reduce buffer size for arduino compilation when using ZaddonDHT

OpenMQTTGateway.ino

@@ -16,6 +16,7 @@
   - 1technophile
   - crankyoldgit
   - Spudtater
+  - prahjister
   - rickybrent
   - ekim from Home assistant forum
   - ronvl from Home assistant forum
@@ -37,7 +38,7 @@ CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFT
 #include <PubSubClient.h>
 
 // array to store previous received RFs, IRs codes and their timestamps
-unsigned long ReceivedSignal[10][2] ={{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}};
+unsigned long ReceivedSignal[8][2] ={{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}};
 /*------------------------------------------------------------------------*/
 
 //adding this to bypass the problem of the arduino builder issue 50
@@ -163,7 +164,7 @@ void loop()
 {
   //MQTT client connexion management
   if (!client.connected()) { // not connected
-    long now = millis();
+    unsigned long now = millis();
     if (now - lastReconnectAttempt > 5000) {
       lastReconnectAttempt = now;
       trc(F("client mqtt not connected, trying to connect"));
@@ -196,7 +197,7 @@ void loop()
 }
 
 void storeValue(long MQTTvalue){
-    long now = millis();
+    unsigned long now = millis();
     // find oldest value of the buffer
     int o = getMin();
     trc(F("Minimum index: "));
@@ -207,7 +208,7 @@ void storeValue(long MQTTvalue){
     trc(F("store this code :"));
     trc(String(ReceivedSignal[o][0])+"/"+String(ReceivedSignal[o][1]));
     trc(F("Col: value/timestamp"));
-    for (int i = 0; i < 10; i++)
+    for (int i = 0; i < 8; i++)
     {
       trc(String(i) + ":" + String(ReceivedSignal[i][0])+"/"+String(ReceivedSignal[i][1]));
     }
@@ -216,7 +217,7 @@ void storeValue(long MQTTvalue){
 int getMin(){
   int minimum = ReceivedSignal[0][1];
   int minindex=0;
-  for (int i = 0; i < 10; i++)
+  for (int i = 0; i < 8; i++)
   {
     if (ReceivedSignal[i][1] < minimum) {
       minimum = ReceivedSignal[i][1];
@@ -229,11 +230,11 @@ int getMin(){
 boolean isAduplicate(long value){
 trc(F("isAduplicate"));
 // check if the value has been already sent during the last time_avoid_duplicate
-for (int i=0; i<10;i++){
+for (int i=0; i<8;i++){
  if (ReceivedSignal[i][0] == value){
-      long now = millis();
+      unsigned long now = millis();
       if (now - ReceivedSignal[i][1] < time_avoid_duplicate){ // change
-      trc(F("--------------don't send the received code--------------"));
+      trc(F("--------------don't publish the received code duplicate--------------"));
       return true;
     }
   }