learning python with raspberry pi pdf

0. PrefaceRaspberry Pi can be painless starter Linux, which controls the Raspberry Pi gpio through command and shell scripting. With this article you can familiarize yourself with multiple Linux commands and familiarize yourself with the shell scripting methods and have a basic understanding of IO redirection. I learned in the process of

Environment: Raspbian-stretch (2018-06-27)Raspberry Pi: 3 generation B Type1, Raspberry Pi equipment, need to be in the field can also have independent networking capabilities, it is necessary to use the Internet of Things module.The SIM868 communication module for micro-snow is used here, such as:2, will SIM868 insert

Recently began to learn Python, the teacher let the deployment of the Python environment, deployed on the x86 platform is no pressure, think can not be a set of Raspberry Pi. Because using the Raspbian system and Debian is almost a problem when installing Mysql-python. Now r

) {});}); Yes, just the three lines of code ... 1th, 2 line to all the buttons (button) bound a click of the event, the third line calls the jquery post method to send This.id (the ID of the clicked button), sent to "/cmd" This path, at this time, our Python code of the second route to work, Received the ID of the clicked button on the webpage, and printed out the "pressed button: XXX" Of course, here are a few if statements to judge, you can follow

On-line tutorials, general Python with Rpi.gpio to control the Raspberry Pi Gpio, and C + + generally use WRINGPI library to operate Gpio,rpi.gpio too simple, many advanced features do not support, such as I2C/SPI library, etc., but also lack of high-precision timing and other advanced features. In contrast, WIRINGPI is rich in functionality, but in fact WRINGPI

障碍时直行 if (in_left == GPIO.LOW): down() time.sleep(1) turn_right() time.sleep(1) n = n - 1 continue if (in_right == GPIO.LOW): down() time.sleep(1) turn_left() time.sleep(1) n = n - 1 continue if (in_right == GPIO.LOW in_left == GPIO.LOW): down() time.sleep(1) turn_right() //如果两侧都有障碍，就右转（个人喜好） time.sleep(1) n = n - 1 continuestop()

The Raspberry Pi does not have a battery, so the system time stops after the power outage, until you start the timer again.Because the project needs to use local time, the accuracy requirements are not high do not want to toss (if you need high precision, need to install NTP), so consider using Python script synchronization Baidu time, accuracy error is small in

Python implements the example code of Raspberry Pi WiFi disconnection automatic reconnection, pythonwifi Enable Automatic reconnection of Wi-Fi disconnection. The principle is to use Python to monitor whether the network is disconnected. If the network is disconnected, restart the network service. 1. Put the

How to enable I2C device http://www.cnblogs.com/hangxin1940/archive/2013/04/02/2997077.html and build a python I2C Development Environment http://www.cnblogs.com/hangxin1940/archive/2013/04/03/2997094.html Quick2wire is a python library used for I2C communication on Raspberry Pi. It allows non-root users to read and w

1: Download several dependencies:Update software Source: sudo apt-get update/upgrade;Install the dependencies in turn:sudo apt-get install build-essentialsudo apt-get install CMakesudo apt-get install Libgtk2.0-devsudo apt-get install Pkg-configsudo apt-get install Python-dev python-numpysudo apt-get install Libavcodec-dev libavformat-dev libswscale-dev libjpeg-dev libpng-dev libtiff-dev Libjasper-dev2: Get

is the default toolchain; The *.O file is generated by the *.c file with the same name.Then enter make in the console to generate the executable file.Send me a compiled executable file for Raspberry Pi:Scp-r ~/catkin_ws/src/beginner_tutorials/src/hello-world [Email Protected]:/home/ubuntu"SSH login Execution" after landing into the directory where the executable file, modify the execution permissions of the file.sudo chmod 755 hello-world./hello-worl

Raspberry Pi advanced GPIO library, wiringpi2 for python Use note (3) GPIO operations, gpiowiringpi2 The core function of the GPIO library is to operate GPIO. GPIO is the "general input/output" interface, such as lighting up an LED or relay, or using iic spi 1-wire and other protocols, reading and writing data are all useful for GPIO. It can be said that without

Raspiban wheezy is pre-installed Python3 is 3.2.3, this tutorial lets you upgrade to 3.4.1 (currently the latest version).I used a B-plus Raspberry Pi, which was released in 2014-06-20 by Raspbian Wheezy.The entire Raspbian system is upgraded to the latest, and may require a reboot after the upgrade.1 sudo Update 2 sudo upgradeLet's do it in the home directory of the current user, go to this directoryCD ~th

This article describes how to use Python to easily implement Raspberry Pi's WEB control. If you need it, you can refer to it to show you the effect. I feel very satisfied. Please continue to read the full text: Knowledge used: Python Bottle HTML Javascript JQuery Bootstrap AJAX, of course, linux I'm going, so many ...... Let me start ...... First paste the fin

Raspberry Pi advanced GPIO library, wiringpi2 for python using notes (4) practice DHT11 decoding, gpiodht11 DHT11 is a temperature and humidity sensor with calibrated digital signal output. Precision humidity +-5% RH, temperature +-2 ℃, range humidity 20-90% RH, temperature 0 ~ 50 deg C. The encapsulated modules I bought contain the pull-up resistor. After che

Beginner Python , try to change the program that was previously written in C on the Raspberry Pi. Python version of the. Four-bit common yin digital tube and Raspberry Pi Circuit connection method is as follows:A ~ p--------------

The hand has a CCD Camera (Barcode reader/scanner Module), it is through RS232 communication, with the RS232 to the USB adapter to connect the Raspberry Pi, you can complete the hardware connection. For serial communication, it can be realized by pyserial.First, install Pyserial:Download the latest version of the installation package from Https://pypi.python.org/pypi/pyserial and complete the installation w