Initialization

Before starting to use a module, it needs to be initialized. During this process, Waspmote's SPI bus has to be opened to communicate with the module, and the LoRa module's switch has to be set on.

This module does not save the configuration. So, the network settings as the mode or the channel MUST be configured every time it is switched on.

Setting on

It initializes all the global variables, opens the SPI bus and switches the LoRa module on.

When setting on, the module always has the configuration by default shown in the next table:

Global variable	Description	Initial value
modem	activated mode	LORA
bandwidth	bandwidth to use in LoRa mode	BW_125
codingRate	coding rate to use in LoRa mode	CR_5
spreadingFactor	spreading factor to use in LoRa mode	SF_7
channel	transmission frequency channel	CH_12_900
header	specifies if header is enabled	HEADER_ON
CRC	specifies if CRC is enabled	CRC_OFF
power	power transmission level	15

Also, there are other global variables initialized when this function is called, shown in the following table:

Global variable	Description	Initial value
packetNumber	packet number to send	0
reception	specifies if packet is correctly received	CORRECT_PACKET
retries	number of the current retrying that is being executed in the protocol	0
maxRetries	maximum number of retries permitted in each case	3

Example of use:

{
    sx1272.ON(); // Opens the SPI and switches the SX1272 module ON
}

Setting off

It closes the SPI and switches the SX1272 module off.

Example of use:

{
    sx1272.OFF(); // Closes the SPI and switches the SX1272 module off
}