Allow for remote query of entire properties list

Author: nseidle

Firmware/LoRaSerial_Firmware/Commands.ino

@@ -707,9 +707,13 @@ void trimCommand()
 //Show current settings in user friendly way
 void displayParameters()
 {
-  for (uint8_t x = 0 ; x <= 25 ; x++)
+  for (uint8_t x = 0 ; x <= 26 ; x++)
   {
-    systemPrint("S");
+    if (printerEndpoint == PRINT_TO_RF)
+      systemPrint("R"); //If someone is asking for our settings over RF, respond with 'R' style settings
+    else
+      systemPrint("S");
+      
     systemPrint(x);
     systemPrint(":");
 

Firmware/LoRaSerial_Firmware/LoRaSerial_Firmware.ino

@@ -134,8 +134,8 @@ const int trainWithDefaultsButtonTime = 10000; //ms press and hold before enteri
 //uint8_t serialReceiveBuffer[512]; //Conserve RAM due to limitations
 uint8_t serialReceiveBuffer[32]; //Conserve RAM due to limitations
 #else
-uint8_t serialReceiveBuffer[1024 * 4]; //Buffer up to 1s of bytes at 4k
-uint8_t serialTransmitBuffer[1024 * 4]; //Buffer up to 1s of bytes at 4k
+uint8_t serialReceiveBuffer[1024 * 4]; //Bytes received from UART waiting to be RF transmitted. Buffer up to 1s of bytes at 4k
+uint8_t serialTransmitBuffer[1024 * 4]; //Bytes received from RF waiting to be printed out UART. Buffer up to 1s of bytes at 4k
 #endif
 
 uint16_t txHead = 0;

Firmware/LoRaSerial_Firmware/States.ino

@@ -190,7 +190,8 @@ void updateRadioState()
                 sendCommandDataPacket();
               }
 
-              printerEndpoint = PRINT_TO_SERIAL; //Once the response is received, we need to print it to serial
+              if(availableTXCommandBytes() == 0) 
+                printerEndpoint = PRINT_TO_SERIAL; //Once the response is received, we need to print it to serial
 
               changeState(RADIO_LINKED_TRANSMITTING);
             }

Firmware/LoRaSerial_Firmware/System.ino

@@ -250,10 +250,12 @@ uint8_t charToHex(char a, char b)
   b = toupper(b);
 
   if ('0' <= a && a <= '9') a -= '0';
-  if ('A' <= a && a <= 'F') a = a - 'A' + 10;
+  else if ('A' <= a && a <= 'F') a = a - 'A' + 10;
+  else return 0;
 
   if ('0' <= b && b <= '9') b -= '0';
-  if ('A' <= b && b <= 'F') b = b - 'A' + 10;
+  else if ('A' <= b && b <= 'F') b = b - 'A' + 10;
+  else return 0;
 
   return((a << 4) | b);
 }