3.Main Monitor Code

Libraries:

This is the list of the libraries used tn the code:

• • SPI.h Generic arduino library to communicate via SPI. Used by the ethernet module and the RF95 module.

  • ethernet.h Generic ethenet arduino library to manage the W5500 ethernet module

  • ethenetUDP.h Used to connect to NTP server via the ethenet w5500 module.

  • PubSubClient.h MQTT protocole library by Knolleary to communicate with my MQTT server

  • EEPROM.h generic arduino library to read and write to the EEPROM

  • ds1307.h by paul Stoffrengen library to communicate with the RTC module

  • wire.h library generic i2c arduino library to communicate with the RTC module via i2c

  • time.h and timeLib.h by paul Stoffrengen libraries used to translate time in different format

• LiquidCrystal.h Generic arduino library for the LCD module.

• RH_RF95.h by airspayce to communicate with the RF95 lora module

• RHReliableDatagram.h by airspayce to make an adressable network via the RF95 library.

The monitor code:

Check files at the bottom of the page for the source code.

The code is divided in 8 different modules or filed:

SolarEnergyMonitorMQTT.ino

This is the main heap of the program,

it is composed of:

• • the global variable definition

  • the callbackMQTTT() function,

  • the setup() loop

  • the main() loop

network.ino

it composed of the :

• • sendNTPpacket() function and the received NTPpacket

  • Functions to send and received UDP packets to synchronised time with the RTC module

• webserverClient() function

• where it is written all the webserver mechanism.

MQTT.ino

• • reconnect)_ function:

  • Subscrition to the MQTT topics

  • postEmoncms():

  • Publishing the relay states, SNR and RSSI of one device after a PONG reply

  • SendRelyStatus()

  • Publish the relay status of a specific device

  • SendAllRelayStatus():

  • publishing the state relay per relay of a spcific device

  • sendMonitor1()

  • publishing monitor text message (loar message, system message...)

  • sendAlarm()

  • Publishing the timer nightON nightOFF

  • sendMSK()

  • Publishing the RELAYMASK of all the devices at once with a JSON string{D1:8,C12:1,C14:3, C11:3,C10:3,C9:0,C8:0,C7:0,C60} where D1 is the device DIVING1, C12 is the device COTTAGE12 etc, followed by the int representing the mask.

lora.ino

• • sendMessage()

  • Sending message to lora radio [FORM][TO][CDE][RLY]

  • decodeAdress()

  • decoding the text form adress of a device to its lora adress integer.

  • decodePacket()

  • decoding the Lora packet [FROM][TO][CDE][RLY][RSSI][SNR]

  • sendPing()

  • Preparing the execution of the ping command device per device

  • loraRX()

  • Decoding the received packet from Lora

  • loraRESET

  • sending a reset command to the lora module

  • pingALL()

  • Preparing the ping timer command

  • allOn(),AllOff(),gardenOn()gardenOff(),wallOn()wallOff(),nightOn()nightOff(),cottagesOn()cottagesOff(),fridgesOn()fridgesOff(),rstAll()

  • sending specific command to all the devices

time.ino

• setTimeRTC()

• Set time to the RTC module via the serial console

• setDateRTC()

• Set date to the RTC module via the serial console

• dayOfTheWeek()

• Convert the day of the date to "Monday",Tuesday... form

• printDate(),printTime(),printAlarm()

• print date, time and night alarm to the serial consol

• setAlarm()

• Set the nightON nightOff timer from the serial consol

• NTPtimer()

• Timout timer if the NTP server doesn't reply

• dayNightTimer()

• send the setrelay command to each device when timerNightOn or OFF is trigger

• sendPingtimer()

• Send the ping command to ech device every 3 minutes

LCD.ino

it is where all the LCD screen are defined it is composed off:

• screen1()

• sendLcd()

• replyLcd()

• screenAlarmBat()

• NTPscreen()

• switches()

• menuAlarm()

• checkButton()

• switchCottage()

Menu.ino

This where the LCD menu are defined, it is composed of:

• mainMenu()

• menuMonitor()

• menuSwitches()

• menuNightLights()

• menuSelectLights()

• menuCottages()

• menuGenerator()

Serial.ino

it is composed of:

• printMenu()

• print on the serial port all the serial command available

• sendTO()

• read the [FROM][TO][CDE][RLY] sequence from the serial port

• menuSerial()

• Read the serial pors and interpret the command to run the subsquent function.

The Lora module code for the Arduino nano module:

The RF95 module is connected to ist own arduino nano MCU. The arduino nano is using it's serial port to communicate with the serial port 2 of the arduino mega.

there is a sotware serial for debugging.

the code is store in the following file:

SolarEnergyMonitorLoraTX

the folowing libraies are used:

• RHReliableDatagram.h

• RH_RF95.h

• SPI.h

• SoftwareSerial.h

The global variable definition are on the top of the file,

• setup() function is initialising the lora module and the serial ports

• main loop() fuction is listening the serial port for any packet to send or command to interpret from the monitor module.

• sendMessage()

• is sending any meesage from Monitor1 to anay device via the lora module and forward to the monitor module via the serial port any messages recieved from the lora module

• decodeAddress()

• Decode the test form address to the lora integer form address

• decodePacket()

• decode the packet [FROM][TO][CDE][RLY] to interpret any command directly send to the LORA module (RST etc...)

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