Adafruit Feather 32u4 RFM69HCW Packet Radio - 868 or 915 MHz
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.
This 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.
Key Features
- ATmega32u4 @ 8 MHz – 3.3V logic, 32KB flash, 2KB RAM
- Native USB – Built-in USB bootloader, serial debugging, and HID device support
- RFM69HCW Radio (SX1231) – 868/915 MHz packet radio with SPI interface
- +13 to +20 dBm Output – Up to 100 mW selectable in software
- AES-128 Encryption – Built-in encrypted packet engine
- ~350 m Range – Depending on obstructions, frequency, antenna, and power output
- Multipoint Networking – Individual node addressing for creating networks
- 50–150 mA TX Current – Depending on power output setting (+13 to +20 dBm)
- 20 GPIO Pins – Including 10 analogue inputs and 7 PWM outputs
- Hardware Serial, I2C & SPI – Full peripheral support
- Built-in LiPo Charger – 100 mA charging with status indicator LED
- Battery Monitoring – Battery voltage routed to an analogue pin via divider
- 3.3V Regulator – 500 mA peak current output
Specifications
- Dimensions – 51 × 23 × 8 mm (without headers)
- Weight – 5.5 g
- Frequency – 868 or 915 MHz (ISM band, software-selectable)
- Mounting – 4 mounting holes
Also Available
- Feather 32u4 RFM95 LoRa Radio (868/915 MHz) – Much longer range with LoRa modulation
- Feather 32u4 RFM96 LoRa Radio (433 MHz)
- Feather 32u4 Bluefruit LE – With Bluetooth Low Energy
- Feather 32u4 Adalogger – With MicroSD card holder
- Feather 32u4 Basic Proto – With prototyping area
Ideal For
- Wireless sensor networks with sub-GHz radio
- Remote control and telemetry systems
- Point-to-point and multipoint packet radio links
- Encrypted wireless communication
Package Contents
- 1× Assembled and tested Feather 32u4 RFM69HCW
- 1× Header set
Product Information
Product Information
Shipping & Returns
Shipping & Returns
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.
This 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.
Key Features
- ATmega32u4 @ 8 MHz – 3.3V logic, 32KB flash, 2KB RAM
- Native USB – Built-in USB bootloader, serial debugging, and HID device support
- RFM69HCW Radio (SX1231) – 868/915 MHz packet radio with SPI interface
- +13 to +20 dBm Output – Up to 100 mW selectable in software
- AES-128 Encryption – Built-in encrypted packet engine
- ~350 m Range – Depending on obstructions, frequency, antenna, and power output
- Multipoint Networking – Individual node addressing for creating networks
- 50–150 mA TX Current – Depending on power output setting (+13 to +20 dBm)
- 20 GPIO Pins – Including 10 analogue inputs and 7 PWM outputs
- Hardware Serial, I2C & SPI – Full peripheral support
- Built-in LiPo Charger – 100 mA charging with status indicator LED
- Battery Monitoring – Battery voltage routed to an analogue pin via divider
- 3.3V Regulator – 500 mA peak current output
Specifications
- Dimensions – 51 × 23 × 8 mm (without headers)
- Weight – 5.5 g
- Frequency – 868 or 915 MHz (ISM band, software-selectable)
- Mounting – 4 mounting holes
Also Available
- Feather 32u4 RFM95 LoRa Radio (868/915 MHz) – Much longer range with LoRa modulation
- Feather 32u4 RFM96 LoRa Radio (433 MHz)
- Feather 32u4 Bluefruit LE – With Bluetooth Low Energy
- Feather 32u4 Adalogger – With MicroSD card holder
- Feather 32u4 Basic Proto – With prototyping area
Ideal For
- Wireless sensor networks with sub-GHz radio
- Remote control and telemetry systems
- Point-to-point and multipoint packet radio links
- Encrypted wireless communication
Package Contents
- 1× Assembled and tested Feather 32u4 RFM69HCW
- 1× Header set
