raspberry pi relay control

Sonic pi is an open-source programming environment designed to explore and teach programming concepts by creating sound production music processes. The Code executed by sonic pi is based on Ruby, which is a beautiful and concise programming language. This means that you can write a lot of code without having to worry too much about syntax and braces-though important for complex programs. 1. Getting Started

machines" as a control center. In terms of smart devices, we can use Raspberry Pi to implement a Wi-Fi car, self-made laptops, smart switches, monitoring and shooting, and even smart robots. Second, make full use of each piece of hardware to provide "soft" services, in terms of soft services, you can use Raspberry

First, install the Raspberry Pi and Arduino development environment 1, Arduino development environment in the previous article has been explained that the need for friends can see "Arduino Control two motor Movement" this blog post. 2. Building a Raspberry Pi serial communi

statistics14.2 Humidity Monitoring14.2.1 Installing and using the DHT11 humidity sensor14.2.2 Weibo sync Live14.3 atmospheric pressure and precipitation monitoring14.3.1 Installing and using BMP085 barometric pressure sensor14.3.2 Installing and using a raindrop sensorThe 15th chapter on intelligent Home15.1 Electric Light Intelligent15.1.1 Installing electronic Relays15.1.2 Local use of code control15.1.3 Web Remote Control15.2 Home Electric Intelligent15.2.1 Installing and configuring an infr

For many IoT applications, using a Raspberry Pi to build an intelligent gateway is no longer appropriate, but the market of those "XX smart", "XX center" direct seconds kill it!Hardware needs to be extended: SD card, WiFi, Bluetooth, USB hub,tft display.What software is needed: scripting engine, remote login service, Web server, messaging server, processing server, forwarding server, Smart Display software,

people a different sense of motivation and sense of accomplishment than virtual machines. Of course, in terms of playability, Raspberry Pi can also do a lot of interesting things. Daoteng aircraft, remote control toy car, controlled home appliances, control access, make super computer and so on. The main thing is to b

-disk-utilityIn the graphic environment. Then insert the microSD card back to Raspberry Pi 2 and start the system. At the first startup, it will automatically expand the partition to occupy the entire SD card.Kodi Chinese interface OpenELEC is equipped with the latest Kodi 14.X development version, default skin, English interface. If you connect to a TV through HDMI, you can directly use the TV remote

service on Instapush and install the mobile app Connect the electromagnetic sensor door to Raspberry Pi Install the pycurl Library Load python code Run a python application Test to get push notifications Create a push service on Instapush and install the mobile app To process push notifications, I use a free push service named Instapush. Instapush has free apps on iOS and Android, and this platform al

Name This step is not required, but I strongly recommend that you plan to use multiple Raspberry Pi devices if you are working.Sudo leafpad/etc/hostname Enter the desired host name and save the file. My host name is "gitpi ".Then, enter the following command:Sudo leafpad/etc/hosts Replace all "raspberrypi" with the new host name you entered in the previous step. Then restart your

We have explained in detail the Raspberry Pi control ultrasonic module ranging (http://www.cnblogs.com/yuemo/p/8888342.html) and ultrasonic control buzzer module audible (http://www.cnblogs.com/ yuemo/p/8906111.html).Today we'll see how to apply all two modules and make an anti-theft device.First look at the connection

0 PrefaceThis article explains how to install Mosquitto on a Raspberry Pi. In this article, two simple examples of how to use the MQTT protocol for message subscriptions in the Raspberry Pi include the mosquitto_sub instruction to implement message subscriptions and Paho-python extension libraries to enable remote

for processing Ros client and user interface. The PC needs to is on the same LAN with Raspberry Pi on the robot. You can log in the Raspberry Pi via SSH.Joy pad (Optional)If you had a joy pad for PC, you can use it to control the robot smoothly. But don ' t worry, if you do

share your wireless network card's Internet resources with your local connection. Take Win7 system as an example, start--Control panel--Network and internet--network and Sharing Center--View network status and tasks--Change adapter settings, locate wireless network connection right-click "Properties", on the Sharing tab, select "Allow other network users to pass Connect (N) "option over this computer's Internet connection, click OK. 3. Find the IP a