Adafruit Feather M0 WiFi - ATSAMD21 + ATWINC1500

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). Adafruit 2796

The board with the RP2040 microcontroller equipped with two ARM Cortex-M0+ cores, which work at a frequency of 133 MHz, 256 kB RAM. The board also has 8 MB of QSPI flash memory. The system can be programmed in C/C++ or MicroPython. Adafruit 4884

Adafruit Feather M0 WiFi with uFL - 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 3061

At the Feather 32u4\'s heart is ATmega32u4 clocked at 8 MHz and at 3.3V logic. This chip has 32K of flash and 2K of RAM, with built in USB so not only does it have a USB-to-Serial program & debug capability built in with no need for an FTDI-like chip, it can also act like a mouse, keyboard, USB MIDI device, etc. Adafruit 2795

Adafruit HUZZAH32 is a development board with a built-in WiFi ESP32 module. Processor frequency: 240 MHz, Li-Pol battery charging system. Adafruit 3405

Module with ATmega32u4 microcontroller and 900 MHz wireless transceiver. The module can be used for transmission in the ISM 868 MHz band after the appropriate software configuration. The microcontroller is clocked at 8 MHz and works at 3.3 V. Adafruit 3076

Adafruit Feather HUZZAH ESP8266 is a new development board from Adafruit with a built-in WiFi module ESP8266. Processor frequency: 80 MHz, USB-serial TTL CP2104 converter, Li-Pol battery charger. Adafruit 2821

Adafruit HUZZAH32 is a development board with a built-in WiFi ESP32 module. Processor frequency: 240 MHz, Li-Pol battery charging system. The board has soldered goldpin connectors. Adafruit 3591

Low-power, 2.4GHz spectrum wireless protocol that you can use with iOS without needing special certification. Supported by all modern smart phones - excellent for use in portable projects that will make use of an iOS or Android phone or tablet; it also is supported in Mac OS X and Windows 8+. Adafruit 2995

Board with RP2040 microcontroller and HDMI video connector. Has a built-in LiPo charging circuit and STEMMA QT connector. Allows the use of the Feather module to display data on a monitor. Adafruit 5710

The board is equipped with a STM32F405 microcontroller with an ARM Cortex-M4 core and SPI Flash memory, GPIO pins, a connector for connecting a battery with a charging circuit and a STEMMA QT socket. Adafruit 4382

Module with ATSAMD21G18 microcontroller and 900 MHz wireless transceiver. The module can be used for transmission in the ISM 868 MHz band after the appropriate software configuration. The ATSAMD21G18 microcontroller (ARM Cortex-M0) is clocked at 48 MHz and operates at 3.3 V. Adafruit 3176

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

At the Feather M0\'s heart is an ATSAMD21G18 ARM Cortex M0 processor, clocked at 48 MHz and at 3.3V logic. 256K FLASH, 32K RAM, built in USB and battery charging. Adafruit 2772

This compact IoT board features a dual-core 240 MHz processor, 2.4 GHz WiFi, and Bluetooth LE. The w.FL antenna connector allows for an external antenna, increasing range and stability. The board offers 8 MB of Flash, 512 KB of SRAM, native USB with HID and MIDI support, and a built-in LiPo charger with a MAX17048 battery monitor. It also includes a STEMMA QT connector, a programmable NeoPixel, and full compatibility with the Feather ecosystem. The Adafruit 5885

Development board with a 32-bit ATSAMD21G18 microcontroller based on Cortex-M0 core. The module also has an RFM69HCW chip that allows wireless communication in the 433 MHz band. Adafruit 3177