 core. The board also has an ATWINC1500 module that provides WiFi connectivity. Adafruit 3010

Development kit with ATSAMD21G18 microcontroller and USB connector. It provides two Qwiic connectors and a programmable WS2812 LED. Perfect solution for people who want to quickly and easily connect a Qwiic device to a computer. SparkFun SPX-24639 

MYD-SAM9X35 Development Board, MYIR