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.
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.
One grouped connection is listed in the table but omitted from the graphic until individual pins are available.
| 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 |
One grouped connection is omitted from the graphic until individual pins are available.
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.
Specialists: 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.
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