node red raspberry pi tutorial

[Raspberry Pi] install the node environment and Raspberry Pi node Environment This article is not about node compilation and installation. It is said that it takes a long time, so at fi

Python and OpenCV installation tutorial on Raspberry Pi 2 or Raspberry Pi B +, pythonopencv My Raspberry Pi 2 just arrived yesterday. This guy looks cute. This guy has a 4-core MHz proc

This article describes how to install Python and OpenCV on Raspberry Pi 2 or Raspberry Pi B +. it is based on the GTK library and uses Python2.7 and OpenCV2.4.X as an example, if you need a friend, refer to my Raspberry Pi 2 which

we have already used the official image to set up the Raspberry Pi development environment, it can be said to be able to use the application, but if the official kernel has some features that do not meet our needs or need to partially crop the kernel, then we need to crop the Raspberry Pi kernel, Here we teach you how

Split Memory allocation, select how much memory to GPU A4 ssh to run SSH login, it is recommended to open an account this option, after the operation of Pi convenient, network on the line, do not open the screen. A5 SPI whether the SPI core driver is enabled by default, the novice will have no control. A6 Audio Select whether the sound is output to the analog or HDMI ports by default 0 Auto Selection 1 Force 3.5mm (' headphone ') Jack force

Raspberry Pi 3+ros Kinetic version Remote PC +ros Indigo version First turn on the Raspberry Pi camera function sudo raspi-config Start Camera function and restart the Raspberry Pi. Open the

[Raspberry Pi] installing the node EnvironmentThis article is not about node compilation and installation. It is said that it takes a long time, so at first I refused. This article shows how to deploy ndoe compiled execution files. The download directory on the node official

This article is not a compiled installation of node, it is said to take a long time, so at first I was rejected. This article shows how to deploy the compiled execution file for Ndoe. Node's official Web download directory itself has compiled executable files for arm. Address is here: HTTPS://NODEJS.ORG/DIST/V4.2.1/Choose the right version Download the appropriate version for the Raspberry

500ms} led.state=0;}//led.close ();//Process.exit (); //Exit ProgramThere is also a component cur.jsvarHTTP = require ("http");//Utility function that downloads a URL and invokes//callback with the data.function Download (URL, callback) {http.Get(URL, function (res) {vardata =""; Res.on ('Data', function (chunk) {data+=Chunk; }); Res.on ("End", function () {callback (data); }); }). On ("Error", function () {Callback (NULL); });} Exports.download= download;Copy 3 files to a self-built

can see right Raspberry Pi already has hellowd file5.3 Executive HellowdThe Raspberry Pi external display can be directly CD to the Hellowd path, and then./hellowd Executioncan also be executed on the PC via the Putty login Raspberry PiThe default login

40 Gpio on a Raspberry Pi is the best thing to play.They can be directly controlled by c,/c++, Python, Java and other languages.Now, let's see how to do the same thing with node. js.Before you try, install node. js, and move to: 1. Prepare the Test foldermkdir/home/pi/docume

sprinkler and an electric rice cooker. Therefore, the Raspberry Pi Plus relay can fully extend its control over external devices. Dry-reed Relay refers to the reed relays, which are compared with the general relays, and their switching speed and life are greatly improved. The use of the relay is very simple, only the level control of its pin to complete the control of the relay. After entering the source

Because the Raspberry Pi is an arm architecture, there is no binary package download for ARM architecture on node. js. Tried using apt package to manage installation and direct node. JS source code compilation installation (compiled for four or five hours ...) ), failed to report an illegal instruction error, or due to

Adafruit Raspberry Pi Tutorial Lesson five: Using the control cableTime 2014-05-09 01:11:20 geek Fan Original http://www.geekfan.net/9095/ Theme Raspberry Pi MacOS Linux This article is translated from adafruit.com by Geek fan-boyd Wang. Welcome to the Geek Translation team

people do not have a router around, in fact, you can also use a network cable to the Raspberry Pi and computer directly connected. The above two methods are to find the IP address of the Raspberry Pi, with advanced ipscanner tool scanning (own network up and down bar), the specific reference I give the

One, I use the various parts:(1) Raspberry Pi(2) SD card(3) Cable(4) Router(5) a notebookSecond, download http://www.raspberrypi.org/downloads from the official website, I download is Raspbian JessieThird, the Raspbian burned to the SD card, I was in Windows under the operation:Download the Win32diskimager and burn the Raspbian image to SD card;Iv.. Insert the SD card into the

Use Raspberry Pi to implement chatbots. Raspberry Pi is used to implement a conversation robot. recently, Raspberry Pi is used to implement a robot that can communicate with people. RaspberryPi is the world's most popular micro-co

at the time of the connection, it's simple to do, just add the library to the. Pro file, as shown in:And then compile again, under normal circumstances will be compiled successfully, into the project directory, we will find a very long name of the folder, which is the QT in the compilation of the time produced by some intermediate files, of course, we compile the generated executable is also in the inside, the name and work name, open the console, Enter the directory with the CD command. and th

Implementing a dialogue robot with Raspberry Pi Recently, we have implemented a robot that can talk to people with Raspberry Pi, a brief introduction. Raspberry Pi is the world's most popular micro-computer motherboard, is the le

(); Show An error if there is no Gpio controller if (GPIO = = null) { pin = null; Gpiostatus.text = "There is no GPIO controller on this device."; return; } Pin = Gpio. Openpin (Led_pin); Show an error if the pin wasn ' t initialized properly if (pin = = null) { Gpiostatus.text = "There were PR Oblems initializing the GPIO pin. "; return; } Pin. Write (Gpiopinvalue.high); Pin. Setdrivemode (gpiopindrivemode.output); Gpiostat