{"id":4212,"date":"2013-10-12T23:29:22","date_gmt":"2013-10-13T04:29:22","guid":{"rendered":"httpss:\/\/www.powenko.com\/wordpress\/?p=4212"},"modified":"2014-10-29T20:53:25","modified_gmt":"2014-10-30T01:53:25","slug":"digital-%e6%95%b8%e4%bd%8d%e8%bc%b8%e5%85%a5%e8%88%87%e8%bc%b8%e5%87%ba","status":"publish","type":"post","link":"https:\/\/www.powenko.com\/wordpress\/?p=4212","title":{"rendered":"Digital \u6578\u4f4d\u8f38\u5165\u8207\u8f38\u51fa"},"content":{"rendered":"

5 Digital \u6578\u4f4d\u8f38\u5165\u8207\u8f38\u51fa<\/span><\/h1>\n

5.1 Digital Output\u8a2d\u5b9a <\/span><\/span>Pin \u7684\u8f38\u51fa<\/span><\/span>–\u9739\u9742\u71c8\u7bc4\u4f8b<\/span><\/span><\/h2>\n

pinMode (pin,mode)<\/p>\n

pinMode<\/span>\u51fd\u6578\u662f\u7528\u4ee5\u914d\u7f6e\u63a5\u8173\u70ba\u8f38\u5165\u6216\u8f38\u51fa\u6a21\u5f0f<\/span><\/span>,<\/span>\u5b83\u662f\u4e00\u500b\u7121\u8fd4\u56de\u503c\u51fd\u6578<\/span><\/span>,<\/span>\u51fd\u6578 <\/span><\/span><\/p>\n

\u6709\u5169\u500b\u53c3\u6578<\/span><\/span>pin<\/span>\u548c<\/span><\/span>mode<\/span>,<\/span>pin<\/span>\u53c3\u6578\u8868\u793a\u6240\u8981\u914d\u7f6e\u7684\u63a5\u8173<\/span><\/span>,<\/span>mode<\/span>\u53c3\u6578\u8868\u793a\u8a2d\u7f6e\u7684\u6a21 \u5f0f<\/span>\u2014\u2014<\/span>INPUT<\/span>(<\/span>\u8f38\u5165<\/span><\/span>)<\/span>\u6216<\/span><\/span>OUTPUT<\/span>(<\/span>\u8f38\u51fa<\/span><\/span>)<\/span>\u3002 <\/span><\/span><\/p>\n

pinMode(13, OUTPUT); \/\/ \u9019\u88e1\u8a2d\u5b9a\u6240\u8981\u8f38\u51fa\u7684<\/span>PIN\u8173\u6a21\u5f0f<\/span><\/p>\n

digitalWrite(13, HIGH); \/\/ \u8a2d\u5b9a<\/span>PIN13\u8173\u4f4d\u70ba\u9ad8\u96fb\u4f4d <\/span>= 5V<\/p>\n

digitalWrite(13, LOW); \/\/ \u8a2d\u5b9a<\/span>PIN13\u8173\u4f4d\u70ba\u4f4e\u96fb\u4f4d <\/span>= 0V<\/p>\n

\u4ecb\u7d39\uff1a<\/span><\/sup><\/p>\n

\u6211\u5011\u7b49\u4e0b\u5c31\u5229\u7528<\/span>Digital output \u7684\u6578\u4f4d\u8f38\u51fa\u529f\u80fd\uff0c\u4f86\u8a2d\u8a08\u4e00\u500b\u9739\u9742\u71c8\u7684\u786c\u9ad4\u3002<\/span><\/p>\n

\u6703\u900f\u904e\u4ee5\u4e0b\u7684\u51fd\u6578\u9054\u5230\u9019\u6a23\u7684\u6548\u679c\uff0c\u9996\u5148\u5728\u521d\u59cb\u5316\u7684\u6642\u5019\uff0c\u8a2d\u5b9a\u7279\u5b9a\u7684<\/span><\/p>\n

pinMode(13, OUTPUT);<\/code> \u505a\u6578\u4f4d\u8f38\u51fa\u7684\u52d5\u4f5c<\/span><\/p>\n

\u51fd\u5f8c\u518d\u4f86\u8a2d\u5b9a\u96fb\u4f4d\u9ad8\u8f38\u51fa<\/span>5V \u7684\u96fb\u58d3\uff0c\u4f86\u986f\u793a<\/span>LED\uff0c<\/span><\/p>\n

digitalWrite(13, HIGH);<\/code><\/p>\n

\u4e26\u4e14\u5728\u900f\u904e<\/span><\/p>\n

digitalWrite(13, LOW);<\/code><\/p>\n

\u4f86\u964d\u4f4e\u96fb\u58d3\u5230<\/span>0V\uff0c\u4f86\u95dc\u9589<\/span>LED\u3002<\/span><\/p>\n

\u900f\u904e<\/span>delay(200)\u4f86\u5ef6\u9072\u6642\u9593<\/span><\/code>0.2 \u79d2\u3002<\/span><\/code><\/p>\n

\u786c\u9ad4\u63a5\u7dda\uff1a<\/span><\/sup><\/p>\n

\u5716<\/span>5-1-1 \u9739\u9742\u71c8\u7684\u786c\u9ad4\u63a5\u7dda<\/span><\/p>\n

\u7bc4\u4f8b\u7a0b\u5f0f\uff1a<\/span><\/sup><\/p>\n

\u7bc4\u4f8b <\/span>Ch4-1 DancingLEDs.ino(\u7bc4\u4f8b\u7a0b\u5f0f\u4e2d<\/span>sample\\ch04\\DancingLEDs\\\uff09<\/span><\/p>\n

    \n
  1. int ledPin1 = 10; \/\/ <\/span>\u9019\u88e1\u8a2d\u5b9a\u6240\u8981\u9583\u720d\u7684<\/span>LED<\/span>\u71c8\u8173\u4f4d<\/span><\/li>\n
  2. int ledPin2 = 11; <\/span><\/li>\n
  3. int ledPin3 = 12; <\/span><\/li>\n
  4. <\/li>\n
  5. void setup()<\/span><\/li>\n
  6. {<\/span><\/li>\n
  7. pinMode(ledPin1, OUTPUT); \/\/ <\/span>\u9019\u88e1\u8a2d\u5b9a\u6240\u8981\u8f38\u51fa\u7684<\/span>PIN<\/span>\u8173\u6a21\u5f0f<\/span><\/li>\n
  8. pinMode(ledPin2, OUTPUT); <\/span><\/li>\n
  9. pinMode(ledPin3, OUTPUT); <\/span><\/li>\n
  10. }<\/span><\/li>\n
  11. <\/li>\n
  12. void loop()<\/span><\/li>\n
  13. {<\/span><\/li>\n
  14. digitalWrite(ledPin1, HIGH); \/\/ <\/span>\u8a2d\u5b9a<\/span>PIN13<\/span>\u8173\u4f4d\u70ba\u9ad8\u96fb\u4f4d <\/span>= 5V<\/span><\/li>\n
  15. delay(200); \/\/ <\/span>\u8a2d\u5b9a\u5ef6\u9072\u6642\u9593\uff0c<\/span>200 = 0.2<\/span>\u79d2<\/span><\/li>\n
  16. digitalWrite(ledPin2, HIGH); <\/span><\/li>\n
  17. delay(200);<\/span><\/li>\n
  18. digitalWrite(ledPin3, HIGH); <\/span><\/li>\n
  19. delay(200);<\/span><\/li>\n
  20. <\/li>\n
  21. digitalWrite(ledPin1, LOW); \/\/ <\/span>\u8a2d\u5b9a<\/span>PIN13<\/span>\u8173\u4f4d\u70ba\u4f4e\u96fb\u4f4d <\/span>= 0V<\/span><\/li>\n
  22. delay(200); \/\/ <\/span>\u8a2d\u5b9a\u5ef6\u9072\u6642\u9593 <\/span>200 = 0.2<\/span>\u79d2<\/span><\/li>\n
  23. digitalWrite(ledPin2, LOW); <\/span><\/li>\n
  24. delay(200); <\/span><\/li>\n
  25. digitalWrite(ledPin3, LOW); <\/span><\/li>\n
  26. delay(200); <\/span><\/li>\n
  27. }<\/span><\/li>\n<\/ol>\n

    \u7a0b\u5f0f\u89e3\u8aaa\uff1a<\/span><\/sup><\/span><\/p>\n