Python Serial Read Arduino

Arduino Programming -- Analog Read to serial ADC pins in arduino. Although I'm using Ubuntu the library is said to work well across all operating systems. If you use Python 3 and find other issues with the code please leave a comment. Reading and counting pulses with Arduino. The Arduino board elaborates a random number and print the data via the serial port. Monitor an Arduino's serial output from Python. You can use serial port 0 to communicate with other devices that have serial ports, or to communicate with a computer over the USB port. In this blog post I will show you how to read and write data from Arduino with Python over a serial interface. This serial monitor can be even built using python. Printing data to Arduino's serial port and then reading it through Python gives the user the freedom to investigate the data further, and take advantage of the advanced processing tools of a computer, rather than a micro controller. Python Arduino servo control. Serial Serial communication is digital, which means all data is transmitted in 1's and 0's. PHP based GitHub. I am trying to send data from an Arduino into Python via USB every 100 ms. I’ve used the pyserial library, so make sure you have it, if you don’t you can type the follow command on a linux $ sudo pip install pyserial. Motivation. Serial(2,9600) connected = False while not connected: serin = ser. OK, the complete Python code to read the Arduino data from the serial port is here:. The python program recognizes button1 being pressed and displays the. pySerial Documentation, Release 3. Here is the code: The serial port sends values in the format: 512 300 513 280 400 200 On the computer side, I need to read these values, and plot them as a function of time. Communication between Arduino and Python isn't a new concept, There are many modules available for Python that help in the process. The Arduino Reference text is licensed under a Creative Commons Attribution-Share Alike 3. This can be either your sketchbook directory (usually /Arduino), or the directory of Arduino application itself, the choice is up to you. Software Setup. In the next article, I will explain about connecting Arduino and Python in a single coding and the output will be displayed in Python new world. 本稿の目的は, Python を用いて Arduino とシリアル通信を行い, 更に同通信により得た値を数値として処理できるようにすることである. There are many Linux (and Windows) programs ‘out there’ that allow you to do serial port communications. Note that you will need some Python experience to get the most out of this. Arduino-Python3 Command API. This is how fast the connection can read and write bits on the wire. read() in this case Serial. Next up, we need to read the incoming serial and if it equals '98', the Arduino will execute the blink routine. read(2)” The ARD2 receives and do “Serial. hand gesture control. Code in a sketch can use the same USB / serial port to communicate with the PC by using the Arduino IDE Serial Monitor window, or a Processing application for example. This is how fast the connection can read and write bits on the wire. But the message been date and time on windows ,cannot send to arduino. Now, on the Raspberry Pi, run the compiled code. I did not test it for Mac but the users could test the Windows procedure. Now, if you don't already have it installed, install python-serial using apt-get or Synaptic Package Manager. print() to fix this. As of now I have the two communicating with each other to some degree. The arduino setup is fairly simple and mostly follows the tutorial supplied by adafruit. Here's how to set everything up:. The Python Arduino Command API is a light-weight Python library for communicating with Arduino microcontroller boards from a connected computer using standard serial IO, either over a physical wire or wirelessly. Monitor an Arduino's serial output from Python. Just send the value over and over, and the receiver can read the latest byte to have your whole message. 2 on Windows, and on pypy3. Interfacing Arduino with Python. Sending the. Arduino reads incoming data in ASCII form. This API is forked from the original Python Arduino Command API to add support for Python 3. This Tutorial is progressive and will be updated from time to time. Before getting started with serial communication with Python, you must make sure pip is installed. I want to send two setpoints to the arduino code periodically (for instance on the minute), read them on arduino & update variables then send status info from arduino back to python periodically (such as on the :30 second). Reading Arduino serial ports with Pyserial. This tutorial shows how to use the serial port on the Teensy boards to communicate with the Arduino code running on it. Plug your Arduino to your desktop via the serial cable. Get the number of bytes (characters) available for reading from the serial port. The source was by Tod E. In the Arduino code above, the only change we need to make is to add a printout of the 'micros()' function to attach a timestamp to the data readings of red and IR reflectivity values. This is a short tutorial article on how to read the serial port values from arduino to in NodeJS. If both Xbee and Arduino transmit data at the same time then the serial signal might get corrupted and ignored by the pc (or serial to USB interface chip on the Arduino board). In order to ensure the same code is compatible in both platforms (Arduino, Raspberry Pi and Intel Galileo) we use the ArduPi libraries which allows developers to use the same code. In this opportunity we will collect tests with my new electric consumption meter PZEM-004T, making integrations with some of the most known hardware platforms ESP8266, Arduino Nano, ESP32, Arduino UNO + Shield Ethernet W5100 and Python in Raspberry Pi. The goal is to start from a very basic form of Arduino Serial communication, and progressively add or improve components so that we can ultimately transmit data from one computer to another using an XBee. Interfacing Arduino using Python We know that Arduino IDE has inbuilt serial monitor. We will be showing you how to do these serial writes by using an RS232 to TTL Adapter to create a loop. This will install a WebSocket client package that we can use to test our server with. 5 , finally using a py2exe to. This project is part two of a guide that covers basic data collection from sensors connected to a geekduino. It supports both Python 2 and 3. Serial communication is the most common low-level protocol for communicating between two or more devices. csv) b) Displaying real time graph c) Display real time numbers on terminal d) Ability…. In this post, serial communication using python programming is explained. I described the process for Linux and Windows. Below is the link for the instructions given last time. read() does not read the "most recent" byte, the bytes are pushed onto a queue (FIFO). You should see HELLO WORLD print in the Arduino IDE Serial Monitor. É interpretada e multiplataforma. The steps are simple: 1) We initialize the serial port communication via which we will be reading the Temperature values that the Arduino unit will be emitting every 10 seconds. It is only appropriate to use readString() if your data is arriving in chunks with a minimum time between each chunk. Sólo tienes que hacer que ambos (la placa Arduino y el programa Python) lean el puerto Serial y a la vez escriban en él. Make sure that your kernel has the required drivers (spi-bcm2708. This kind of message is easy. We will use the data from a potentiometer as an example for the code below since it involves only a simple analogRead(). PyFirmata2 turns your Arduino into a data acquisition card controlled by Python. 25;” through one of its serial ports (UART or I2C). println(sensorValue, DEC); and I'm using PySerial to read the values and tkinter to display them via a RaspBerry pi. The LED should turn on. Tips for reading a serial data stream in Python Posted by Cliff Brake 2009-01-09 2 Comments on Tips for reading a serial data stream in Python Interfacing with a RS232 serial device is a common task when using Python in embedded applications. For RaspPi side, I'd recommend minicom (see the command-line above) for testing, and pySerial (sudo apt-get install python-serial) for interaction. Scale bars created in python using Tkinter define the angle of the servo. I'm trying to "ping pong" info back and forth between some python code and arduino code. This can be either your sketchbook directory (usually /Arduino), or the directory of Arduino application itself, the choice is up to you. The python program recognizes button1 being pressed and displays the. I apologize if it is not the right place for my post. NOTE for Python 3 users: The code above has been written for Python 2 and I'm no more able to test RS232 connections with Python 3. The Java application is designed to find the COM port where the Arduino is connected, establish the connection between Arduino and your PC, read the data coming from the serial port and finally plot the data via a real-time chart using JFreeChart. Install Py-Serial first: sudo apt-get install python-serial. The results on the Arduino serial are as follows:. I will use a library called "pySerial". available(): get the number of bytes (characters) available for reading from the serial including examples with bluetooth and sockets for Python. It is written using a custom protocol, similar to Firmata. using the serial port to send data from python to Arduino That is why I guessed there was some kind of lock of system to put in order to write/read from serial. 1 second timeout. Serial('/dev/ttyACM0', 9600) Below is some Python code to test your connection. Control Arduino using Raspberry Pi | Arduino Raspberry Pi Serial Communication In this tutorial, you are going to learn about Arduino Raspberry Pi serial communication. 7 •terminal, console, or command prompt (depending on you OS) •Internet connection Instructions •Open the console and go to Arduino directory. Hola! Con la instrucción de python ser. They boil down to: Interpreting the data received from the Arduino is done in the Arduino class, which will make it harder to reuse the code it the future, and makes the code harder to quickly read and understand. The python is also available. This means it will not be human readable on the serial port. Now that we have successfully installed Python and pySerial, we will continue with interfacing Arduino with Python. For example, reading serial data may involve a receive function providing a character value when data is received. For this, we will be controlling the on-board LED on the Arduino using Python i. Set this parameter to whatever port your Arduino is talking on. It is written using a custom protocol, similar to Firmata. It works great, except for the fact received data is awkwardly modified (And set as constant). Starting from this section, we will be using Python along with Arduino. arduino = serial. If you want to be able to control the tuning of your radio (you don't have to, you can just set the frequency in the sketch) then optionally use a solderless breadboard to hold a pot (I used 10K linear). /arduino-serial -b 9600 -p /dev/cu. Setting up Python to work with the serial port July 30, 2009 at 07:21 Tags Python , Serial port The serial port (a. The arduino setup is fairly simple and mostly follows the tutorial supplied by adafruit. for recognizing spam emails or recommending related products. 7 and Tkinter8. In this project, we are interfacing arduino with python. Arduino Serial Port Buffer Size Mod. Blog; Sign up for our newsletter to get our latest blog updates delivered to your inbox weekly. This Raspberry Pi Serial tutorial teaches you how to utilize the board's UART feature in order to connect to a PC or to other microcontrollers and peripherals. For this you will need a basic understanding of Python and Arduino. Reading Arduino serial ports in Windows 7 with Python + Pyserial Julkaistu huhtikuu 28, 2013 marraskuu 28, 2013 kirjoittanut Petri Mäki Here i am going to show you 3 working examples on how to read Arduino serial ports with windows. The steps are simple: 1) We initialize the serial port communication via which we will be reading the Temperature values that the Arduino unit will be emitting every 10 seconds. Code in a sketch can use the same USB / serial port to communicate with the PC by using the Arduino IDE Serial Monitor window, or a Processing application for example. Upload this to your Arduino, and then connect your output device to pin 12. Since this is a tutorial on reading data from the serial port using Python, not Arduino, I recommend visiting a DHT11 tutorial to learn how to print temperature data from the sensor to the serial port (see here, or here). The Python program reading serial data sent from Arduino device is shown below: import serial import time ser = serial. init() # Open the serial connection and wait for the arduino to respond that it has # finished setting up ser = serial. COM-port, or RS232) is slowly disappearing from desktop and laptop computers, but it's still a very important tool for embedded engineers and people controlling equipment in general. Could you please suggest me which is the easier solution: to use MAVLINK lib in ARDUINO NANO and to communicate through Telem2 for example to Pixhawk, or. Python incudes a library for communicating with serial devices (including serial over USB that the Arduino uses) called pyserial. The USB connection can be used on not only uploading the sketch to Arduino board, but also exchanging data between Arduino and computer in real time. In this example the switch statement is used to identify the received command and execute the corresponding action. I wanted to write a python program to communicate with the Arduino board. For temperature sensors, the DallasTemperature library can be used with this library. The design also includes a Li-Po charging circuit that allows the Arduino MKR1000 to run on battery power or external 5V, charging the Li-Po battery while running on external power. The point at which python comes into play is when we, as users, provide the input. ROS serial consists of a general p2p protocol, libraries for use with Arduino, and nodes for the PC/Tablet side (currently in both Python and Java). I apologize if it is not the right place for my post. Hi guys, This is my first post. Koneksi arduino dan raspberry pi via serial dengan python Python baca serial dari arduino kemudian insert to mysql dan to file txt. Introduction: Python is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. Now that there is no longer a need for PHP, the Python script might as well produce a plain HTML file Listing 3. With the latest release of Arduino IoT Cloud (version 0. 3V) Serial Communication Matlab-Arduino: Serial communication between python and arduino. 2 on Windows, and on pypy3. Windows There is also a Windows installer for end users. Make Raspberry Pi and Arduino Work as One Team. Para eso vamos a usar la librera wxPython que es multiplataforma. You also saw how Firmata may be a very interesting alternative for projects that demand a PC and depend on sensor data. Before getting started with serial communication with Python, you must make sure pip is installed. 1Listing ports python -m serial. Hi guys, This is my first post. Arduino code to read lines from serial input arduino, commands, read serial port. I would like to read the data printed by an Arduino in Blender but the Arduino is reset each time Blender reads the data. The Arduino once programmed is a standalone hardware,so you can make projects with the Arduino powered Atmega as its core. I'm using 'Python 2. ' on element14. Strings are also useful for storing the. ESP32 / ESP8266 Arduino: Serial communication with Python The objective of this post is to explain how to establish a Serial connection between a Python program and an Arduino program running on the ESP8266 and on the ESP32. In this blog post I will show you how to read and write data from Arduino with Python over a serial interface. Estou tentando comunicar um código python e o arduino, porém ele não esta retornando o valor para acender o LED. Buy Arduino Python Serial Communication: storing data into TXT file from Arduino no sd card needed (Electronics Book 0): Read Kindle Store Reviews - Amazon. This allows a user to. En este tutorial, les enseñaré cómo utilizar Python en conjunto con Arduino y la comunicación serial. 入門-使用Python和Arduino溝通 安裝完Python現在要來安裝pySerial這個函式庫來read & write Serial. Documented ROS Serial is a point-to-point version of ROS communications over serial, primarily for integrating low-cost microcontrollers (Arduino) into ROS. Personally, in a Robotics university course I attended while I was Erasmus student at the ULPGC, I already used Python to interact with a didactical robot using serial communication. Software Setup. Communication between Arduino and Python isn't a new concept, There are many modules available for Python that help in the process. /* * circuits4you. The read() method provides an output value at the specified Arduino pin. To use the Arduino serial port, Serial. The line "ser. The Arduino just sat at the end of the USB and read commands that were sent to it, and then re-sent them on a serial wire to the LCD. Make Raspberry Pi and Arduino Work as One Team. 1Listing ports python -m serial. In this article, I'm going […]. A package is available under the name “python-serial”. It is also possible to add a regexp as first argument and the list will only include entries that matched. The plan was as follows: to capture the temperature in my living room using a temperature sensor using the arduino, make the arduino write to the Serial port to the RaspberryPi, have a Python program running in the RaspberryPi that reads from the. It provides backends for Python running on Windows, OSX, Linux, BSD (possibly any POSIX compliant system) and IronPython. Good evening, I am currently working on a project and would like some help since I have been trying to solve the following problem for 2 days =(I need my Python programme to send a command, then some characters to arduino. The LED should turn on. I have determined that the raspberry serial port is /dev/ttyUSB0 and from the Python console I can send the following commands one at a time:. In order to use the Serial Plotter tool you need to download the latest version of the Arduino IDE, at the time I’m writing this blog post is version 1. 1 Answers 1 解决方法. Next, if I push Button2, Image1 will disappear and Image2 will displayed. First code is basic "Hello world" with arduino and python Code for Arduino: Hello world with serial ports. Python seems to be sending the data, however I am not sure if it's correct. Python serial communication with arduino using JSON serial communication with arduino using JSON head and the tail in order to tell python to treat the serial. readline() connected = True. I am trying to read an ads1115 monitoring a current shunt so it's reading in millivolts. Example: (time n) a device push the byte 0x01 in the arduino (time n+1) a device push the byte 0x02 in the arduino (time n+2) a device push the byte 0x03 in the arduino <-- most recent (time n+3) arduino call Serial. - I made a TCP/IP demo in Demo 8: How to use TCP/IP with Arduino ESP32 so in this tutorial I will make a demo with UDP and apply tutorial How to make IoT testing/debugging application (TCP, UDP, HTTP, MQTT) using Python for testing. 7 •terminal, console, or command prompt (depending on you OS) •Internet connection Instructions •Open the console and go to Arduino directory. The following tutorial will demonstrate how to Read values from a Text file (. I have an Arduino UNO R3 + bluetooth HC-05 and want to transmit. Now, on the Raspberry Pi, run the compiled code. Read write in a file (WARNING: the file will be deleted when the script exits). read() in this case Serial. The HX711 board can be powered from 2. I’ve used the pyserial library, so make sure you have it, if you don’t you can type the follow command on a linux $ sudo pip install pyserial. It provides backends for Python running on Windows, OSX, Linux, BSD (possibly any POSIX compliant system) and IronPython. 2 for linux has issues. You should disconnect the Arduino from the Pi if you connected it, as we need to find out the port name. The point at which python comes into play is when we, as users, provide the input. We will see How to read video, display video and save video, How to capture from Camera and display it, we will see these functions : cv. This method also allows the user to bridge the gap between live data and laboratory measurements. Could you please suggest me which is the easier solution: to use MAVLINK lib in ARDUINO NANO and to communicate through Telem2 for example to Pixhawk, or. Control Arduino using Raspberry Pi | Arduino Raspberry Pi Serial Communication In this tutorial, you are going to learn about Arduino Raspberry Pi serial communication. You can use serial port 0 to communicate with other devices that have serial ports, or to communicate with a computer over the USB port. Q&A for Ubuntu users and developers. In this opportunity we will collect tests with my new electric consumption meter PZEM-004T, making integrations with some of the most known hardware platforms ESP8266, Arduino Nano, ESP32, Arduino UNO + Shield Ethernet W5100 and Python in Raspberry Pi. 1Listing ports python -m serial. Arduino Python Communication Via USB: Sometimes when working on an Ardunio project, it is necessary to send data back and forth between a computer. So, now we have got the Serial Port on Arduino UNO which we know are at pin # 0 and pin # 1, now in the next part, we are gonna have a look at How to use Arduino Serial Read and get data from this Serial Port. 1 Answers 1 解决方法. I need to read a value every 5 seconds. As mentioned in previous classes, the codes being uploaded to the Arduino may have some limitations regarding the functionality. A character may basically be any symbol on the keyboard (0 to 255). The resulting download will be a exe file which can be directly installed. Arduino and Python-based project that will help us read the sensor values and plot it on Python. arduino Sign in or create your account; Project List "Matlab-like" plotting library. There is a chance that the port is still closed when the Arduino responds, in which case the data will be lost. It will take a few seconds to connect to. I bought both a while ago but didn’t get much chance to play with them. Software Setup. urdf related doubt. Whatever that is should be what is in quotes in line 3 of the Python program. I am relatively new to raspberry and I'm trying to connect it to an Arduino using the raspberry USB. A Real Time Clock design (DS1307) with a PIC microcontroller. You also saw how Firmata may be a very interesting alternative for projects that demand a PC and depend on sensor data. To read a byte from the serial port, we call the read method of the Serial object. Then, the baud rate needs to match as well. write(b'sending string to Arduino') >>> ser. But this could be one of the easiest way to get them talking, because hardware that required is minimal: all you will need is a micro USB cable that comes with the Arduino. Introduction To use Python as a graphical interface for an Arduino powered robot, programmatically read the USB with the pySerial library. Simple Arduino Serial Monitor - Python. Is this serial data meant as logging? Maybe you should have a logging module then, represented by a Logging class. import serial import time import os c. Right now, I have serial data being sent from the arduino to a raspberry pi with python. The source was by Tod E. VideoCapture(), cv. With the latest release of Arduino IoT Cloud (version 0. We will see How to read video, display video and save video, How to capture from Camera and display it, we will see these functions : cv. Arduino is a micro-controller which is very popular because of its ability to control the hardware. readline() time. println(opcode);" with no problem and I can read it on my Serial Monitor from the Arduino. Lab: Two-way (Duplex) Serial Communication using an Arduino and Processing Introduction In the first serial lab , you sent data from one sensor to a personal computer. Another version of the project uses Python instead of PHP. Así que, sin más te invito a que des un vistazo. Use Serial Communications with Arduino Hardware. Discover (and save) your own Pins on Pinterest. That timeout is, by default, 1 second. Using the program on this should turn the LED on, and report LED Activated back via serial to our python program. /arduino-serial -b 9600 -p /dev/cu. In the while loop, our program will print each line it reads from the stream. In this tutorial, we are going to learn how we can install python on our computer and how to use it with Arduino,It allows us to send data back and forth between a computer though Arduino's serial. Circuit diagram. init() # Open the serial connection and wait for the arduino to respond that it has # finished setting up ser = serial. How to pass data to a node from an arduino board using rosserial? descartes no joint solution. It provides backends for Python running on Windows, OSX, Linux, BSD (possibly any POSIX compliant system) and IronPython. We will create a basic Teensy project with Visual Studio and modify it to input and output data via the USB serial port provided by the Teensy Arduino core. In the next article, I will explain about connecting Arduino and Python in a single coding and the output will be displayed in Python new world. After seeing the problems and struggling with RXTX and JSSC for a while when I was working with the Arduino, I developed the JAVA Arduino Communication Library While I developed the library with the Arduino board specifically in mind, it can really be used to read and write effortlessly with any serial device. I have determined that the raspberry serial port is /dev/ttyUSB0 and from the Python console I can send the following commands one at a time:. Download the Arduino IDE version 1. sudo apt-get install minicom python-serial. Interfacing Arduino with Python. Arduino-Python3 Command API. 過去の関連記事: openFrameworks, serial通信, arduino, 1 byte, 2 bytes, multi-data. Printing data to Arduino's serial port and then reading it through Python gives the user the freedom to investigate the data further, and take advantage of the advanced processing tools of a computer, rather than a micro controller. Python seems to be sending the data, however I am not sure if it's correct. println(sensorValue, DEC); and I'm using PySerial to read the values and tkinter to display them via a RaspBerry pi. The Arduino sketch is very simple - it just reads the values from analog pins A0 and A1 (in the range [0, 1023]) and prints it to the serial port. We will see How to read video, display video and save video, How to capture from Camera and display it, we will see these functions : cv. NET component and COM server; A Simple Scilab-Python Gateway. Here is the code: The serial port sends values in the format: 512 300 513 280 400 200 On the computer side, I need to read these values, and plot them as a function of time. Let's assume it's COM4 for now. Currently it sends 3 bytes per execution. Python + Arduino: GUI Control through Serial I have created a basic gui program that allows me to move the arm to particular positions by controlling the angle of the servos. There is a chance that the port is still closed when the Arduino responds, in which case the data will be lost. A little program made with an rgb led. Therefore we can easily communicate with the Arduino serial interface with python. Recently I started learning python and was amazed by its simplicity and capabilities. But this could be one of the easiest way to get them talking, because hardware that required is minimal: all you will need is a micro USB cable that comes with the Arduino. This kind of message is easy. The Python Arduino Command API is a light-weight Python library for communicating with Arduino microcontroller boards from a connected computer using standard serial IO, either over a physical wire or wirelessly. py code directly from the command line. Play Sound through Serial communcation (from Laptop) on speakers connected to AD5669 using Arduino: Arduino and ESP8266-01 serial communication (5V to 3. Serial('COM4', 9600) while True: value. Sending the. Copy and paste the code into the file. I also use "light" Debian programs for Raspberry Pi ported over from Damn Small Linux and Puppy Linux because as a PC Pi is slow and weak. Next, open face. An infinite loop like the Arduino loop function can be done in Python via a while loop with the condition set to True so that it never exits the while. The main goal of this project is to build a simple interface to use Arduino as a 'sensors hub' and integrate it with other more complex devices like Raspberry PI or and PC. A string is a series of characters. You can vote up the examples you like or vote down the ones you don't like. But, if you've done any Arduino development before, those may not be all that exciting. The point at which python comes into play is when we, as users, provide the input. You can use serial port 0 to communicate with other devices that have serial ports, or to communicate with a computer over the USB port. What is the benefit of using LIDAR and Encoders vs Indoor Beacons. In order to use the Serial Plotter tool you need to download the latest version of the Arduino IDE, at the time I’m writing this blog post is version 1. Python Arduino Command API. Hi all, I am using rosserial_python to talk to the arduino Mega controller. As of now I have the two communicating with each other to some degree. Read about 'Arduino Bluetooth send data to Python stuck' on element14. How would the python and arduino codes change. readString() will read characters from the serial (or other Stream) device until a timeout occurs. 5 A serial port driver library for Android Once drivers are loaded I could use python serial library to. Check on which port your Arduino is communicating with the PC. And last one serial communication. Sending the. It is also possible to add a regexp as first argument and the list will only include entries that matched. Now, launch the program to read messages sent on the serial port from your device (for example an Arduino). As I have mentioned at the end of my last post, I wanted to take a look into the prototype. you can read the serial communication from the ATmega by calling: If you’ve worked with Python or Javascript, you. 1s the signal get from analog 0. Hello, i know this tread is a little bit outdated but i need help with implementing serial (arduino) in blender. In this blog post I will show you how to read and write data from Arduino with Python over a serial interface. Play Sound through Serial communcation (from Laptop) on speakers connected to AD5669 using Arduino: Arduino and ESP8266-01 serial communication (5V to 3. This will install a WebSocket client package that we can use to test our server with. Next up, we need to read the incoming serial and if it equals '98', the Arduino will execute the blink routine. txt) or read online for free. Monitor an Arduino's serial output from Python. Open the arduino Serial Monitor and set the bitrate to 115200. For more info about used EEPROM AT24C01A, see attached datasheet. The easiest way to install  PySerial is by using pip, the Python package installer. close() Temperature and. This should be platform-independent, windows, mac, linux etc. A package is available under the name “python-serial”. Basically when the Arduino is listening through its serial port, in the same time the python script will send some information to him. Next, if I push Button2, Image1 will disappear and Image2 will displayed.