Change target to broadcast address to facilitate easy unit replacement.

Transmitter/src/Transmitter.cpp

@@ -3,9 +3,7 @@
 #include <espnow.h>
 
 class Transmitter {
-	uint8_t targets[2][6] = {
-		{0x50, 0x02, 0x91, 0xEA, 0x3D, 0xFD},
-		{0x50, 0x02, 0x91, 0xEA, 0x40, 0x83}};
+	uint8_t targets[1][6] = {{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}};
 
 	unsigned int _targetCount = sizeof(targets) / sizeof(targets[0]);
 
@@ -37,4 +35,4 @@ class Transmitter {
 			Serial.println(result);
 		}
 	}
-};
+};