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

Development kit with XBee3 Micro radio module. Provides plug and play 802.15.4 2.4 GHz wireless connection (Zigbee 3.0 protocol). SparkFun WRL-15454

Adafruit HUZZAH32 is a development board with a built-in WiFi ESP32 module. Processor frequency: 240 MHz, the module has a built-in system for charging Li-Pol batteries. The plate has soldered goldpin connectors (female extension). Adafruit 3619

Development kit with nRF52832 microcontroller with ARM Cortex M4F core. Equipped with 512KB Flash and 64KB SRAM, it can support Bluetooth (BLE) communication. Adafruit 3406

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

Extension module dedicated to matrix displays with HUB75 interface. Designed for Feather RP2040, M0 and M4 series tiles. Adafruit 3036

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

Module with WiFi and Bluetooth Espressif ESP32 WROOM. It integrates a set of peripheral devices - capacitive touch sensors, Hall sensors, SD card interface, Ethernet, fast SPI, UART, I2S and I2C. SparkFun WRL-15663

Development kit with ATSAMD51J20 microcontroller with ARM Cortex M4F core. It is clocked at 120 MHz, has 1 MB of Flash and 256 KB of SRAM. There are 6 SERCOM interfaces on the board. SparkFun DEV-14713

Development kit with XBee3 Micro radio module. Provides plug and play 802.15.4 2.4 GHz wireless connection (Zigbee 3.0 protocol). SparkFun WRL-15435

Advanced IoT platform, equipped with ESP32 WROOM-S3 MINI module, supporting WiFi and Bluetooth, with 4MB Flash and 2MB PSRAM, and a microSD card slot. It offers 21 GPIO pins, support for UART, I2C and SPI interfaces, built-in USB Type-C connector and the ability to charge LiPo batteries, making it a versatile tool for developing projects. SparkFun WRL-24408

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

Feather board will let you integrate packetized radio (with the RFM69 radio) or LoRa radio (with the RFM9x\'s). These radios are good options for kilometer-range radio, and paired with one of our WiFi, cellular or Bluetooth Feathers, will let you bridge from 433/900MHz to the Internet or your mobile device. Adafruit 3230

Module with monostable relay. It allows you to control high-power elements with a microcontroller. Adafruit 3191

OLED display with a diagonal of 1.3" and a resolution of 128x64 pixels. Designed for use with Feather series plates. Adafruit 4650

Development board in Feather format equipped with AW-CU488. The module has an integrated WiFi wireless communication controller, LiPo charging circuit and Qwiic connector. SparkFun DEV-19957

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

Development board with LoRa Semtech SX1262 module and Apollo 3 Bluetooth 5 integrated in the NM180100 chip. It supports the 868 MHz and 915 MHz bands and Bluetooth Low Energy. It is compatible with the Qwicc system. SparkFun 17506

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

DS3231 Precision RTC FeatherWing adds an extremely accurate I2C-integrated Real Time Clock (RTC) with a Temperature Compensated Crystal Oscillator (TCXO) to any Feather main board. Adafruit 3028