DFRobot FireBeetle 2 M0

Dev Board
DFRobot FireBeetle 2 M0

Compact, low-power ARM Cortex-M0+ development board with ATSAMD21G18 MCU, 16MB SPI flash, USB-C, WS2812 RGB LED, and FPC display connector, ideal for IoT and low-power applications.

ARM Cortex-M0+ @ 48MHz, single-core32KB SRAM256KB + 16MB SPI Flash

Adafruit Feather M0 RFM96 LoRa Radio (433 MHz)

Dev Board
Adafruit Feather M0 RFM96 LoRa Radio (433 MHz)

ATSAMD21G18 ARM Cortex-M0+ Feather board with RFM96 LoRa radio at 433 MHz. Spread-spectrum modulation for long-range links, 256KB flash, 32KB RAM, native USB, and built-in LiPo charger.

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KB
~$35View

Adafruit Feather M0 WiFi (ATSAMD21 + ATWINC1500)

Dev Board
Adafruit Feather M0 WiFi (ATSAMD21 + ATWINC1500)

ARM Cortex-M0+ Feather board with ATWINC1500 802.11 b/g/n WiFi, 256KB flash, 32KB RAM, 10 analog inputs, and built-in LiPo charger. FCC-certified WiFi for IoT and connected projects.

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KBWiFi 802.11 b/g/n
~$40View

Adafruit Feather M0 Bluefruit LE

Dev Board
Adafruit Feather M0 Bluefruit LE

ARM Cortex-M0+ dev board with Bluetooth LE (nRF51822) in the compact Feather form factor. Features 256KB flash, 32KB RAM, native USB, and a built-in LiPo charger for wireless wearable and IoT projects

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KBBLE BLE 4.0 (nRF51822)
~$30View

Adafruit Feather M0 WiFi with uFL

Dev Board
Adafruit Feather M0 WiFi with uFL

Variant of the Feather M0 WiFi (ATSAMD21 + ATWINC1500) with a u.FL antenna connector instead of a PCB trace antenna, allowing use of an external antenna for improved WiFi range.

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KBWiFi 802.11 b/g/n
~$35View

Adafruit Feather M0 RFM69HCW 868/915 MHz

Dev Board
Adafruit Feather M0 RFM69HCW 868/915 MHz

ATSAMD21G18 ARM Cortex-M0+ Feather board with RFM69HCW sub-GHz radio at 868/915 MHz. Up to +20 dBm TX power, AES-128 encryption, 256KB flash, 32KB RAM, native USB, and built-in LiPo charger.

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KB
~$25View

Arduino MKR1000

Dev Board
Arduino MKR1000

Compact Arduino board with SAMD21 ARM Cortex-M0+ and ATSAMW25 integrated WiFi (802.11 b/g/n) with cryptochip and SSL support. Built-in LiPo charger, 8 digital I/O, and 7 analog inputs in a slim 65mm f

ATSAMD21G18 ARM Cortex-M0@ 48 MHz32KB SRAM256KBWiFi 802.11 b/g/n
~$45View

Adafruit Feather M0 RFM69HCW 433 MHz

Dev Board
Adafruit Feather M0 RFM69HCW 433 MHz

ATSAMD21G18 ARM Cortex-M0+ Feather board with RFM69HCW sub-GHz radio at 433 MHz. Up to +20 dBm TX power, AES-128 encryption, 256KB flash, 32KB RAM, native USB, and built-in LiPo charger.

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KB
~$25View

Adafruit Feather M0 RFM95 LoRa 900 MHz

Dev Board
Adafruit Feather M0 RFM95 LoRa 900 MHz

ATSAMD21G18 ARM Cortex-M0+ Feather board with RFM95W SX1276 LoRa radio for 868/915 MHz. Achieves 2+ km range, supports LoRaWAN, 256KB flash, 32KB RAM, native USB, and built-in LiPo charger.

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KB
~$35View

Adafruit Feather M0 RFM96 LoRa 433 MHz

Dev Board
Adafruit Feather M0 RFM96 LoRa 433 MHz

ATSAMD21G18 ARM Cortex-M0+ Feather board with RFM96W SX1278 LoRa radio for 433 MHz. Achieves 2+ km range, supports LoRaWAN, 256KB flash, 32KB RAM, native USB, and built-in LiPo charger.

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KB
~$35View

Circuit Playground Express

Dev Board
Circuit Playground Express

All-in-one ATSAMD21 learning board with 10 NeoPixels, LIS3DH accelerometer, MEMS microphone, speaker with class D amp, IR transmit/receive, 7 capacitive touch pads, and 2MB SPI flash for CircuitPython

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KB + 2MB SPI Flash
~$25View

Arduino MKR WiFi 1010

Microcontroller Board
Arduino MKR WiFi 1010

Compact IoT Arduino with SAMD21 Cortex-M0+ @ 48MHz, u-blox NINA-W102 WiFi + Bluetooth module, ATECC508 crypto chip, 256KB Flash, 32KB SRAM, USB full-speed, LiPo charging, and MKR shield compatibility.

ARM Cortex-M0+ @ 48MHz (SAMD21G18)32KB SRAM256KB FlashWiFi 802.11 b/g/n (u-blox NINA-W102)BLE Bluetooth 4.2 + BLE (u-blox NINA-W102)Zigbee falseEthernet false
~$32View

Adafruit Feather M0 Express

Dev Board
Adafruit Feather M0 Express

ATSAMD21G18 ARM Cortex-M0+ Feather board with 2MB SPI flash for CircuitPython code storage, built-in NeoPixel, 256KB flash, 32KB RAM, native USB, and 100mA LiPo charger. The dedicated CircuitPython Fe

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KB + 2MB SPI Flash
~$20View

Adafruit Trinket M0

Dev Board
Adafruit Trinket M0

Ultra-compact ATSAMD21E18 ARM Cortex-M0+ board at 48 MHz with 256KB flash, 32KB RAM, 5 GPIO pins, built-in RGB DotStar LED, capacitive touch, native USB, and CircuitPython support. Weighs just 1.4g in

ATSAMD21E18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KB

Adafruit Feather M0 RFM69HCW Packet Radio (868/915 MHz)

Dev Board
Adafruit Feather M0 RFM69HCW Packet Radio (868/915 MHz)

ATSAMD21G18 ARM Cortex-M0+ Feather board with RFM69HCW sub-GHz radio at 868/915 MHz. Up to +20 dBm TX power, AES-128 encryption, 256KB flash, 32KB RAM, native USB, and built-in LiPo charger.

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KB
~$30View

Adafruit Feather M0 RFM95 LoRa Radio (868/915 MHz)

Dev Board
Adafruit Feather M0 RFM95 LoRa Radio (868/915 MHz)

ATSAMD21G18 ARM Cortex-M0+ Feather board with RFM95 LoRa radio at 868/915 MHz. Spread-spectrum LoRa modulation for multi-kilometre range, 256KB flash, 32KB RAM, native USB, and built-in LiPo charger.

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KB
~$35View

Arduino UNO R4 WiFi

Dev Board
Arduino UNO R4 WiFi

Arduino's flagship UNO board upgraded with Renesas RA4M1 ARM Cortex-M4F at 48MHz, ESP32-S3 WiFi/BLE 5.0, built-in 12×8 LED matrix, 12-bit DAC, CAN bus, op-amp, and Qwiic connector — all in the classic

ARM Cortex-M4F @ 48MHz, FPU, DSP32KB SRAM256KB8KB EEPROMWiFi 802.11 b/g/nBLE BLE 5.0
~$22View

Arduino UNO R4 Minima

Dev Board
Arduino UNO R4 Minima

The affordable entry to Arduino's R4 generation — Renesas RA4M1 ARM Cortex-M4F at 48MHz with 256KB flash, 32KB SRAM, 12-bit DAC, CAN bus, op-amp, and USB-C in the classic UNO form factor at 5V. No wir

ARM Cortex-M4F @ 48MHz, FPU, DSP32KB SRAM256KB8KB EEPROM
~$16View

Arduino Nano R4

Dev Board
Arduino Nano R4

The newest Arduino Nano — Renesas RA4M1 ARM Cortex-M4F at 48MHz with 256KB flash, 32KB SRAM, Qwiic connector, RGB LED, castellated pins, and USB-C in an ultra-compact 43×17mm form factor. No wireless,

ARM Cortex-M4F @ 48MHz, FPU, DSP32KB SRAM256KB8KB EEPROM
~$12View

Arduino MKR WAN 1310

Dev Board
Arduino MKR WAN 1310

LoRa-enabled IoT board with SAMD21 ARM Cortex-M0+ at 48MHz, Murata CMWX1ZZABZ LoRa module, ECC508 crypto chip, 2MB SPI flash, onboard LiPo charger, and 104\u00b5A low-power mode — designed for long-ra

ARM Cortex-M0@ 48MHz (SAMD21)32KB SRAM256KB2MB SPI Flash
~$45View

Get notified when new devices are added.

More to explore — popular traits shared by devices with RAM: 32KB SRAM.