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LoRaGateway_BTS2A/gateway/gateway.ino

203 lines
10 KiB
C++

// Flavien HAAS, 2018
// before transfert, check these things:
// have all the librairies needed installed on your machine
// changed the SS port for ethernet as indicated on the README or you will not be able to use the LoRa shield as the same time as the Ethernet shield
#include <SPI.h> // to communicate using spi (required for our shields)
#include <LoRa.h> // to use the LoRa shield
#include <Ethernet.h> // to use the ethernet shield
#include <SD.h> // to use a SD card
#include <CModemLoRa.h> // to use personalised LoRa class
#include <CProtocol12Bytes.h> // to use our protocol
#define LENMAX 80 // maximum size for the LoRa frame
#define Serial SerialUSB // serial out on the M0 use a different function
CModemLoRa thisLoRa; // create object for personnalizeed LoRa class
CProtocol12Bytes protocol; // create object to store data using our protocol
File webFile; // variable for the file containing the webpage
byte mac[] = {0xFA, 0xE3, 0x40, 0xEF, 0xFF, 0xFD}; // set the mac address
IPAddress ip(192, 1, 1, 150); // set the IP address for the ethernet shield, overwise the librairy use DHCP
EthernetServer server(80); // initialize the EthernetServer library, using port 80 (default fot HTTP)
int ts1=0; // for comparing later the LoRa frames using timestamp data
int ts2=0; // for comparing later the LoRa frames using timestamp data
int id1=0; // for comparing later the LoRa frames using ID data
int id2=0; // for comparing later the LoRa frames using ID data
bool readFrameAndCheckID(); //function that compares station's ID
bool readFrameAndCheckTS(); //function that compares frame's TimeStamp
// void setSPIFrequency(uint32_t frequency); // set the SPI at 8MHz to use logic analyser
void setup(){
Serial.begin(9600);
while (!Serial); // wait for serial to initialize
Serial.println("LoRa Gateway"); // display on serial the name of the device
thisLoRa.begin(); // initialise LoRa
//Ethernet.begin(mac, ip); // initialize Ethernet shield using the set mac adress and set IP and DHCP for the rest
Ethernet.begin(mac); // initialize Ethernet shield uding the set mac and DHCP for the rest
server.begin(); // initialize WebServer part of the librairy
Serial.print("server is at ");
Serial.println(Ethernet.localIP()); // display on serial the IP you can find the webpage
Serial.println("Initializing SD card..."); // initialize SD card
if (!SD.begin(4)) {
Serial.println("ERROR - SD card initialization failed!");
return; // init failed
}
Serial.println("SUCCESS - SD card initialized.");
if (!SD.exists("index.htm")) { // check for index.htm file
Serial.println("ERROR - Can't find index.htm file!");
return; // can't find index file
}
Serial.println("SUCCESS - Found index.htm file.");
} // end of setup
void loop() {
// SerialPrintElapsedTime(); // diplay the time the frame arrived
// frame treatment
while(readFrameAndCheckID() == true){
// post to server
EthernetClient postClient;
String postData = "ID="+String(protocol.getStationId())+"&IDp="+String(protocol.getGatewayId())+"&TS="+String(protocol.getTimestampMessage())+"&DT="+String(protocol.getDataType())+"&D1="+String(protocol.getDataOne())+"&D2="+String(protocol.getDataTwo())+"&D3="+String(protocol.getDataThree());
if (postClient.connect("btslimayrac.ovh", 80)){
postClient.print("POST /weather/formulaire/formulaireCollecteLORA.php HTTP/1.1\n");
postClient.print("Host: btslimayrac.ovh\n");
postClient.print("Connection: close\n");
postClient.print("Content-Type: application/x-www-form-urlencoded\n");
postClient.print("Content-Length: ");
postClient.print(postData.length());
postClient.print("\n\n");
postClient.print(postData);
Serial.println("Post to server sent");
}
else{
Serial.println("Post failed");
}
}
// WebServer
EthernetClient serverGateway = server.available(); // try to get client
if (serverGateway) { // got client?
boolean currentLineIsBlank = true;
while (serverGateway.connected()) {
if (serverGateway.available()) { // client data available to read
char c = serverGateway.read(); // read 1 byte (character) from client
// last line of client request is blank and ends with \n
// respond to client only after last line received
if (c == '\n' && currentLineIsBlank) {
// send a standard http response header
serverGateway.println("HTTP/1.1 200 OK");
serverGateway.println("Content-Type: text/html");
serverGateway.println("Connection: close");
serverGateway.println();
// send web page
webFile = SD.open("index.htm"); // open web page file
if (webFile) { // if the webfile exist
while(webFile.available()) { // the webfile is avaible
serverGateway.write(webFile.read()); // send webfile to client
}
webFile.close();
}
break;
}
// every line of text received from the client ends with \r\n
if (c == '\n') {
// last character on line of received text
// starting new line with next character read
currentLineIsBlank = true;
}
else if (c != '\r') {
// a text character was received from client
currentLineIsBlank = false;
}
} // end if (client.available())
} // end while (client.connected())
delay(1); // give the web browser time to receive the data
serverGateway.stop(); // close the connection
} // end if (serverGateway)
} //end void loop
bool readFrameAndCheckID(){
int packetSize = thisLoRa.parsePacket();
if (packetSize > 0)
{
thisLoRa.read(&protocol); // objet thislora qui appele classe Lora.h et rempli la stucture de l'objet protocol, ser a allèger -5lignes
SerialUSB.println("Frame received");
delay(100);
}
id1 = protocol.getStationId();
// big delay
packetSize = thisLoRa.parsePacket();
if (packetSize > 0)
{
thisLoRa.read(&protocol); // objet thislora qui appele classe Lora.h et rempli la stucture de l'objet protocol, ser a allèger -5lignes
SerialUSB.println("Frame received");
delay(100);
}
id2 = protocol.getStationId();
if(id1==id2){
readFrameAndCheckID();
}
else{
readFrameAndCheckTS();
return true;
}
} //end readframeandcheckid
bool readFrameAndCheckTS(){
int packetSize = thisLoRa.parsePacket();
if (packetSize > 0)
{
thisLoRa.read(&protocol); // objet thislora qui appele classe Lora.h et rempli la stucture de l'objet protocol, ser a allèger -5lignes
SerialUSB.println("Frame received");
delay(100);
}
ts1 = protocol.getTimestampMessage();
packetSize = thisLoRa.parsePacket();
if (packetSize > 0)
{
thisLoRa.read(&protocol); // objet thislora qui appele classe Lora.h et rempli la stucture de l'objet protocol, ser a allèger -5lignes
SerialUSB.println("Frame received");
delay(100);
}
ts2 = protocol.getTimestampMessage();
if(ts1==ts2){
return false;
}
else{
SerialUSB.println("New Frame :");
SerialUSB.print("ID = ");
SerialUSB.print(protocol.getStationId(),HEX);
SerialUSB.println(protocol.getGatewayId(),HEX);
SerialUSB.print("TS = ");
SerialUSB.println(protocol.getTimestampMessage(),HEX);
SerialUSB.print("DT = ");
SerialUSB.println(protocol.getDataType(),HEX);
SerialUSB.print("D1 = ");
SerialUSB.println(protocol.getDataOne(),HEX);
SerialUSB.print("D2 = ");
SerialUSB.println(protocol.getDataTwo(),HEX);
SerialUSB.print("D3 = ");
SerialUSB.println(protocol.getDataThree(),HEX);
return true;
}
} //end readframeandcheckts
//void PrintElapsedTime( boolean espaceFinal=true ){ // to display the elapsed time
// unsigned long h,m,s = millis()/1000;
// m=s/60;
// h=m/60;
// s=s-(m*60);
// m=m-(h*60);
// Serial << ((h<10)?"0":"") << h << ":" << ((m<10)?"0":"") << m << ":" << ((s<10)?"0":"") << s << (espaceFinal?" ":"");
//}