switched to dynamic payload mode, added a pretender

tools/rpi/discover/common.hpp

@@ -0,0 +1,18 @@
+#include <string>
+#include <stdint.h>
+
+using namespace std;
+
+/** Convert given 5-byte address to human readable hex string */
+string prettyPrintAddr(string &a);
+
+
+/** Convert a Hoymiles inverter/DTU serial number into its
+ * corresponding NRF24 address byte sequence (5 bytes).
+ *
+ * The inverters use a BCD representation of the last 8
+ * digits of their serial number, in reverse byte order, 
+ * followed by \x01.
+ */
+string serno2shockburstaddrbytes(uint64_t n);
+