[SX127x] Fixed references to 256 byte packets

examples/SX127x/SX127x_Transmit/SX127x_Transmit.ino

@@ -2,7 +2,7 @@
    RadioLib SX127x Transmit Example
 
    This example transmits packets using SX1278 LoRa radio module.
-   Each packet contains up to 256 bytes of data, in the form of:
+   Each packet contains up to 255 bytes of data, in the form of:
     - Arduino String
     - null-terminated char array (C-string)
     - arbitrary binary data (byte array)
@@ -59,7 +59,7 @@ void loop() {
   Serial.print(F("[SX1278] Transmitting packet ... "));
 
   // you can transmit C-string or Arduino string up to
-  // 256 characters long
+  // 255 characters long
   // NOTE: transmit() is a blocking method!
   //       See example SX127x_Transmit_Interrupt for details
   //       on non-blocking transmission method.

examples/SX127x/SX127x_Transmit_FHSS/SX127x_Transmit_FHSS.ino

@@ -2,7 +2,7 @@
    RadioLib SX127x Transmit with Frequency Hopping Example
 
    This example transmits packets using SX1278 LoRa radio module.
-   Each packet contains up to 256 bytes of data, in the form of:
+   Each packet contains up to 255 bytes of data, in the form of:
     - Arduino String
     - null-terminated char array (C-string)
     - arbitrary binary data (byte array)
@@ -56,7 +56,7 @@ int transmissionState = RADIOLIB_ERR_NONE;
 
 // this is the packet that will be sent
 String longPacket = "Let's create a really long packet to trigger \
-lots of hop interrupts. A packet can be up to 256 bytes long. \
+lots of hop interrupts. A packet can be up to 255 bytes long. \
 This packet is 222 bytes so using sf = 9, bw = 125, timeOnAir is \
 1488ms. 1488ms / (9*4.10ms) = 40 hops. Counter: ";
 

examples/SX127x/SX127x_Transmit_Interrupt/SX127x_Transmit_Interrupt.ino

@@ -2,7 +2,7 @@
    RadioLib SX127x Transmit with Interrupts Example
 
    This example transmits LoRa packets with one second delays
-   between them. Each packet contains up to 256 bytes
+   between them. Each packet contains up to 255 bytes
    of data, in the form of:
     - Arduino String
     - null-terminated char array (C-string)
@@ -56,10 +56,10 @@ void setup() {
   Serial.print(F("[SX1278] Sending first packet ... "));
 
   // you can transmit C-string or Arduino string up to
-  // 256 characters long
+  // 255 characters long
   transmissionState = radio.startTransmit("Hello World!");
 
-  // you can also transmit byte array up to 256 bytes long
+  // you can also transmit byte array up to 255 bytes long
   /*
     byte byteArr[] = {0x01, 0x23, 0x45, 0x67,
                       0x89, 0xAB, 0xCD, 0xEF};
@@ -114,10 +114,10 @@ void loop() {
     Serial.print(F("[SX1278] Sending another packet ... "));
 
     // you can transmit C-string or Arduino string up to
-    // 256 characters long
+    // 255 characters long
     transmissionState = radio.startTransmit("Hello World!");
 
-    // you can also transmit byte array up to 256 bytes long
+    // you can also transmit byte array up to 255 bytes long
     /*
       byte byteArr[] = {0x01, 0x23, 0x45, 0x67,
                         0x89, 0xAB, 0xCD, 0xEF};