begin encription logic

LoRaReceiverInterrupt/LoRaReceiverInterrupt.ino

@@ -13,6 +13,8 @@
 */
 #include <SPI.h>
 #include <LoRa.h>
+#include "SSD1306.h" // alias for `#include "SSD1306Wire.h"`
+#include "EEPROM.h"
 
 // Pin definetion of WIFI LoRa 32
 // HelTec AutoMation 2017 support@heltec.cn 
@@ -26,15 +28,33 @@
 #define BAND 868E6 //you can set band here directly,e.g. 868E6,915E6
 #define PABOOST true
 
-#define RELE_1 16
-#define RELE_2 17 //2
+#define RELE_1 12
+#define RELE_2 13 //2
 
-int counter = 0;
+SSD1306 display(0x3c, 4, 15);
+
+String str;
+
+int addr = 0;
+#define EEPROM_SIZE 1
+int eeValue = 0;
 
 void setup() {
- 
- pinMode(25,OUTPUT);
- digitalWrite(25, HIGH); // turn the LED on (HIGH is the voltage level)
+ //-------------------------------- DISPLAY ------------------------------
+ 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);
+ //------------------------------------------------------------------------
+
+ if (!EEPROM.begin(EEPROM_SIZE))
+ {
+ Serial.println("failed to initialise EEPROM"); delay(1000000);
+ }
  
  Serial.begin(115200);
  while (!Serial);
@@ -57,9 +77,37 @@ void setup() {
  LoRa.receive();
 }
 
-void loop() {
+unsigned long previousMillis = millis();
+const long interval = 2500;
+
+void loop() { 
  // do nothing
- // wait for a second
+ unsigned long currentMillis = millis();
+ if (currentMillis - previousMillis >= interval) {
+ //Reset rele
+ digitalWrite(RELE_1, LOW);
+ digitalWrite(RELE_2, LOW);
+ eeValue = (EEPROM.read(addr));
+ Serial.println(String(eeValue));
+ }
+ 
+ drawTextOLED(str);
+ display.display();
+}
+
+void drawTextOLED(String text) {
+ display.clear();
+ display.setTextAlignment(TEXT_ALIGN_LEFT);
+ 
+ display.setFont(ArialMT_Plain_10);
+ display.drawString(0, 0, text);
+ 
+ display.setFont(ArialMT_Plain_10);
+ String rssi = "RSSI " + String(LoRa.packetRssi(), DEC);
+ display.drawString(0, 20, rssi);
+
+ display.setFont(ArialMT_Plain_10);
+ display.drawString(0, 40, "Giacomo Lavermicocca");
 }
 
 void onReceive(int packetSize)
@@ -67,7 +115,7 @@ void onReceive(int packetSize)
  // received a packet
  Serial.print("Received packet '");
  // read packet
- String str;
+ str = "Last command : ";
  for (int i = 0; i < packetSize; i++)
  {
  char p = (char)LoRa.read();
@@ -75,41 +123,79 @@ void onReceive(int packetSize)
  str += p;
  }
 
- if(str == "hello 0")
+ if(str.indexOf("pin : ") >= 0)
  {
- digitalWrite(RELE_1, HIGH); // turn the LED on (HIGH is the voltage level)
- 
- digitalWrite(RELE_2, HIGH); // turn the LED on (HIGH is the voltage level)
- //delay(2000);
- //digitalWrite(RELE_1, LOW); // turn the LED on (HIGH is the voltage level)
- 
- //digitalWrite(RELE_2, LOW); // turn the LED on (HIGH is the voltage level)
- digitalWrite(25, HIGH); // turn the LED on (HIGH is the voltage level)
+ int extraParam = 111;
+ delay(1000);
+ 
+ Serial.println(str);
+
+ String r1 = String(RELE_1, DEC);
+ String r2 = String(RELE_2, DEC);
+
+ eeValue = 1234;
 
- delay(2000);
+ EEPROM.write(addr, eeValue);
+ EEPROM.commit();
+ 
+ if(extraParam == 111)
+ {
+ if(str.indexOf(r1) >= 0) //TODO manca la parte di sicurezza
+ {
+  setRele1();
+ }
+ if(str.indexOf(r2) >= 0)
+ {
+ setRele2();
+ }
+ }
+ 
  LoRa.beginPacket();
- LoRa.print("hello ");
- LoRa.print(counter%=2);
+ LoRa.print("received : ");
+ LoRa.print(str);
+ LoRa.print(" ");
+ LoRa.print(extraParam);
  LoRa.endPacket();
  
  // put the radio into receive mode
- LoRa.receive();
- 
- counter++;
- 
- } else if(str == "hello 1") {
- 
- digitalWrite(RELE_1, LOW); // turn the LED on (HIGH is the voltage level)
- 
- digitalWrite(RELE_2, LOW); // turn the LED on (HIGH is the voltage level)
-
- digitalWrite(25, LOW); // turn the LED off by making the voltage LOW
+ LoRa.receive(); 
  }
-
- // print RSSI of packet
+ // print RSSI of packet
  Serial.print("' with RSSI ");
  Serial.print(str);
  Serial.print(" ");
  Serial.println(LoRa.packetRssi());
 }
 
+void setRele1()
+{
+ digitalWrite(RELE_1, HIGH);
+ previousMillis = millis();
+}
+
+void setRele2()
+{
+ digitalWrite(RELE_2, HIGH);
+ previousMillis = millis();
+}
+
+//-------------------------- CODIFICA --------------------------
+
+long i = 2; // Start at 2
+
+int is_prime(long num) {
+ // Only have to check for divisible for the sqrt(number)
+ int upper = sqrt(num);
+
+ // Check if the number is evenly divisible (start at 2 going up)
+ for (long cnum = 2; cnum <= upper; cnum++) {
+ long mod = num % cnum; // Remainder
+
+ if (mod == 0) { 
+ return 0;
+ } // If the remainer is 0 it's evenly divisible
+ }
+
+ return 1; // If you get this far it's prime
+}
+

LoRaSender/LoRaSender.ino

@@ -15,14 +15,14 @@
 
  */
 
-
 #include <WiFi.h>
-#include <ESPmDNS.h>
 #include <WiFiClient.h>
 
 #include <SPI.h>
 #include <LoRa.h>
 
+#include <ESPmDNS.h>
+
 const char* ssid = "Thomas";
 const char* password = "viapiccardi47!!thomas";
 
@@ -41,8 +41,6 @@ WiFiServer server(80);
 #define BAND 868E6 //you can set band here directly,e.g. 868E6,915E6
 #define PABOOST true
 
-int counter = 0;
-
 void setup(void)
 {
  pinMode(25,OUTPUT);
@@ -97,8 +95,12 @@ void setup(void)
  MDNS.addService("http", "tcp", 80);
 }
 
+String s;
+unsigned long previousMillis = 0;
+const long interval = 10000;
+
 void loop(void)
-{
+{ 
  // Check if a client has connected
  WiFiClient client = server.available();
  if (!client) {
@@ -129,48 +131,53 @@ void loop(void)
  Serial.println(req);
  client.flush();
 
- String s;
+ Serial.println("Sending 200");
+ 
+ unsigned long currentMillis = millis();
+ 
  if (req == "/")
  {
- IPAddress ip = WiFi.localIP();
- String ipStr = String(ip[0]) + '.' + String(ip[1]) + '.' + String(ip[2]) + '.' + String(ip[3]);
- s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>Hello from ESP32 at ";
- s += ipStr;
+ IPAddress ip = WiFi.localIP();
+ String ipStr = String(ip[0]) + '.' + String(ip[1]) + '.' + String(ip[2]) + '.' + String(ip[3]);
+ s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>Hello from ESP32 at ";
+ s += ipStr;
+ s += "</html>\r\n\r\n"; 
+ } else if(req.indexOf('/pin') > 0) {
+ pinRequest(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 += "</html>\r\n\r\n";
+ 
+ previousMillis = currentMillis;
+ 
+ } else if(req.indexOf('/check') > 0) {
+ //OK send s to browser
+
+ if (currentMillis - previousMillis >= interval) {
+ s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>Last command timeout";
  s += "</html>\r\n\r\n";
- Serial.println("Sending 200");
-
- Serial.print("Sending packet: ");
- 
- Serial.println(counter);
- // send packet
- LoRa.beginPacket();
- LoRa.print("hello ");
- LoRa.print(counter%=2);
- LoRa.endPacket();
-
- // put the radio into receive mode
- LoRa.receive();
- 
- counter++;
- digitalWrite(25, HIGH); // turn the LED on (HIGH is the voltage level)
- delay(1000); // wait for a second
- digitalWrite(25, LOW); // turn the LED off by making the voltage LOW
- delay(1000); // wait for a second
- }
- else
- {
+ }
+ } else {
  s = "HTTP/1.1 404 Not Found\r\n\r\n";
  Serial.println("Sending 404");
  }
+
  client.print(s);
 
  Serial.println("Done with client");
 }
 
+//----------------------------------------------------------------------------------------------
+//--------------------------------------- LORA RECEIVE -----------------------------------------
+//----------------------------------------------------------------------------------------------
 
-
-
-
+// code = 0 --> null
+// code = 11 --> pinInput 1 --> read sensor
+// code = 12 --> pinInput 2
+// code = 13 --> pinInput 3
+// code = 21 --> pinOutput 1 --> write to
+// code = 22 --> pinOutput 2
+// code = 23 --> pinOutput 3
 
 void onReceive(int packetSize)
 {
@@ -185,19 +192,42 @@ void onReceive(int packetSize)
  str += p;
  }
 
- if(str == "hello 0")
+ if(str.indexOf("response : ") >= 0)
  {
- digitalWrite(25, HIGH); // turn the LED on (HIGH is the voltage level)
- 
- } else if(str == "hello 1") {
- 
- digitalWrite(25, LOW); // turn the LED off by making the voltage LOW
+ //prepare : it will ask next time brower interactions
+ s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>Last read of receive : ";
+ s += str;
+ s += "</html>\r\n\r\n";
  }
-
+ 
  // print RSSI of packet
  Serial.print("' with RSSI ");
- Serial.print(str);
- Serial.print(" ");
  Serial.println(LoRa.packetRssi());
 }
 
+//----------------------------------------------------------------------------------------------
+//------------------------------------------ REQUEST -------------------------------------------
+//----------------------------------------------------------------------------------------------
+
+void pinRequest(String req)
+{
+ Serial.println("pinRequest...");
+ req = req.substring(req.lastIndexOf('/')+1);
+ int reqInt = req.toInt();
+ Serial.println(reqInt);
+ // send packet
+ LoRa.beginPacket();
+ LoRa.print("pin : ");
+ LoRa.print(reqInt);
+ LoRa.endPacket();
+ 
+ // put the radio into receive mode
+ LoRa.receive();
+}
+
+//----------------------------------------------------------------------------------------------
+//---------------------------------------- ENCRIPTION ------------------------------------------
+//----------------------------------------------------------------------------------------------
+
+
+