通过控制继电器
继电器控制舵机板
用了这个模块实现
https://item.taobao.com/item.htm?ut_sk=1.Ypbg4J6D2mcDAE6pqOwic4mg_21380790_1668688936448.Copy.ShareGlobalNavigation_1&id=605697582486&sourceType=item&suid=3823881E-F8EC-4E40-B448-4880B907056E&un=c21d415e8e48043e1d47af8e7279b96e&share_crt_v=1&un_site=0&spm=a2159r.13376460.0.0&sp_abtk=gray_ShareGlobalNavigation_1_code_simpleonline&tbSocialPopKey=shareItem&sp_tk=MmdhcWRjSmlqejY%3D&cpp=1&shareurl=true&short_name=h.US9pKtG&bxsign=scdwAAIoxjNfqjTdNr3IVMke–dP-hhB_ryeIbrPYrMdlInESG3FxbU3WjLbnjeeJoN_7HB_80Nj94CiX3VQDghHLhMz0fKiV_k3ELAgK889qh-DacsWcVMootNHMXjUiKW&tk=2gaqdcJijz6&app=chrome
视频作者：不思量 自难忘
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