Datasheet

All pins going into the breakout have level shifting circuitry to make them 3-5V logic level safe. Use whatever logic

level is on Vin!

SCK - This is the SPI Clock pin, its an input to the chip

MISO - this is the Master In Slave Out pin, for data sent from the radio to your processor, 3.3V logic level

MOSI - this is the Master Out Slave In pin, for data sent from your processor to the radio

CS - this is the Chip Select pin, drop it low to start an SPI transaction. Its an input to the chip

RST - this is the Reset pin for the radio. It's pulled high by default. Pull down to ground to put it into reset

G0 - the radio's "GPIO 0" pin, also known as the IRQ pin, used for interrupt request notification from the radio to

the microcontroller, 3.3V logic level

Radio GPIO

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

breakouts

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