Datasheet

The radio's have another 5 GPIO pins that can be used for various notifications or radio functions. These aren't used

for the majority of uses but are available in case you want them! All are 3.3V logic with no level shifting

Antenna Connection

This three-way connection lets you select which kind of Antenna you'd like, from the lowest cost wire dipole to the

fanciest SMA

https://learn.adafruit.com/adafruit-rfm69hcw-and-rfm96-rfm95-rfm98-lora-packet-padio-

breakouts

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