ZHILIUJIANSUDIANJIDEKONGZHIQISHIYIZHONGDUIZHILIUDIANJIDEYUNDONGGUOCHENGJINXINGZONGHEKONGZHIDEDIANQIZHUANGZHI，TAGONGYEJISHENGHUOZHONGDEDAOGUANGFANYINGYONG。XIAMIANJIUDAIDAJIALEJIEYIXIAZENMEXUANZEYIKUANHESHIDEZHILIUJIANSUDIANJIDEKONGZHIQI。

　　DIANJIKONGZHIQILEIXING：

　　YINWEIYOUBUTONGLEIXINGDEDIANJI，SUOYIJIUCUNZAIZHEBUTONGLEIXINGDEDIANJIKONGZHIQI。

　　YOUSHUAZHILIUDIANJIKONGZHIQI：SHIYONGZAIYOUSHUAZHILIU，ZHILIUJIANSUDIANJI，YIJIXIANXINGZHIDONGQIZHISHANG。

　　WUSHUAZHILIUDIANJIKONGZHIQI：SHIYONGZAIWUSHUAZHILIUDIANJIZHISHANG。

　　SIFUDIANJIKONGZHIQI：SHIYONGZAISIFUDIANJIZHISHANG。

　　BUJINDIANJIKONGZHIQI：SHIYONGZAIDANJIHUOZHESHUANGJIBUJINDIANJIZHISHANG。

　　XUANZEDIANJIKONGZHIQI：

　　ZHIYOUZAIXUANZEHAOLEDIANJIZHIHOU，DIANJIKONGZHIQICAINENGGOUBEIQUEDING。TONGSHI，DIANJIDEDIANLIUSHIYUQIZISHENNENGGOUTIGONGDENIUJUXIANGGUAN。XIAOXINGZHILIUDIANJIBUHUIXIAOHAOTAIDUODIANLIU，DANSHIQIYEBUNENGGOUTIGONGTAIDUOZHUANJU，NENGGOUTIGONGGAOZHUANJUDEDIANJI，QIBENSHENYEHUIXIAOHAOGENGGAODEDIANJI。

　　ZHILIUDIANJIKONGZHI：

　　SHOUXIANYAOKAOLVDEJIUSHIDIANJIDEEDINGDIANJI。ZHILIUDIANJIKONGZHIQIWANGWANGTIGONGYIGEDIANYAFANWEI。BIRUSHUO，RUGUONIDEDIANJIZAIEDING3VDIANYAXIAYUNZHUAN，NEIME，ZAIXUANZEDIANJIKONGZHIQIDESHIHOU，NIJIUBUNENGGOUXUANZEZHINENGGOUKONGZHI6V-9VDEDIANJIKONGZHIQI。ZHEIGEJIANGHUIBANGZHUNINCONGLIEBIAOSHANGSHANCHUYIXIEDIANJIKONGZHIQI。

　　YIDANNIFAXIANYIXIENENGGOUWEIDIANJITIGONGHESHIDIANYADEKONGZHIQIDESHIHOU，XIAYIBUNIXUYAOKAOLVDE

　　JIUSHIKONGZHISUOTIGONGDELIANXUDIANLIU。NIXUYAOZHAODAOYIGENENGGOUTIGONGXIANGDENGYUDIANJIZAIFUZAIXIADELIANXUDIANLIUXIAOHAO。RUGUONIWEIYIGE3A DIANJIXUANZE5A DIANJIKONGZHIQIDEHUA，NEIME，TAMENZHIHUIXUANZEXIAOHAOTAMENSUOXUYAODEDIANLIU。LINGYIFANGMIAN，YIGE5A DIANJIKENENGJIANGHUISUNHUI3ADIANJIKONGZHIQI。XUDUODIANJIZHIZAOSHANGTIGONGYIGEZHILIUDIANJIDEDUZHUANDIANLIU，ZHEIGEBINGBUHUIJINIYIGEXUANZEDIANJIKONGZHIQIDEQINGCHUGAINIAN。RUGUONIBUNENGGOUFAXIANDIANJILIANXUDEYUNXINGDIANJI，JIANDANDEMUZHIFAZEJIUKEYI，DIANJIDELIANXUDIANLIUDAGAISHIDUZHUANDIANLIUDE20%-25%。SUOYOUDEZHILIUDIANJIKONGZHIQITIGONGYIGEZUIDADEEDINGDIANLIU。ZHEIGEEDINGZHIDAYUESHIDIANJILIANXUDIANLIUDE2BEI。ZHUYIDANGDIANJIXUYAOCHANSHENGGENGDUODENIUJUDESHIHOU，TAXUYAOGENGDUODEDIANLIU。XUANZEYIGEJUYOUNEIZHIDEGUOLIUYUREBAOHUDEDIANJIKONGZHIQISHIYIGEBUCUODEXUANZE。

　　KONGZHIFANGSHIYOUSHILINGYIGEZHONGYAODEKAOLV。KONGZHIFANGFABAOKUOMONIDIANYA，I2C， PWM，R/C， UART。RUGUONIZHENGZAISHIYONGWEIXINGKONGZHIQI，QINGCHAKANNIYOUNAXIEZHENSHILEIXING，NAZHONGDIANJIKEGONGNIXUANZE。RUGUONIDEDIANJIYOUCHUANXINGTONGXINZHEN，NEIMENIJIUNENGGOUXUANZEYIGECHUANXINGDIANJIKONGZHIQI。DUIYUPWM, NIXUYAOSHIYONGYIGEPWMTONGDAO。

　　ZUIHOUXUYAOKAOLVDESHIYIGESHIJIDEFANGMIAN，DANHUOZHESHUANGDIANJIKONGZHIQI。YIGESHUANGDIANJIKONGZHINENGGOUDULIDIKONGZHILIANGGEDIANJIDESUDUYUFANGXIANG，BINGQIEHAINENGGOUJIESHENGSHIJIANYUJINQIAN。DIANJIBINGBUXUYAOYIYANG，RANERDUIYUYIDONGJIQIRENERYAN，ZAIDADUOSHUCHANGJINGZHONG，QUDONGDIANJIYINGGAISHIYIYANG。NIXUYAOJIYUZHILIUDIANJIDEGONGLV，LAIXUANZESHUANGDIANJIKONGZHIQI。ZHUYI，SHUANGDIANJIKONGZHIQIWANGWANGZHIYOUYIGEGONGLVSHURU。RUGUONIXIANGYAOTONGSHIKONGZHI6v YU12v DIANJIDEHUA，ZHEISHIBUKENENGDE。ZHUYI，SUOTIGONGDEEDINGDIANLIU，SHIMEIGEPINDAODE。

　　SHIJIDELIZI：

　　WOMENXUANZEDESHI3vZHILIUJIANSUDIANJI，YIXIASHIQICANSHU：

　　JIANSUBI：498.9:1

　　FEIFUZAIZHUANSU：150

　　FEIFUZAIDIANLIU：50mA

　　DUZHUANDIANLIU：500mA

　　DUZHUANNIUJU：0.5

　　YINGYONGLIZI：

　　EDINGDIANLIUSHI3V

　　ZHEIERMEIYOUTIJILIANXUDIANLIU，JINGUANTIGONGLEDUZHUANNIUJU。RUGUOWOMENQUZHEIXIEZHIDE25%,NEIMELIANXUDIANLIUDAYUEWEI：125mA. WEILEANQUANQIJIAN，YINGGAIXUANZEGENGDADEZHI。

　　GENJUYISHANGDEBIAOZHUN，WOMENXUANZEJUYOUYIXIAGUIGEDEDIANJIKONGZHIQI:

　　DIANYANENGGOUSHIYING3vDIANJI

　　LIANXUDIANLIUZHISHAOZAI350mA

　　SHUANGDIANJIKONGZHIQISHIYOUXIANXUANZEDE

　　YISHANGSHIGUANYUZHILIUJIANSUDIANJIDEKONGZHIQIZENMEXUANZE，DAJIAKEYIGENJUSHIJIQINGKUANG，XUANZEHESHIDEFANGFA，BIMIANMANGMUCAOZUOZAOCHENGBUBIYAODESUNSHI，RUGUODAJIAYOUQITAWENTI，KEYIGUANZHUWOMENDEWANGZHAN，WOMENHUIDINGQIGENGXINWANGZHANWENZHANG，XIWANGDUIDAJIAYOUSUOBANGZHU。