Use PacketCRC helper

PacketCRC.h

@@ -0,0 +1,18 @@
+#ifndef PACKET_CRC_H
+#define PACKET_CRC_H
+
+#include <CRC16.h>
+
+class PacketCRC {
+public:
+    PacketCRC();
+    ~PacketCRC();
+
+    // Method to calculate CRC for a packet
+    bool check(const uint8_t* packet);
+    uint16_t calculate(const uint8_t* packet);
+private:
+    CRC16 crc;
+};
+
+#endif // PACKET_CRC_H