{"id":8843,"date":"2016-06-04T22:40:00","date_gmt":"2016-06-05T03:40:00","guid":{"rendered":"httpss:\/\/www.powenko.com\/wordpress\/?p=8843"},"modified":"2016-07-03T00:50:35","modified_gmt":"2016-07-03T05:50:35","slug":"rpi-%e8%aa%b2%e7%a8%8b%e8%a3%9c%e5%85%85","status":"publish","type":"post","link":"https:\/\/www.powenko.com\/wordpress\/?p=8843","title":{"rendered":"RPI \u8ab2\u7a0b\u88dc\u5145"},"content":{"rendered":"<pre>\r\n#!\/usr\/bin\/env python\r\n# author: Powen Ko\r\nimport serial\r\nimport time\r\nimport RPi.GPIO as GPIO\r\n\r\ndef readlineCR(port):\r\n rv = \"\"\r\n while True:\r\n ch = port.read()\r\n rv += ch\r\n if ch=='\\r' or ch=='':\r\n return rv\r\n \r\nGPIO.setmode(GPIO.BCM)\r\nGPIO.setup(4,GPIO.OUT)\r\nport = serial.Serial(\"\/dev\/ttyAMA0\", baudrate=9600, timeout=3.0)\r\n\r\n\r\nwhile True:\r\n rcv = readlineCR(port)\r\n print(rcv) \r\n port.write(rcv)\r\n str1=rcv.find(\"h\")\r\n if str1 &gt; 0 :\r\n GPIO.output(4,1)\r\n str1=rcv.find(\"l\") \r\n if str1 &gt; 0 :\r\n GPIO.output(4,0)\r\n time.sleep(0.1)\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\nwget httpss:\/\/www.python.org\/ftp\/python\/3.3.2\/Python-3.3.2.tar.bz2\r\ntar jxf .\/Python-3.3.2.tar.bz2\r\ncd .\/Python-3.3.2\r\n.\/configure --prefix=\/opt\/python3.3.2\r\nmake &amp;&amp; sudo make install\r\npython3.2 setup.py install\r\nsudo apt-get install python-serial\r\n<pre class=\"brush: php; title: ; notranslate\" title=\"\">\r\n\r\n#!\/usr\/bin\/env python\r\n# author: Powen Ko\r\nimport serial\r\nimport time\r\n\r\ndef readlineCR(port):\r\n  rv = &quot;&quot;\r\n  while True:\r\n    ch = port.read()\r\n    rv += ch\r\n    if ch=='\\r' or ch=='':\r\n       return rv\r\n\r\nport = serial.Serial(&quot;\/dev\/ttyAMA0&quot;, baudrate=115200, timeout=3.0)\r\nwhile True:\r\n  port.write(&quot;\\r\\nHi! I am Raspberry&quot;)\r\n  rcv = readlineCR(port)\r\n  port.write(&quot;\\r\\nYou sent:&quot; + repr(rcv))\r\n  time.sleep(1)\r\n\r\n\r\n<\/pre>\n<pre class=\"brush: php; title: ; notranslate\" title=\"\">\r\nimport time\r\nimport RPi.GPIO as GPIO\r\n\r\narray1=&#x5B;1,1,1,2,2,2]\r\narray2=&#x5B;10,20,30,10,20,100]\r\narray3=&#x5B;0.5,0.5,1.1,0.2,0.3,0.4]\r\n\r\nGPIO.setup(GPIO.BCM)\r\nGPIO.setup(4,GPIO.OUT)\r\np1=GPIO.PWM(4,100)\r\np1.start(0)\r\nGPIO.setup(17,GPIO.OUT)\r\np2=GPIO.PWM(17,100)\r\np2.start(0)\r\nGPIO.setup(27,GPIO.OUT)\r\np3=GPIO.PWM(27,100)\r\np3.start(0)\r\nwhile Ture:\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;  try:\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;    x=0\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;    for b in array1:\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;      a=array2&#x5B;x]\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;      c=array3&#x5B;x]\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;      x=x+1\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;      dc= int((a*19\/180)+5\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;      if b==1:\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;        p1.ChangeDutyCycle(dc)\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;      elif b==2:\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;        p2.ChangeDutyCycle(dc)\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;      elif b==3:\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;       p3.ChangeDutyCycle(dc)\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;      time.sleep(c)\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;  except ValueError:\r\n&amp;amp;amp;amp;amp;lt;%%KEEPWHITESPACE%%&amp;amp;amp;amp;amp;gt;    print(&quot;Not an interger valye&quot;)\r\n\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>#!\/usr\/bin\/env python # author: Powen Ko import serial  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[124],"tags":[],"class_list":["post-8843","post","type-post","status-publish","format-standard","hentry","category-124"],"_links":{"self":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/8843"}],"collection":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8843"}],"version-history":[{"count":12,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/8843\/revisions"}],"predecessor-version":[{"id":8860,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/8843\/revisions\/8860"}],"wp:attachment":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8843"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}