Step 1: Connect the PIR Sensor Connect the PIR sensor with cables. We use the following colors: red… +5V black… GND (ground) yellow… OUT (signal) Step 2: Connect the Breadboard Have a look here on how to connect the breadboard.…
A breadboard is a protoyping board to test out simple electrical circuits. It is sometimes easier to connect components to the Raspberry Pi with a breadboard, especially with an extension cable. Step 1: Connect Breadboard and Connector Push the connector…
Leaflet is a Javascript library used to make interactive maps on your website. This is the code that decides what map to use, and what place to show at the beginning. Just put it in a script tag in your…
HTML (hyper text markup language) is a markup language for describing web documents. This means it uses tags to describe and set up the content of the page. A tag can be stand-alone but usually comes in pairs, where ‘<>’…
Balsamiq is a tool for creating wireframes, lofi mockups and crude prototypes. It can be downloaded as a desktop application on OS X and Windows. It also comes in a web app version, specially targeted at teams. There is also…
1. Prepare the Webpage In order to publish the webpage via dropbox, first prepare the html document along with the style sheets, scripts, images and other required documents. Consequently, run the webpage locally on your machine, and save it as…
This recipe shows the necessary steps to run Node-RED and MongoDB on a Raspberry PI 2 in order to gather data and make them available through an open API. Specifications Raspberry PI 2 Model B, 1GB Raspbian Jessie on an…
Basic Concepts MQTT: • Important for constrained devices and unreliable networks. • Used to send messages with very low overhead. MQTT over WebSockets client: • Enable a browser to send and receive MQTT messages. • A browser that supports WebSockets…
Exporting a Runnable Jar from Eclipse You can create a runnable jar file from an Eclipse project that contains all files necessary to run an application. Select File / Export… Select Java / Runnable JAR file The export wizard opens:…
Shutting Down and Rebooting Gently Just unplugging power may leave the file system corrupted. To properly shutdown, use the following commands: sudo halt or, to reboot: sudo reboot Using a Monitor Connected to the Pi Simply start your Pi with…