用PythonPi实现门禁系统-示例 - 知乎专栏
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{"database":{"Post":{"":{"contributes":[],"title":"用PythonPi实现门禁系统-示例","author":"xu-xiao-yi-63","content":"和类似，首先实现了Python接口的API，基于图形界面的管理界面以后视情况提供。先看示例的接线图：这个示例是用树莓派的spi接口连接了一个rc522读卡器，以15号gpio口连接了一个led作为电锁动作的指示，15号gpio口连接了一个开关按钮作为出门按钮，1号gpio口连接了一个开关按钮模拟门状态。实现代码如下：这个示例是用树莓派的spi接口连接了一个rc522读卡器，以15号gpio口连接了一个led作为电锁动作的指示，15号gpio口连接了一个开关按钮作为出门按钮，1号gpio口连接了一个开关按钮模拟门状态。实现代码如下：
from cn.ijingxi.corpuscle.python import active
from cn.ijingxi.corpuscle.python import input
from cn.ijingxi.corpuscle.python import door
from cn.ijingxi.corpuscle.python import admin
#添加卡，卡号：-
admin.addPeople(admin.PeopleType_RC522,-,\"people1\")
#为该卡指定角色
admin.addRoleMap(admin.PeopleType_RC522,-,\"role1\")
#定义一个门
d=door(\"testDoor\")
#添加锁动作，开门与关门，15号gpio口
a1=active.getGPIO(\"/pi1/15\",active.HIGH)
a2=active.getGPIO(\"/pi1/15\",active.LOW)
d.addLockOpen(a1)
d.addLockClose(a2)
#添加出门按钮，16号gpio口，带上拉电阻，提供防抖动功能
es=input.getGPIO(\"/pi1/16\",input.PULL_UP,input.Flitter)
d.addExitSwitch(es)
#添加锁状态，1号gpio口，带上拉电阻，提供防抖动功能
ls=input.getGPIO(\"/pi1/1\",input.PULL_UP,input.Flitter)
d.addLockState(ls)
#添加读卡器
r=input.getRC522(\"/pi1/rc522_r1\")
d.addRecognizer(r)
#许可哪个角色可通过
d.addRole(\"role1\",r)
#设置完毕，开始初始化
d.init()请参考：将上述代码在“在线编程”页面中的代码输入框中输入，点击执行即实现了一个普通的单门门禁系统：- 刷卡（卡号：-），led亮，代表电锁解除锁门，5秒后led灭，即开门后延时5秒启动电锁锁门（只是下达了锁门的动作，如果此时门还没有开着则电锁不能锁上）- 按下16号gpio口所连的出门按钮，led亮，代表电锁解除锁门，5秒后led灭，即开门后延时5秒启动电锁锁门- 门开（led亮）后，如果不按下1号口所连接的开关按钮（代表门关闭了），led熄灭后再不会亮起。因为不关门，代表门一直开着，所以不会再次开门- 刷卡或按下出门按钮后，不等led自动熄灭就按下1号口所连接的开关按钮，此时led立刻熄灭。即开门后只推了下门却没外出，所以立刻关门- 刷其它卡无反应这几行代码就能实现这么多功能？！这是因为door这个组件封装了场景组件并预设了上述功能，下次我们再来详细讲解其是如何实现的====================================================================================================`关注我的公众号及时获取推送的最新文章` (二维码自动识别)","updated":"T03:47:21.000Z","canComment":false,"commentPermission":"anyone","commentCount":0,"collapsedCount":0,"likeCount":0,"state":"published","isLiked":false,"slug":"","isTitleImageFullScreen":false,"rating":"none","titleImage":"","links":{"comments":"/api/posts//comments"},"reviewers":[],"topics":[{"url":"/topic/","id":"","name":"智能硬件"},{"url":"/topic/","id":"","name":"树莓派（Raspberry Pi）"},{"url":"/topic/","id":"","name":"Python"}],"adminClosedComment":false,"titleImageSize":{"width":0,"height":0},"href":"/api/posts/","excerptTitle":"","tipjarState":"closed","annotationAction":[],"sourceUrl":"","pageCommentsCount":0,"hasPublishingDraft":false,"snapshotUrl":"","publishedTime":"T11:47:21+08:00","url":"/p/","lastestLikers":[],"summary":"和类似，首先实现了Python接口的API，基于图形界面的管理界面以后视情况提供。 先看示例的接线图： 这个示例是用树莓派的spi接口连接了一个rc522读卡器，以15号gpio口连接了一个led作为电锁动作的指示，15号gpio口连接了一个开关按钮作为…","reviewingCommentsCount":0,"meta":{"previous":null,"next":null},"annotationDetail":null,"commentsCount":0,"likesCount":0,"FULLINFO":true}},"User":{"xu-xiao-yi-63":{"isFollowed":false,"name":"徐晓轶","headline":"儒学懂一点，AI懂一点，其它问我可能回答不了","avatarUrl":"/v2-860b09cd5bc67ff6539b0_s.jpg","isFollowing":false,"type":"people","slug":"xu-xiao-yi-63","bio":"抱歉，很多问题回答不了:(","hash":"b4c5eefc063dbf67c1594","uid":20,"isOrg":false,"description":"儒学懂一点，AI懂一点，其它问我可能回答不了","profileUrl":"/people/xu-xiao-yi-63","avatar":{"id":"v2-860b09cd5bc67ff6539b0","template":"/{id}_{size}.jpg"},"isOrgWhiteList":false,"badge":{"identity":null,"bestAnswerer":null}}},"Comment":{},"favlists":{}},"me":{},"global":{"experimentFeatures":{"ge3":"ge3_9","ge2":"ge2_1","appStoreRateDialog":"close","nwebStickySidebar":"sticky","qrcodeLogin":"qrcode","favAct":"default","default":"None","mobileQaPageProxyHeifetz":"m_qa_page_nweb","newMore":"new","iOSNewestVersion":"4.2.0","newMobileColumnAppheader":"new_header","sendZaMonitor":"true","homeUi2":"default","answerRelatedReadings":"qa_recommend_by_algo_related_with_article","wechatShareModal":"wechat_share_modal_show","liveReviewBuyBar":"live_review_buy_bar_2","qaStickySidebar":"sticky_sidebar","androidProfilePanel":"panel_b","liveStore":"ls_a2_b2_c1_f2","zcmLighting":"zcm"}},"columns":{"next":{}},"columnPosts":{},"columnSettings":{"colomnAuthor":[],"uploadAvatarDetails":"","contributeRequests":[],"contributeRequestsTotalCount":0,"inviteAuthor":""},"postComments":{},"postReviewComments":{"comments":[],"newComments":[],"hasMore":true},"favlistsByUser":{},"favlistRelations":{},"promotions":{},"switches":{"couldAddVideo":false},"draft":{"titleImage":"","titleImageSize":{},"isTitleImageFullScreen":false,"canTitleImageFullScreen":false,"title":"","titleImageUploading":false,"error":"","content":"","draftLoading":false,"globalLoading":false,"pendingVideo":{"resource":null,"error":null}},"drafts":{"draftsList":[],"next":{}},"config":{"userNotBindPhoneTipString":{}},"recommendPosts":{"articleRecommendations":[],"columnRecommendations":[]},"env":{"edition":{},"isAppView":false,"appViewConfig":{"content_padding_top":128,"content_padding_bottom":56,"content_padding_left":16,"content_padding_right":16,"title_font_size":22,"body_font_size":16,"is_dark_theme":false,"can_auto_load_image":true,"app_info":"OS=iOS"},"isApp":false},"sys":{},"message":{"newCount":0},"pushNotification":{"newCount":0}}Python如何表示π值？ - 知乎7被浏览8936分享邀请回答164 条评论分享收藏感谢收起0添加评论分享收藏感谢收起銆怰aspberry Pi鍏ラ棬绯诲垪3銆慞YTHON鍩虹?
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