{"title":"Adafruit Feather 32u4 RFM69HCW Packet Radio - 868 or 915 MHz","handle":"adafruit-feather-32u4-rfm69hcw-packet-radio-868-or-915-mhz","url":"/products/adafruit-feather-32u4-rfm69hcw-packet-radio-868-or-915-mhz","description":"The Feather 32u4 RFM69HCW Packet Radio (868/915 MHz) combines an ATmega32u4 microcontroller with an SX1231-based packet radio transceiver, USB connectivity, and LiPo battery charging. It offers longer range than 2.4 GHz protocols (Bluetooth, Wi-Fi, ZigBee) with more flexibility than BLE, making it ideal for wireless sensor networks and remote control applications.\n\nThis is the 900 MHz version, which can be software-tuned for either 868 MHz or 915 MHz operation in the license-free ISM bands. A simple wire antenna or uFL connector can be used.\n\nKey Features\n\n\nATmega32u4 @ 8 MHz – 3.3V logic, 32KB flash, 2KB RAM\n\nNative USB – Built-in USB bootloader, serial debugging, and HID device support\n\nRFM69HCW Radio (SX1231) – 868/915 MHz packet radio with SPI interface\n\n+13 to +20 dBm Output – Up to 100 mW selectable in software\n\nAES-128 Encryption – Built-in encrypted packet engine\n\n~350 m Range – Depending on obstructions, frequency, antenna, and power output\n\nMultipoint Networking – Individual node addressing for creating networks\n\n50–150 mA TX Current – Depending on power output setting (+13 to +20 dBm)\n\n20 GPIO Pins – Including 10 analogue inputs and 7 PWM outputs\n\nHardware Serial, I2C & SPI – Full peripheral support\n\nBuilt-in LiPo Charger – 100 mA charging with status indicator LED\n\nBattery Monitoring – Battery voltage routed to an analogue pin via divider\n\n3.3V Regulator – 500 mA peak current output\n\n\nSpecifications\n\n\nDimensions – 51 × 23 × 8 mm (without headers)\n\nWeight – 5.5 g\n\nFrequency – 868 or 915 MHz (ISM band, software-selectable)\n\nMounting – 4 mounting holes\n\n\nAlso Available\n\n\nFeather 32u4 RFM95 LoRa Radio (868/915 MHz) – Much longer range with LoRa modulation\nFeather 32u4 RFM96 LoRa Radio (433 MHz)\n\nFeather 32u4 Bluefruit LE – With Bluetooth Low Energy\n\nFeather 32u4 Adalogger – With MicroSD card holder\n\nFeather 32u4 Basic Proto – With prototyping area\n\n\nIdeal For\n\nWireless sensor networks with sub-GHz radio\nRemote control and telemetry systems\nPoint-to-point and multipoint packet radio links\nEncrypted wireless communication\n\n\nPackage Contents\n\n1× Assembled and tested Feather 32u4 RFM69HCW\n1× Header set\n\n\n\nNote: A wire antenna must be soldered on (included wire is fine). LiPo battery and USB cable are sold separately.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11358,"title":"Default Title","sku":"AF-3076","price":48.68,"on_sale":false,"in_stock":true,"available_quantity":51,"option1":"Default Title"}]}