2.5KB SRAM

Ultra-compact Arduino Leonardo-compatible microcontroller board with ATmega32U4, integrated lithium battery charging, and native USB in a tiny 22x20.5mm form factor.

The original coin-sized Arduino Leonardo-compatible board with ATmega32U4, native USB, 10 digital and 5 analog pins, and sewable gold-plated pads in a 20x22mm form factor.

Ethernet-controlled dual-relay board with ATmega32u4, WIZnet W5100 Ethernet, XBee socket, and two 10A relays for remote switching of AC/DC loads via web or MQTT, ideal for home automation.

All-in-one ATmega32u4 learning board with 10 NeoPixels, LIS3DH accelerometer, microphone, speaker, light and temperature sensors, and 8 capacitive touch pads in a circular 2-inch form factor.

ATmega32u4 Feather board with RFM69HCW sub-GHz radio supporting 868/915 MHz with up to +20 dBm transmit power, AES-128 encryption, and 100mA LiPo charger for long-range IoT sensor networks.

ATmega32u4 Feather board with RFM69HCW sub-GHz radio at 433 MHz with up to +20 dBm transmit power, AES-128 encryption, and built-in LiPo charger for long-range sensor networks in the 433 MHz ISM band.

ATmega32u4 Feather board with RFM95W SX1276 LoRa radio for 868/915 MHz long-range communication. Achieves 2+ km range, supports spreading factors SF6-SF12, and includes a built-in LiPo charger.

ATmega32u4 Feather board with RFM96W SX1278 LoRa radio for 433 MHz long-range communication. Achieves 2+ km range with quarter-wave antennas, supports LoRaWAN, and includes a built-in LiPo charger.