diff --git a/inc/protocol.h b/inc/protocol.h
--- a/inc/protocol.h
+++ b/inc/protocol.h
@@ -67,6 +67,7 @@ bool protocol_receive_message(CanRxMsgTy
 bool protocol_send_message(protocol_message_t* message);
 bool protocol_process_message(protocol_message_t* message);
 bool protocol_send_data(protocol_data_key_t key, uint8_t sensor, float data);
+bool protocol_send_data_bytes(protocol_data_key_t key, uint8_t sensor, uint8_t* data);
 bool protocol_send_test();
 bool _protocol_config(protocol_message_t* message);