例7 自行车里程/速度计的设计 例8 自动往返行驶小汽车的设计 例9 遥控小汽车的设计 ,Example 7 bike mileage/speed the design of Example 8 Automatic design of cars traveling to and from Example 9 Design of remote control cars

数控电源,俄罗斯方块，自行车程序，红外遥控爬虫机器人，混合电压设计-NC power, the Russian box, bike program, infrared remote control robot reptiles, mixed-voltage design