Dispaly paramters show

LoRaReceiverInterrupt/LoRaReceiverInterrupt.ino

@@ -37,6 +37,7 @@ String str;
 
 int addr = 0;
 #define EEPROM_SIZE 1
+int eValue = 0;
 int eeValue = 0;
 
 void setup() {
@@ -51,13 +52,16 @@ void setup() {
   display.setFont(ArialMT_Plain_10);
   //------------------------------------------------------------------------
 
+  Serial.begin(115200);
+  while (!Serial);
+
   if (!EEPROM.begin(EEPROM_SIZE))
   {
     Serial.println("failed to initialise EEPROM"); delay(1000000);
   }
-  
-  Serial.begin(115200);
-  while (!Serial);
+
+  eeValue = (EEPROM.read(addr));
+  Serial.println(String(eeValue));
 
   Serial.println("LoRa Receiver Callback");
   SPI.begin(SCK,MISO,MOSI,SS);
@@ -87,8 +91,14 @@ void loop() {
     //Reset rele
     digitalWrite(RELE_1, LOW);
     digitalWrite(RELE_2, LOW);
-    eeValue = (EEPROM.read(addr));
-    Serial.println(String(eeValue));
+  } else {
+    
+    Serial.println(eeValue);
+
+    eeValue = genNextPrime(eeValue);
+    
+//    EEPROM.write(addr, eeValue);
+//    EEPROM.commit();
   }
   
   drawTextOLED(str);
@@ -132,11 +142,6 @@ void onReceive(int packetSize)
 
     String r1 = String(RELE_1, DEC);
     String r2 = String(RELE_2, DEC);
-
-    eeValue = 1234;
-
-    EEPROM.write(addr, eeValue);
-    EEPROM.commit();
     
     if(extraParam == 111)
     {
@@ -158,7 +163,7 @@ void onReceive(int packetSize)
     LoRa.endPacket();
     
     // put the radio into receive mode
-    LoRa.receive();    
+    LoRa.receive();
   }
   // print RSSI of packet
   Serial.print("' with RSSI ");
@@ -183,7 +188,15 @@ void setRele2()
 
 long i = 2; // Start at 2
 
-int is_prime(long num) {
+long genNextPrime(const long currentPrime) {
+    long i = currentPrime + 1;
+    while (!isPrime(i)) {
+        i++;
+    }
+    return i;
+}
+
+int isPrime(long num) {
   // Only have to check for divisible for the sqrt(number)
   int upper = sqrt(num);
 
@@ -198,4 +211,3 @@ int is_prime(long num) {
 
   return 1; // If you get this far it's prime
 }
-

LoRaSender/LoRaSender.ino

@@ -23,6 +23,8 @@
 
 #include <ESPmDNS.h>
 
+#include "SSD1306.h" // alias for `#include "SSD1306Wire.h"`
+
 const char* ssid = "Thomas";
 const char* password = "viapiccardi47!!thomas";
 
@@ -41,8 +43,13 @@ WiFiServer server(80);
 #define BAND    868E6  //you can set band here directly,e.g. 868E6,915E6
 #define PABOOST true
 
+SSD1306  display(0x3c, 4, 15);
+
+String ipAddr = "";
+String lastCommand = "";
+
 void setup(void)
-{
+{  
     pinMode(25,OUTPUT);
   
     Serial.begin(115200);
@@ -72,8 +79,9 @@ void setup(void)
     Serial.print("Connected to ");
     Serial.println(ssid);
     Serial.print("IP address: ");
-    Serial.println(WiFi.localIP());
-
+    ipAddr = WiFi.localIP().toString();
+    Serial.println(ipAddr);
+  
     // Set up mDNS responder:
     // - first argument is the domain name, in this example
     //   the fully-qualified domain name is "esp8266.local"
@@ -93,6 +101,34 @@ void setup(void)
 
     // Add service to MDNS-SD
     MDNS.addService("http", "tcp", 80);
+
+    //-------- DISPLAY INIT --------------
+    
+    pinMode(16,OUTPUT);
+    digitalWrite(16, LOW);    // set GPIO16 low to reset OLED
+    delay(50); 
+    digitalWrite(16, HIGH); // while OLED is running, must set GPIO16 in high
+ 
+    // Initialising the UI will init the display too.
+    display.init();
+    display.flipScreenVertically();
+    display.setFont(ArialMT_Plain_10);
+}
+
+void drawTextOLED(String text, String ttext) {
+  display.clear();
+  display.setTextAlignment(TEXT_ALIGN_LEFT);
+  
+  display.setFont(ArialMT_Plain_10);
+  display.drawString(0, 0, "Last command : " + text);
+  
+  display.setFont(ArialMT_Plain_10);
+  display.drawString(0, 20, "IP addr : " + ttext);
+
+  display.setFont(ArialMT_Plain_10);
+  display.drawString(0, 40, "Giacomo Lavermicocca");
+  
+  display.display();
 }
 
 String s;
@@ -101,6 +137,8 @@ const long interval = 10000;
 
 void loop(void)
 {  
+    drawTextOLED(lastCommand, ipAddr);
+    
     // Check if a client has connected
     WiFiClient client = server.available();
     if (!client) {
@@ -144,8 +182,9 @@ void loop(void)
       s += "</html>\r\n\r\n";      
     } else if(req.indexOf('/pin') > 0) {
       pinRequest(req);     
+      lastCommand = req;
       s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>Hello from ESP32 at pin : ";
-      s += req.substring(req.lastIndexOf('/')+1);
+      s += lastCommand;
       s += "</html>\r\n\r\n";
       
       previousMillis = currentMillis;