原创 实例１

https://static.assets-stash.eet-china.com/album/old-resources/2008/9/6/3c27fec0-f0aa-4d0e-bb91-742015862d12.rar　步进电机

https://static.assets-stash.eet-china.com/album/old-resources/2008/9/6/69ad3d53-9c6f-430b-bc26-b45c4c5d9aec.rar　音乐合

https://static.assets-stash.eet-china.com/album/old-resources/2008/9/6/83d254e0-8dad-463e-9044-6a123f0c841c.rar　液晶显示https://static.assets-stash.eet-china.com/album/old-resources/2008/9/6/8a76dc5d-8252-4bb5-95b0-ce8429583904.rar

https://static.assets-stash.eet-china.com/album/old-resources/2008/9/6/9bd31dd2-43d6-443e-b837-2325a14259ce.rar　自己做的电压表