The rfm69
package provides a Go interface to an SPI-attached
RFM69HCW module.
An RFM69HCW module on a convenient breakout board is available here or here.
The current version supports only OOK modulation (on-off keying) and a proprietary packet format (variable-length, null-terminated). Patches to support more general use are welcome.
Note that an antenna must be attached before using the module.
An edge-mounted female SMA connector can be attached conveniently.