Adafruit Feather 32u4 RFM69HCW Packet Radio - 868/915 MHz

Feather board combining ATmega32u4 with an RFM69HCW 900 MHz packet radio transceiver. Includes USB and LiPo charging. Suited for license-free ISM-band point-to-point or mesh sensor networks.
Pinout
2 grouped source records are expanded into separate logical pads where unambiguous; physical placement is not implied.
- GNDpower pinsType · Ground
- BATBATType · Power
- USBUSBType · USB
- ENENType · Control
- 3V3VType · Power
- #0RX#0Type · UART, Signal
- #1TX#1Type · UART, Signal
- #2SDA#2Type · I2C, Signal
- #3SCL#3Type · I2C, Signal
- #5#5Type · Signal
- #6A7#6Type · Analog, Signal
- #9A9#9Type · Analog, Signal
- #10A10#10Type · Analog, Signal
- #11#11Type · Signal
- #12A11#12Type · Analog, Signal
- #13#13Type · Signal
- A0 thru A5A0-A5Type · Signal
- SCKMOSIMISOSPIType · SPI
- #8RFM internalType · Signal
- #7RFM internalType · Signal
- #4RFM internalType · Signal
- IO2RFM IO1IO3RFM GPIO breakoutsType · GPIO, Signal
- RSTRSTType · Control
- ARefARefType · Analog
| Pin | Position | Type |
|---|---|---|
| GND | power pins | Ground |
| BAT | BAT | Power |
| USB | USB | USB |
| EN | EN | Control |
| 3V | 3V | Power |
| #0RX | #0 | UART, Signal |
| #1TX | #1 | UART, Signal |
| #2SDA | #2 | I2C, Signal |
| #3SCL | #3 | I2C, Signal |
| #5 | #5 | Signal |
| #6A7 | #6 | Analog, Signal |
| #9A9 | #9 | Analog, Signal |
| #10A10 | #10 | Analog, Signal |
| #11 | #11 | Signal |
| #12A11 | #12 | Analog, Signal |
| #13 | #13 | Signal |
| A0 thru A5 | A0-A5 | Signal |
| SCKMOSIMISO | SPI | SPI |
| #8 | RFM internal | Signal |
| #7 | RFM internal | Signal |
| #4 | RFM internal | Signal |
| IO2RFM IO1IO3 | RFM GPIO breakouts | GPIO, Signal |
| RST | RST | Control |
| ARef | ARef | Analog |
2 grouped source records are expanded into separate logical pads where unambiguous; physical placement is not implied.
Pin details
24 connections- GNDpower pinsGround
- BATBATPower
- USBUSBUSB
- ENENControl
- 3V3VPower
- #0RX#0UART, Signal
- #1TX#1UART, Signal
- #2SDA#2I2C, Signal
- #3SCL#3I2C, Signal
- #5#5Signal
- #6A7#6Analog, Signal
- #9A9#9Analog, Signal
- #10A10#10Analog, Signal
- #11#11Signal
- #12A11#12Analog, Signal
- #13#13Signal
- A0 thru A5A0-A5Signal
- SCKMOSIMISOSPISPI
- #8RFM internalSignal
- #7RFM internalSignal
- #4RFM internalSignal
- IO2RFM IO1IO3RFM GPIO breakoutsGPIO, Signal
- RSTRSTControl
- ARefARefAnalog
Start wiring
USB · 3.3 V
Confirm the data interface matches your host board.
Module pins: BAT, USB, 3V, GND, #0 / RX, #1 / TX, #2 / SDA, #3 / SCL. Schematik maps them to your board in the app.
Other MCUs
228 other optionsSpecialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.
:MOVE mini MK2 buggy kit visual preview:MOVE mini MK2 buggy kit
16-Ch Servo Driver Breakout for micro:bit, I2C visual preview16-Ch Servo Driver Breakout for micro:bit, I2C
2x40 Right Angle Edge Connector for micro:bit visual preview2x40 Right Angle Edge Connector for micro:bit
32F429IDISCOVERY / STM32F429I-DISC1 Discovery Kit visual preview32F429IDISCOVERY / STM32F429I-DISC1 Discovery Kit
7-segment for micro:bit visual preview7-segment for micro:bit
Adafruit CAN Bus BFF Add-On for QT Py visual previewAdafruit CAN Bus BFF Add-On for QT Py
$8.95
Adafruit CH552 QT Py - 8051 Dev Board with STEMMA QT visual previewAdafruit CH552 QT Py - 8051 Dev Board with STEMMA QT
$4.95
Adafruit CRICKIT for Circuit Playground Express visual previewAdafruit CRICKIT for Circuit Playground Express
Adafruit CRICKIT for micro:bit visual previewAdafruit CRICKIT for micro:bit
Adafruit DC Power BFF Add-On for QT Py visual previewAdafruit DC Power BFF Add-On for QT Py
$7.95
Adafruit Feather 328P - Atmega328P 3.3V @ 8 MHz visual previewAdafruit Feather 328P - Atmega328P 3.3V @ 8 MHz
Adafruit Feather 32u4 Adalogger visual previewAdafruit Feather 32u4 Adalogger
Related groups
4 groups
10 I/Os PLC Module - CPU Arduino Nano (Optoisolated Output) visual previewArduino
About 75 boards across every Arduino generation: 5V Uno/Mega/GIGA, 3.3V MKR and Portenta, plus DFRduino and Bluno compatibles. Confirm the voltage rail before stacking any shield.
Boards · Arduino boards · 77 parts
10 I/Os Relay Module - CPU ESP32 (Relay Output) visual previewESP32
Wi-Fi and Bluetooth on a single chip, in every shape from Espressif DevKitC to Adafruit Feathers with STEMMA QT, DFRobot FireBeetles tuned for battery life, and Seeed XIAOs under a thumbnail.
Boards · ESP32 boards · 159 parts
15x7 CharliePlex LED Matrix FeatherWing - Cool White visual previewAdd-ons
About 270 add-ons across Pi HATs, Arduino shields, and FeatherWings. The same function — motor control, PoE, display — usually ships once per host connector family. Get the host board right first.
Boards · HATs, Shields & add-ons · 270 parts
Adafruit DVI Breakout Board for HDMI Source Devices visual previewPi Pico
The Raspberry Pi MCU line — Pico, Pico 2, and third-party boards on the same silicon — plus a deep bench of Pico-pinout displays, loggers, and radio modules that do nothing without a Pico plugged in.
Boards · Pico & RP2040 boards · 43 parts