1 /*
2  * Copyright (C) 2022 HiHope Open Source Organization .
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  *
14  * limitations under the License.
15  */
16 
17 #ifndef __ROBOT_SG90_H__
18 #define __ROBOT_SG90_H__
19 
20 
21 void engine_turn_left(void);
22 void engine_turn_right(void);
23 void regress_middle(void);
24 #endif
25