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// Flavien HAAS, 2018
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// to compile as on the diagrams, check that you have changed the SS port as indicated on the README
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#include <SPI.h> // to communicate using spi (required for our shields)
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#include <LoRa.h> // to use the LoRa shield
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#include "Ethernet.h" // to use the ethernet shield
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#include "util.h" // to have the display of the elapsed time
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#define LENMAX 80 // maximum size for the LoRa frame
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#define Serial SerialUSB // serial out on the M0 use a different function
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// void setSPIFrequency(uint32_t frequency); // set the SPI at 8MHz to use logic analyser
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byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED}; // set the mac address
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//IPAddress ip(10, 0, 0, 49); //set the IP address for the ethernet shield, overwise the librairy use DHCP
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EthernetServer server(80); // initialize the EthernetServer library, using port 80 (default fot HTTP)
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void setup(){
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Serial.begin(9600);
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while (!Serial); // wait for serial to initialize
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Serial.print("Passerelle LoRa\n"); // display on serial the name of the device
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if( !LoRa.begin(868E6) ){
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Serial.print("Echec de l'initialisation LoRa !\n");
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while(true);} // initialize LoRa shield LoRa at 868 MHz
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//Ethernet.begin(mac, ip); // initialize Ethernet shield using the set mac adress and set IP
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Ethernet.begin(mac); // initialize Ethernet shield uding the set mac and DHCP for the IP
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server.begin();
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Serial.print("server is at ");
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Serial.println(Ethernet.localIP());
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}
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void loop() {
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static byte tampon[LENMAX]={0};
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int longueurTrame;
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// si le module a reçu une trame alors sa longueur sera non nulle
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longueurTrame=LoRa.parsePacket();
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if( longueurTrame > 0 ){
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//---- copie de la trame depuis le modem vers le tampon ----
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if( longueurTrame>LENMAX ){
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Serial.print("Trame reçue est trop grande pour le tampon : ");
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Serial.println(longueurTrame);
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longueurTrame=LENMAX; // troncature
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}
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for( int i=0; i<longueurTrame; i++ ){
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tampon[i]=(byte)LoRa.read();
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}
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//---- affichage de l'heure d'arrivée ----
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SerialPrintElapsedTime();
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//---- affichage en hexadécimal ----
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Serial.print("0x");
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for( int i=0; i<longueurTrame; i++ ){
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if( tampon[i] < 0x0F ) Serial.print("0");
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Serial.print( tampon[i], HEX );
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}
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//---- affichage en ASCII ----
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Serial.print( " " );
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for( int i=0; i<longueurTrame; i++ ){
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if( (tampon[i] < 0x20)||(tampon[i] > 0x7E) ){
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Serial.print( "."); // ce caractère est non imprimable
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}else{
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Serial.print( (char)tampon[i] );
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}
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}
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Serial.print( "\n" );
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}//if LoRa.parsePacket
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delay(10);
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// listen for incoming clients
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EthernetClient client = server.available();
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if (client) {
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Serial.println("new client");
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// an http request ends with a blank line
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boolean currentLineIsBlank = true;
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while (client.connected()) {
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if (client.available()) {
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char c = client.read();
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Serial.write(c);
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// if you've gotten to the end of the line (received a newline
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// character) and the line is blank, the http request has ended,
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// so you can send a reply
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if (c == '\n' && currentLineIsBlank) {
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// send a standard http response header
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client.println("HTTP/1.1 200 OK");
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client.println("Content-Type: text/html");
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client.println("Connection: close"); // the connection will be closed after completion of the response
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client.println("Refresh: 5"); // refresh the page automatically every 5 sec
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client.println();
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client.println("<!DOCTYPE HTML>");
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client.println("<html>");
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// output the value of each analog input pin
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for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
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int sensorReading = analogRead(analogChannel);
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client.print("analog input ");
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client.print(analogChannel);
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client.print(" is ");
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client.print(sensorReading);
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client.println("<br />");
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}
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client.println("</html>");
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break;
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}
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if (c == '\n') {
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// you're starting a new line
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currentLineIsBlank = true;
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} else if (c != '\r') {
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// you've gotten a character on the current line
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currentLineIsBlank = false;
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}
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}
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}
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// give the web browser time to receive the data
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delay(1);
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// close the connection:
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client.stop();
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Serial.println("client disconnected");
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}
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}
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