LoRa@FIIT Arduino Library

This is an Arduino library for LoRa@FIIT communication using the LoRa Radio Node 1.0 at 868 MHz.

Installation

To use this library, you'll need PlatformIO IDE installed. Add the following line to your platformio.ini dependencies:

lib_deps =
   LoRa@FIIT

Usage

Initializing LoRa

#include <lora.h>

// Define your pins
#define RFM95_CS 10
#define RFM95_INT 2
#define RFM95_RST 9

lora LoRa(RFM95_CS, RFM95_INT, RFM95_RST);

void setup() {
  LoRa.On();       // Reset and initialize the chip
  LoRa.SetDefault(); // Set default settings
}

void loop() {
  // Your LoRa communication code here
}

API Reference

Class lora

Constructor

lora(uint8_t slaveSelectPin, uint8_t interruptPin, uint8_t resetPin);

Initialize LoRa module with the specified pins.

Methods

• void On(): Reset and initialize the chip.
• void SetDefault(): Set default LoRa settings.
• bool SetBW(float bandwidth): Set the bandwidth.
• bool SetCR(uint8_t codingRate): Set the coding rate.
• bool SetSF(uint8_t spreadingFactor): Set the spreading factor.
• bool SetFrequency(float frequency): Set the operating frequency.
• bool SetPW(uint8_t power, bool useRF0): Set the transceiver power.
• void Awake(): Turn on the LoRa module.
• void Sleep(): Put the LoRa module to sleep.
• bool Send(uint8_t* data, uint8_t &len): Send basic data message with ACK.
• bool Send(uint8_t type, uint8_t ack, uint8_t* data, uint8_t &len): Send a specific message.
• bool SendHello(uint8_t* data, uint8_t &len): Send a "Hello" message.
• bool SendEmergency(uint8_t* data, uint8_t &len): Send an emergency message.
• unsigned long Getsendtime(): Get the time when the message was sent.
• uint8_t Receive(uint8_t* buf, uint8_t &len): Turn on receiving mode.
• bool Register(uint8_t* buffer, uint8_t &len): Register the device.
• unsigned long GetDutyWait(): Get the wait time due to duty cycle.
• uint32_t WaitDutyCycle(uint8_t len, float bw, uint8_t sf, uint8_t cr, uint8_t type): Handle duty cycle.

Private Members (selected)

• bool _manual: Flag for manual mode.
• uint8_t currentSF: Current spreading factor.
• float bwDC: Current bandwidth.
• uint8_t percentageDC: Current duty cycle percentage.
• uint8_t crDC: Current coding rate.
• uint8_t sfDC: Current spreading factor.
• uint8_t pwDC: Current power.
• DH dhkey1: Diffie-Hellman key instance.
• uint16_t _sequence_number: Current sequence number.
• unsigned long _sendtime: Time when the message was sent.

License

See the LICENSE file for details.

Credits

• Author: Simon Štefunko, Alexander Valach, Michal Greguš