RAK5010模块sim卡调试，sim卡位电信卡

  at+set_config=cellular:(at+cops?)//查看注网 at+set_config=cellular:(at+cfun=?)//查询 at+set_config=cellular:(at+cfun=0)//关sim卡，关射频 at+set_config=cellular:(at+cfun=1) at+set_config=cellular:(at+cfun=1,1)//

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