diff --git a/Multiprotocol/SHENQI_nrf24l01.ino b/Multiprotocol/SHENQI_nrf24l01.ino
index c829f7e..2d6b020 100644
--- a/Multiprotocol/SHENQI_nrf24l01.ino
+++ b/Multiprotocol/SHENQI_nrf24l01.ino
@@ -1,3 +1,17 @@
+
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+ Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #if defined(SHENQI_NRF24L01_INO)
 
 #include "iface_nrf24l01.h"
@@ -105,4 +119,4 @@ uint16_t initSHENQI()
 	return 1000;
 }
 
-#endif
\ No newline at end of file
+#endif