node-subg_rfspy

Node module used to communicate over SPI with subg_rfspy firmware on CC111x radio chip.

subg_rfspy firmware

constructor

The constructor accepts an optional settings object to configure the instance.

{
  chipSelect: 0,
  clockDivider: 6400, // 400MHz / 6400 = 62.5KHz for Raspberry Pi Zero W
  dataMode: 0,
  resetGPIO: 4
}

user methods

These are the methods commonly used by an application.

reset

(Promise) Command the firmware to perform a reset.

reboot

(Promise) Toggle the hardware reset pin.

getPackets

(Promise) Get an array of packets received by the radio.

sendPacket

(Promise) Send a data packet from the radio.

getState

(Promise) Get the firmware state.

readVersion

(Promise) Get the firmware version.

setLED

(Promise) Set an LED state.

low level methods

These are methods used within the SubgRFSpy class but are available to the user application.

readComms

(Promise) Read waiting data in the radio receive buffer.

extractPackets

Extract data packets from a stream of data received by the radio.

setReset

Set the hardware reset pin state.

sendCommand

(Promise) Send a command to the firmware.

transferByteArray

(Promise) Transfer an array of bytes over the SPI.

transferByte

(Promise) Transfer a byte over the SPI.

reverseByte

Reverse the endianness of the bits in a byte.

intToLEByteArray

Convert an integer into a little endian 4 byte array.

wait

(Promise) Wait n number of millisseconds.