{"id":21545,"date":"2022-04-04T16:44:16","date_gmt":"2022-04-04T11:14:16","guid":{"rendered":"http:\/\/www.pythonpool.com\/?p=21545"},"modified":"2022-04-04T16:44:19","modified_gmt":"2022-04-04T11:14:19","slug":"python-serial-read","status":"publish","type":"post","link":"https:\/\/www.pythonpool.com\/python-serial-read\/","title":{"rendered":"Everything You Should Know About Python Serial Read"},"content":{"rendered":"\n<p>Serial ports are serial communication interfaces through which information is transferred sequentially one bit at a time. Parallel ports, on the other hand, transmit multiple bits simultaneously. The PySerial and functions like python serial read make communication with Serial Ports easier. <\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #990303;color:#990303\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #990303;color:#990303\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#About_the_PySerial_Package\" >About the PySerial Package<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Installing_the_Module\" >Installing the Module<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Importing_the_Module_Verifying_Installation\" >Importing the Module + Verifying Installation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#About_the_Function\" >About the Function<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Using_the_Python_serial_read_function_to_Fetch_Information_From_Serial_Ports\" >Using the Python serial read function to Fetch Information From Serial Ports<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Python_Serial_Read_vs_Readline\" >Python Serial Read vs Readline<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Using_Serial_Read_Write_on_Raspberry_Pi\" >Using Serial Read + Write on Raspberry Pi<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Reading_Data\" >Reading Data<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Writing_Data\" >Writing Data<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Python_Serial_Read_in_Hex_Format\" >Python Serial Read in Hex Format<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Python_pySerial_in_waiting_Function\" >Python pySerial in_waiting Function<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Python_pySerial_flush_function\" >Python pySerial flush() function<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Reading_Data_From_Arduino_Boards_using_Python_Serial_Read\" >Reading Data From Arduino Boards using Python Serial Read<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Common_Errors\" >Common Errors<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Python_AttributeError_module_object_has_no_attribute_Serial\" >Python AttributeError: 'module' object has no attribute 'Serial'<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#FAQs_on_Python_Serial_Read\" >FAQs on Python Serial Read<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#Trending_Python_Articles\" >Trending Python Articles<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-about-the-pyserial-package\"><span class=\"ez-toc-section\" id=\"About_the_PySerial_Package\"><\/span>About the PySerial Package<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Python on a computer with the PySerial package installed can communicate with external hardware. It is a useful package for problem solvers because it facilitates data exchange between computers and external hardware like voltmeters,  flow meters, lights, and other devices that send information via ports.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-installing-the-module\"><span class=\"ez-toc-section\" id=\"Installing_the_Module\"><\/span>Installing the Module<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The PySerial package is NOT part of the Python Standard Library. Therefore, install manually. Anaconda Distributions of Python comes with the package pre-installed. <\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><strong>PIP Installation<\/strong> <strong>Command<\/strong>\n<code>$ pip install pyserial<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\"><strong>Anaconda Prompt Command<\/strong>\n<code>&gt; conda install pyserial<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-importing-the-module-verifying-installation\"><span class=\"ez-toc-section\" id=\"Importing_the_Module_Verifying_Installation\"><\/span>Importing the Module + Verifying Installation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>After installing, the version can be verified with the following command.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nimport serial\nprint(serial.version)\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-about-the-function\"><span class=\"ez-toc-section\" id=\"About_the_Function\"><\/span>About the Function<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>serial.read()<\/code><\/pre>\n\n\n\n<p><strong>Arguments <\/strong>&#8211; Pass an integer value to specify the number of bytes to be returned.<\/p>\n\n\n\n<p><strong>Returns<\/strong> &#8211;  Provides us a number of specified bytes<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-using-the-python-serial-read-function-to-fetch-information-from-serial-ports\"><span class=\"ez-toc-section\" id=\"Using_the_Python_serial_read_function_to_Fetch_Information_From_Serial_Ports\"><\/span>Using the Python serial read function to Fetch Information From Serial Ports<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Python serial read is an important function of the module. It allows us to rake in the information that is provided from the ports. Here&#8217;s a Python implementation that helps us to do so. <\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nwith serial.Serial('\/my\/sample1', 3443, timeout=1) as serial:\n     readOneByte = serial.read()          \n     readTenByte = serial.read(10)        \n<\/pre><\/div>\n\n\n<p id=\"h-explanation\"><strong>Explanation<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">By default, <code>.read()<\/code> reads one byte at a time. By providing an integer value, you can set how many bytes of information are to be read by the function. <\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-python-serial-read-vs-readline\"><span class=\"ez-toc-section\" id=\"Python_Serial_Read_vs_Readline\"><\/span>Python Serial Read vs Readline<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th><code>serial.read()<\/code><\/th><th><code>serial.readline()<\/code><\/th><\/tr><\/thead><tbody><tr><td><code>serial.read()<\/code> will return one byte at a time.<\/td><td><code>serial.readline()<\/code> will return all bytes until it reaches EOL.<\/td><\/tr><tr><td>If an integer is specified within the function, it will that return that many bytes.<br>Ex:<br><code>serial.read(20)<\/code><br>Will return 20 bytes.<\/td><td>Instead of using <code>serial.read()<\/code> over iterations, <code>serial.readline()<\/code> can be used.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"monsterinsights-inline-popular-posts monsterinsights-inline-popular-posts-india monsterinsights-popular-posts-styled\" ><div class=\"monsterinsights-inline-popular-posts-text\"><span class=\"monsterinsights-inline-popular-posts-label\" >Trending:<\/span><span class=\"monsterinsights-inline-popular-posts-border\" ><\/span><div class=\"monsterinsights-inline-popular-posts-post\"><a class=\"monsterinsights-inline-popular-posts-title\"  href=\"https:\/\/www.pythonpool.com\/fixed-typeerror-cant-compare-datetime-datetime-to-datetime-date\/\">[Fixed] typeerror can&#8217;t compare datetime.datetime to datetime.date<\/a><\/div><\/div><\/div><p><\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-using-serial-read-write-on-raspberry-pi\"><span class=\"ez-toc-section\" id=\"Using_Serial_Read_Write_on_Raspberry_Pi\"><\/span>Using Serial Read + Write on Raspberry Pi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Ensure that your Raspberry Pi is up to date by running the following commands<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>sudo apt update\nsudo apt upgrade<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-reading-data\"><span class=\"ez-toc-section\" id=\"Reading_Data\"><\/span>Reading Data<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nser = serial.Serial(\n        # Serial Port to read the data from\n        port='\/dev\/ttyUSB0',\n\n        #Rate at which the information is shared to the communication channel\n        baudrate = 9600,\n  \n        #Applying Parity Checking (none in this case)\n        parity=serial.PARITY_NONE,\n\n       # Pattern of Bits to be read\n        stopbits=serial.STOPBITS_ONE,\n    \n        # Total number of bits to be read\n        bytesize=serial.EIGHTBITS,\n\n        # Number of serial commands to accept before timing out\n        timeout=1\n)\n# Pause the program for 1 second to avoid overworking the serial port\nwhile 1:\n        x=ser.readline()\n        print x\n<\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-writing-data\"><span class=\"ez-toc-section\" id=\"Writing_Data\"><\/span>Writing Data<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nimport time\nimport serial\n\nser = serial.Serial(\n        # Serial Port to read the data from\n        port='\/dev\/ttyUSB0',\n\n        #Rate at which the information is shared to the communication channel\n        baudrate = 9600,\n  \n        #Applying Parity Checking (none in this case)\n        parity=serial.PARITY_NONE,\n\n       # Pattern of Bits to be read\n        stopbits=serial.STOPBITS_ONE,\n    \n        # Total number of bits to be read\n        bytesize=serial.EIGHTBITS,\n\n        # Number of serial commands to accept before timing out\n        timeout=1\n)\ncounter=0\n\n \n# Mentions the Current Counter number for each line written\n# Pauses for one second each iteration to avoid overworking the port\nwhile 1:\n        ser.write(&quot;Write counter: %d \\n&quot;%(counter))\n        time.sleep(1)\n        counter += 1\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-python-serial-read-in-hex-format\"><span class=\"ez-toc-section\" id=\"Python_Serial_Read_in_Hex_Format\"><\/span>Python Serial Read in Hex Format<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Using the <code>.hex() <\/code>function we are storing the byte data in hex format in the variable <code>hexData<\/code><\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nimport serial\n\nser = serial.Serial(\n    port='\/samplePort\/ttyUSB1',\n    baudrate=115200,\n    parity=serial.PARITY_NONE,\n    stopbits=serial.STOPBITS_ONE,\n    bytesize=serial.EIGHTBITS,\n    timeout = None\n)\n\nwhile 1:\n    print ser.read()\n    hexData= ser.read().hex()\n    print hexData\n<\/pre><\/div>\n\n<div class=\"monsterinsights-inline-popular-posts monsterinsights-inline-popular-posts-hotel monsterinsights-popular-posts-styled\" ><div class=\"monsterinsights-inline-popular-posts-text\"><span class=\"monsterinsights-inline-popular-posts-icon\" style=\"\"><svg width=\"14\" height=\"19\" viewBox=\"0 0 14 19\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M7.875 0.899463C7.875 1.59183 8.0816 2.24711 8.49479 2.8653C8.93229 3.48349 9.44271 4.06458 10.026 4.60859C10.6337 5.15259 11.2292 5.73369 11.8125 6.35188C12.4201 6.97007 12.9306 7.76135 13.3438 8.72572C13.7812 9.66537 14 10.7163 14 11.8785C14 13.832 13.3073 15.5011 11.9219 16.8858C10.5608 18.2953 8.92014 19 7 19C5.07986 19 3.42708 18.2953 2.04167 16.8858C0.680556 15.5011 0 13.832 0 11.8785C0 9.94973 0.668403 8.28062 2.00521 6.87116C2.27257 6.57443 2.58854 6.50024 2.95312 6.64861C3.31771 6.79697 3.5 7.08134 3.5 7.50171V10.6545C3.5 11.3221 3.71875 11.8908 4.15625 12.3607C4.61806 12.8305 5.16493 13.0654 5.79688 13.0654C6.45312 13.0654 7.01215 12.8428 7.47396 12.3978C7.93576 11.9279 8.16667 11.3592 8.16667 10.6916C8.16667 10.2712 8.04514 9.86318 7.80208 9.46754C7.58333 9.0719 7.31597 8.71336 7 8.3919C6.68403 8.07044 6.34375 7.73662 5.97917 7.39043C5.63889 7.04425 5.34722 6.66097 5.10417 6.2406C4.88542 5.82024 4.73958 5.35041 4.66667 4.83114C4.59375 4.31186 4.67882 3.68131 4.92188 2.93948C5.18924 2.17293 5.63889 1.33219 6.27083 0.417277C6.51389 0.0463641 6.84201 -0.0772735 7.25521 0.0463641C7.6684 0.170002 7.875 0.454368 7.875 0.899463Z\" fill=\"#EB5757\"><\/path><\/svg><\/span><div class=\"monsterinsights-inline-popular-posts-post\"><a class=\"monsterinsights-inline-popular-posts-title\"  href=\"https:\/\/www.pythonpool.com\/fixed-nameerror-name-unicode-is-not-defined\/\">[Fixed] nameerror: name Unicode is not defined<\/a><\/div><\/div><\/div><p><\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-python-pyserial-in-waiting-function\"><span class=\"ez-toc-section\" id=\"Python_pySerial_in_waiting_Function\"><\/span>Python pySerial in_waiting Function<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>This function can be used to retrieve the number of <span style=\"text-decoration: underline;\"><strong><a href=\"http:\/\/www.pythonpool.com\/write-bytes-to-file-python\/\" target=\"_blank\" rel=\"noreferrer noopener\">bytes in the input buffer<\/a><\/strong><\/span>.<\/p>\n\n\n\n<p><strong>Return(s)<\/strong> &#8211; Integer<\/p>\n\n\n\n<p><strong>Arguments<\/strong> &#8211; None<\/p>\n\n\n\n<p>The function out_waiting() performs similarly. It provides the number of bytes in the output buffer.<\/p>\n\n\n\n<p>Here&#8217;s an example program implementing the said function.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nimport serial\nser = serial.Serial(\n    port = '\/samplePort\/myUSB',\n    baudrate = 5000,\n    parity = serial.PARITY_NONE,\n    stopbits = serial.STOPBITS_ONE,\n    bytesize = serial.EIGHTBITS,\n    timeout=0.5, \n    inter_byte_timeout=0.1 \n    )\n\n# Reads one byte of information\nmyBytes = ser.read(1) \n\n# Checks for more bytes in the input buffer\nbufferBytes = ser.inWaiting()\n\n# If exists, it is added to the myBytes variable with previously read information\nif bufferBytes:\n    myBytes = myBytes + ser.read(bufferBytes)\n    print(myBytes)\n\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-python-pyserial-flush-function\"><span class=\"ez-toc-section\" id=\"Python_pySerial_flush_function\"><\/span>Python pySerial flush() function<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><code>flush()<\/code> eliminates the contents of the internal buffer of a file object. It doesn&#8217;t take any arguments nor return anything. There are 2 types of flush functions:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><code>flushInput()<\/code> &#8211; Clears Input Buffer<\/li><li><code>flushOutput()<\/code> &#8211; Clears Output Buffer<br><\/li><\/ul>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nimport serial\nser = serial.Serial('\/samplePort\/myUSB10')\n# Clearing Input Buffer\nser.flushInput()\n\n# Clearing Output Buffer\nser.flushOutput()\nser.write(&quot;get&quot;) \n\n# Pause for 100 milliseconds\nsleep(.1)\nprint ser.read()\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\n\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-reading-data-from-arduino-boards-using-python-serial-read\"><span class=\"ez-toc-section\" id=\"Reading_Data_From_Arduino_Boards_using_Python_Serial_Read\"><\/span>Reading Data From Arduino Boards using Python Serial Read<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Arduino is an open-source electronics platform that provides easy-to-use hardware and software. <a href=\"https:\/\/www.arduino.cc\/en\/main\/boards\" target=\"_blank\" rel=\"noreferrer noopener\">Arduino boards<\/a> can read inputs from sensors, a finger on a button, or a Twitter message, which they then output in the form of motors, LEDs, or even text.<\/p>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nimport serial\nimport time\n\nser = serial.Serial('COM4', 9800, timeout=1)\ntime.sleep(2)\n\nfor i in range(50):\n    # Reading all bytes available bytes till EOL\n    line = ser.readline() \n    if line:\n        # Converting Byte Strings into unicode strings\n        string = line.decode()  \n        # Converting Unicode String into integer\n        num = int(string) \n        print(num)\n\nser.close()\n<\/pre><\/div>\n\n<div class=\"monsterinsights-inline-popular-posts monsterinsights-inline-popular-posts-golf monsterinsights-popular-posts-styled\" ><div class=\"monsterinsights-inline-popular-posts-text\"><span class=\"monsterinsights-inline-popular-posts-label\" >Popular now<\/span><span class=\"monsterinsights-inline-popular-posts-border\" ><\/span><span class=\"monsterinsights-inline-popular-posts-border-2\" ><\/span><div class=\"monsterinsights-inline-popular-posts-post\"><a class=\"monsterinsights-inline-popular-posts-title\"  href=\"https:\/\/www.pythonpool.com\/solved-runtimeerror-cuda-error-invalid-device-ordinal\/\">[Solved] runtimeerror: cuda error: invalid device ordinal<\/a><\/div><\/div><\/div><p><\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-common-errors\"><span class=\"ez-toc-section\" id=\"Common_Errors\"><\/span>Common Errors <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-python-attributeerror-module-object-has-no-attribute-serial\"><span class=\"ez-toc-section\" id=\"Python_AttributeError_module_object_has_no_attribute_Serial\"><\/span>Python <code>Attrib<\/code>ute<code>Error:<\/code> <code>'module' object has no attribute 'Serial'<\/code><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>For this problem, try renaming your project file to &#8216;serial.py&#8217;. Delete <code>serial.pyc<\/code> if it exists. After that run <code>import serial<\/code>.<\/p>\n\n\n\n<p>Furthermore, this problem occurs due to the fact that the package you&#8217;re importing has the same name as your project file.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-faqs-on-python-serial-read\"><span class=\"ez-toc-section\" id=\"FAQs_on_Python_Serial_Read\"><\/span>FAQs on Python Serial Read<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1648792271612\"><strong class=\"schema-faq-question\">Can we read multiple bytes at a time in serial read?<\/strong> <p class=\"schema-faq-answer\">The <code>.read()<\/code> function only receives one byte at a time. However, we can iterate the function to receive one byte at a time over multiple loops. This is quite redundant. The <code>.readline()<\/code> will read a complete set of bytes until EOL is achieved.<\/p> <\/div> <\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>We learned that with the help of the PySerial Module and Python Serial Read we are able to handle information from devices via Serial Ports. <\/p>\n\n\n<div class=\"monsterinsights-widget-popular-posts monsterinsights-widget-popular-posts-delta monsterinsights-popular-posts-styled monsterinsights-widget-popular-posts-columns-2\"><h2 class=\"monsterinsights-widget-popular-posts-widget-title\"><span class=\"ez-toc-section\" id=\"Trending_Python_Articles\"><\/span>Trending Python Articles<span class=\"ez-toc-section-end\"><\/span><\/h2><ul class=\"monsterinsights-widget-popular-posts-list\"><li ><a href=\"https:\/\/www.pythonpool.com\/fixed-typeerror-cant-compare-datetime-datetime-to-datetime-date\/\"><div class=\"monsterinsights-widget-popular-posts-image\"><img decoding=\"async\" src=\"https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/typeerror-cant-compare-datetime.datetime-to-datetime.date_-300x157.webp\" srcset=\" https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/typeerror-cant-compare-datetime.datetime-to-datetime.date_-300x157.webp 300w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/typeerror-cant-compare-datetime.datetime-to-datetime.date_-1024x536.webp 1024w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/typeerror-cant-compare-datetime.datetime-to-datetime.date_-768x402.webp 768w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/typeerror-cant-compare-datetime.datetime-to-datetime.date_.webp 1200w \" alt=\"[Fixed] typeerror can&#8217;t compare datetime.datetime to datetime.date\" \/><\/div><div class=\"monsterinsights-widget-popular-posts-text\"><span class=\"monsterinsights-widget-popular-posts-title\" >[Fixed] typeerror can&#8217;t compare datetime.datetime to datetime.date<\/span><div class=\"monsterinsights-widget-popular-posts-meta\" ><span class=\"monsterinsights-widget-popular-posts-author\">by Namrata Gulati<\/span><span>&#9679;<\/span><span class=\"monsterinsights-widget-popular-posts-date\">January 11, 2024<\/span><\/div><\/div><\/a><\/li><li ><a href=\"https:\/\/www.pythonpool.com\/fixed-nameerror-name-unicode-is-not-defined\/\"><div class=\"monsterinsights-widget-popular-posts-image\"><img decoding=\"async\" src=\"https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-nameerror-name-Unicode-is-not-defined-300x157.webp\" srcset=\" https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-nameerror-name-Unicode-is-not-defined-300x157.webp 300w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-nameerror-name-Unicode-is-not-defined-1024x536.webp 1024w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-nameerror-name-Unicode-is-not-defined-768x402.webp 768w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-nameerror-name-Unicode-is-not-defined.webp 1200w \" alt=\"[Fixed] nameerror: name Unicode is not defined\" \/><\/div><div class=\"monsterinsights-widget-popular-posts-text\"><span class=\"monsterinsights-widget-popular-posts-title\" >[Fixed] nameerror: name Unicode is not defined<\/span><div class=\"monsterinsights-widget-popular-posts-meta\" ><span class=\"monsterinsights-widget-popular-posts-author\">by Namrata Gulati<\/span><span>&#9679;<\/span><span class=\"monsterinsights-widget-popular-posts-date\">January 2, 2024<\/span><\/div><\/div><\/a><\/li><li ><a href=\"https:\/\/www.pythonpool.com\/solved-runtimeerror-cuda-error-invalid-device-ordinal\/\"><div class=\"monsterinsights-widget-popular-posts-image\"><img decoding=\"async\" src=\"https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Solved-runtimeerror-cuda-error-invalid-device-ordinal-300x157.webp\" srcset=\" https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Solved-runtimeerror-cuda-error-invalid-device-ordinal-300x157.webp 300w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Solved-runtimeerror-cuda-error-invalid-device-ordinal-1024x536.webp 1024w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Solved-runtimeerror-cuda-error-invalid-device-ordinal-768x402.webp 768w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Solved-runtimeerror-cuda-error-invalid-device-ordinal.webp 1200w \" alt=\"[Solved] runtimeerror: cuda error: invalid device ordinal\" \/><\/div><div class=\"monsterinsights-widget-popular-posts-text\"><span class=\"monsterinsights-widget-popular-posts-title\" >[Solved] runtimeerror: cuda error: invalid device ordinal<\/span><div class=\"monsterinsights-widget-popular-posts-meta\" ><span class=\"monsterinsights-widget-popular-posts-author\">by Namrata Gulati<\/span><span>&#9679;<\/span><span class=\"monsterinsights-widget-popular-posts-date\">January 2, 2024<\/span><\/div><\/div><\/a><\/li><li ><a href=\"https:\/\/www.pythonpool.com\/fixed-typeerror-type-numpy-ndarray-doesnt-define-__round__-method\/\"><div class=\"monsterinsights-widget-popular-posts-image\"><img decoding=\"async\" src=\"https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-typeerror-type-numpy.ndarray-doesnt-define-__round__-method-300x157.webp\" srcset=\" https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-typeerror-type-numpy.ndarray-doesnt-define-__round__-method-300x157.webp 300w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-typeerror-type-numpy.ndarray-doesnt-define-__round__-method-1024x536.webp 1024w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-typeerror-type-numpy.ndarray-doesnt-define-__round__-method-768x402.webp 768w, https:\/\/www.pythonpool.com\/wp-content\/uploads\/2024\/01\/Fixed-typeerror-type-numpy.ndarray-doesnt-define-__round__-method.webp 1200w \" alt=\"[Fixed] typeerror: type numpy.ndarray doesn&#8217;t define __round__ method\" \/><\/div><div class=\"monsterinsights-widget-popular-posts-text\"><span class=\"monsterinsights-widget-popular-posts-title\" >[Fixed] typeerror: type numpy.ndarray doesn&#8217;t define __round__ method<\/span><div class=\"monsterinsights-widget-popular-posts-meta\" ><span class=\"monsterinsights-widget-popular-posts-author\">by Namrata Gulati<\/span><span>&#9679;<\/span><span class=\"monsterinsights-widget-popular-posts-date\">January 2, 2024<\/span><\/div><\/div><\/a><\/li><\/ul><\/div><p><\/p>","protected":false},"excerpt":{"rendered":"<p>Serial ports are serial communication interfaces through which information is transferred sequentially one bit at a time. Parallel ports, on the other hand, transmit multiple &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Everything You Should Know About Python Serial Read\" class=\"read-more button\" href=\"https:\/\/www.pythonpool.com\/python-serial-read\/#more-21545\" aria-label=\"More on Everything You Should Know About Python Serial Read\">Read more<\/a><\/p>\n","protected":false},"author":28,"featured_media":22429,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[15],"tags":[5114,5113,5111,5112,5115,5116],"class_list":["post-21545","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials","tag-python-serial-read-multiple-lines","tag-python-serial-read-string","tag-python-serial-read-until","tag-python-serial-read-until-character","tag-python-serial-read-write","tag-python-serial-read-write-thread","infinite-scroll-item"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.1 (Yoast SEO v25.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Everything You Should Know About Python Serial Read - Python Pool<\/title>\n<meta name=\"description\" content=\"Python serial read communicates with external hardware. 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