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LoRaGateway_BTS2A/gateway/gateway.ino

143 lines
7.0 KiB
C++

// Flavien HAAS, 2018
// before transfert, check that you have changed the SS port 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
#define LENMAX 80 // maximum size for the LoRa frame
#define Serial SerialUSB // serial out on the M0 use a different function
// void setSPIFrequency(uint32_t frequency); // set the SPI at 8MHz to use logic analyser
byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED}; // set the mac address
//IPAddress ip(10, 0, 0, 49); // 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)
typedef struct paquet_LoRa { // frame structure
uint16_t ID = 1025; // ID
uint16_t TS = 0; // TimeStamp
uint16_t DT = 0; // Data Type
uint16_t D1 = 0; // DATA 1
uint16_t D2 = 0; // DATA 2
uint16_t D3 = 0; // DATA 3
} trame;
trame message;
void setup(){
Serial.begin(9600);
while (!Serial); // wait for serial to initialize
Serial.print("Passerelle LoRa\n"); // display on serial the name of the device
if( !LoRa.begin(868E6) ){
Serial.print("Echec de l'initialisation LoRa !\n");
while(true);} // initialize LoRa shield LoRa at 868 MHz
//Ethernet.begin(mac, ip); // initialize Ethernet shield using the set mac adress and set IP
Ethernet.begin(mac); // initialize Ethernet shield uding the set mac and DHCP for the IP
server.begin(); // initialize WebServer part of the librairy
Serial.print("server is at "); // display on serial the IP you can find the webpage
Serial.println(Ethernet.localIP());
}
//void SerialPrintElapsedTime( 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?" ":"");
//}
void loop() {
// LoRa receiver
String strID = String(message.ID);//0x00
String strTS = String(message.TS);//0x0000
String strDT = String(message.DT);//0x0000
String strD1 = String(message.D1);//0x0000
String strD2 = String(message.D3);//0x0000
String strD3 = String(message.D3);//0x0000
static byte tampon[LENMAX]={0}; // if the module receive a frame, it willnot be null
int longueurTrame;
longueurTrame=LoRa.parsePacket(sizeof(message));
if( longueurTrame > 0 ){
if( longueurTrame>LENMAX ){ // copy of the frame to cache (LENMAX) and verify if the frame is to big
Serial.print("Trame reçue trop grande : ");
Serial.println(longueurTrame);
longueurTrame=LENMAX; // cut the frame to LENMAX size
}
for( int i=0; i<longueurTrame; i++ ){
tampon[i]=(byte)LoRa.read();
}
// SerialPrintElapsedTime(); // diplay the time the frame arrived
Serial.print("0x");
for( int i=0; i<longueurTrame; i++ ){ // display the frame in hexadecimal
if( tampon[i] < 0x0F ) Serial.print("0");
Serial.print( tampon[i], HEX );
}
Serial.print( " " );
for( int i=0; i<longueurTrame; i++ ){
if( (tampon[i] < 0x20)||(tampon[i] > 0x7E) ){
Serial.print( "."); // this character isn't printable (displayable)
}
else{
Serial.print( (char)tampon[i] ); // display the frame in ASCII
Serial.println("\nTaille du pacquet reçu en octets: "+LENMAX);
Serial.println("ID Passerelle et station reçus : "+strID);
Serial.println("Timestamp reçue : "+strTS);
Serial.println("Type de données reçus : "+strDT);
Serial.println("Champ de données 1 reçus : "+strD1);
Serial.println("Champ de données 2 reçus : "+strD2);
Serial.println("Champ de données 3 reçus : "+strD3);
}
}
Serial.print( "\n" );
} // end of if LoRa.parsePacket
delay(10);
// WebServer
EthernetClient client = server.available(); // WebServer :listen for incoming clients
if (client) {
Serial.println("new client");
boolean currentLineIsBlank = true; // an http request ends with a blank line
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
if (c == '\n' && currentLineIsBlank) { // send the beginning of a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close"); // the connection will be closed after completion of the response
client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<html>");
// output the value of each analog input pin
for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
int sensorReading = analogRead(analogChannel);
client.print("analog input ");
client.print(analogChannel);
client.print(" is ");
client.print(sensorReading);
client.println("<br />");
}
client.println("</html>");
break;
}
if (c == '\n') { // send a new blank line to indicate the end of the connection
currentLineIsBlank = true;
} else if (c != '\r') {
currentLineIsBlank = false;
}
}
}
delay(1); // give the web browser time to receive the data
client.stop(); // close the connection of the webserver
}
}