raspberry pi relay module

First, pre-preparationReach the goal:Using Rapberry Pi to drive MQ-2 smoke Alarm module, the information is collected and extracted, and then Zabbix monitoring system to collect and process information collected.1. Prepare the Raspberry Pi (Raspberry

[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 first I refused. This article shows how to deploy ndoe compiled execution files. The download directory on the node official website con

Raspberry Pi (Raspberry Pi) builds a Linux system (PiLFS) from scratch (II), raspberrypilfs 7. Build a temporary system 1. General Compilation Guide A. Check whether the settings are correct.LFSEnvironment Variable echo $LFS B. Assume that you have correctly set the host system requirements and symbolic links. C. For e

, and transfer the water to the malt barrel, and the entire electronic component is controlled by raspberry.Building my electronic winemaking system and automating as much as possible means that I need the following components: A 5500-watt electronically heated alcohol container (HLT) A 50-foot (0.5-inch) Stainless steel coil (heat exchange recirculating mash system) that can be placed in a heated alcohol container A 5500-watt electric kettle Multiple solid sta

to the kernel. 1) added the ILI9325 platform definition in the arch/arm/mach-bcm2708/bcm2708.c File static struct platform_device bcm2708_ili9325 = {.name = "ili9325",.id = 0,};/*************************/bcm_register_device(bcm2708_ili9325); 2) modified the drivers/video/Kconfig file and added: config FB_ILI9325tristate "ILI9325 connected to Raspberry Pi GPIO support"depends on FBselect FB_SYS_FILLRECTs

/ BitTorrent Server :/http/blog.snapdragon.cc/raspberry-pi-as-bittorrent-server/ Web Cam Server :http://www. raspberrypi.org/archive S/tag/webcam Weather Station :http//blog.retep.org/2012/07/30/ installing-a-usb-weather-station-on-a-raspberry-pi-part-1/ BitCoin Wallet:https://bitcointalk.org/index.php?topi

, and intelligently judge with shell scripts to synchronize files from the remote server.And my other Raspberry Pi is a battle-hardened, once used as my Git repository, to be honest, the memory is a bit overwhelming, the installation and deployment of Gogs through Docker can be said to be the most agile git warehouse building. Of course, I'll give the veteran a temperature, humidity sensor, push to the serv

:).-----------------------------to spit out the installation experience-----------------------------------------------------Today, there is a project to do a self-running measurement system, thinking about how to implement automatic measurement when not connected to the PC. The previous day has been the Python GUI, so think of the idle raspberry Pi, perhaps with an HDMI monitor can be used. Friday, while pl

Brief introductionA simple device for the control sensor of the terminalFeatures that can be implementedIt can realize real-time monitoring of Raspberry Pi terminal by mobile phone, camera gimbal manipulation, intrusion alarm, temperature detection, light control, automatic light control and other functions.Equipment picturesRunAll the hardware that needs to be used Router

Administrator, the password is the password which we set when writes the system.After successful login, we can see the various system data, as well as the Operation menu, for example, can see the current CPU, memory, IO usage in the Performance menu under processes.Currently, we are using a network cable to log on to the IoT, which is a bit cumbersome, and raspberry Pi 3B itself support WiFi

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 communication development environment (1) Install Py

Configuring the camera system Picam17.3 Picam Operation Guide17.3.1 Basic Operation17.3.2 Advanced DevelopmentThe 18th chapter "small" Application "big" chowder18.1 GPS Locator18.1.1 Installing and configuring the GPS module18.1.2 GPS Module Basic operation18.1.3 using GPS module to record trajectory18.2 Digital Photo Frame18.2.1 installation Qiv18.2.2 using QIV18.3 Ra