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Tag archive for: Single Board Computer

Getting started with an Nvidia Jetson TX2 developer kit

When we have the right amount of data, machine learning enables us to use them for building a model that can provide answers for future questions.

Compared to CPUs, a GPU is better suited for us to build that model. This is because a GPU is very good at performing much more computations in parallel.

Although you can build your own GPU rig for machine learning, an Nvidia Jetson TX2 developer kit is easier to setup and more energy efficient. Therefore, I got myself a Nvidia Jetson TX2 developer kit to ride on the machine learning bandwagon.

In case you are wondering what is in the box and how to get started with an Nvidia Jetson TX2 developer kit, read on to find out more.

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How I setup a Raspberry Pi Zero W CCTV camera with motionEye and Raspbian Stretch Lite

I had previously built a Raspberry Pi Zero W CCTV camera with motionEyeOS which was connected to the Wifi network of my old DLink router.

After I started using Linksys AC1900 Dual Band Wireless Router as my home router, I could no longer connect to that Raspberry Pi Zero W CCTV camera.

After reinstalling motionEyeOS a couple of times on my Raspberry Pi Zero W, I determined that motionEyeOS is not suitable for this new Wifi network.

On the other hand, my setup of WordPress on Raspberry Pi Zero W with Raspbian Stretch Lite, nginx, mariadb and PHP was able to connect to my new Wifi network, even after multiple system reboots.

Hence, I figured that if I wanted to build a Raspberry Pi Zero W CCTV camera that can connect to my new Wifi network, I could use Raspbian Stretch Lite as the base operating system and install motionEye for the web frontend to view the camera footage.

This post documents how I setup a Raspberry Pi Zero W CCTV with motionEye and Raspbian Stretch Lite.

How I setup Jenkins on my Raspberry Pi 3 with Raspbian Stretch Lite

Jenkins is a renowned open source automation server that can help offload programmers from performing repetitive tasks like:

  • running unit tests to make sure new code does not break existing codes.
  • compiling and packaging the binaries from codes and dependencies.
  • deploying new binaries to testing servers.
  • checking whether production server is up and running.
  • and etc.

If you have a Raspberry Pi 3 and you want to automate some of the tasks for your side projects, you may want to consider setting up Jenkins on your Raspberry Pi 3 with Raspbian Stretch Lite as the operating system.

This post documents how I setup Jenkins on my Raspberry Pi 3 with Raspbian Stretch Lite.

How to setup Raspbian Stretch Lite on Raspberry Pi Zero W to run Python 3 applications

With Wi-Fi included, the Raspberry Pi Zero W is very useful for implementing embedded projects that require Internet connection.

Apart from using the Raspberry Pi Zero W for CCTV surveillance, we can run customized Python 3 applications on a Raspberry Pi Zero W for various use cases.

Pairing the official operating system for Raspberry Pi with Python 3, we will be able to get a versatile computer to do our bidding.

Anticipating the need to setup a version of Raspbian Lite on Raspberry Pi Zero W for future Python 3 projects, I created this post to document the steps of how to do so with Raspbian Stretch Lite.

How to host multiple websites from home

A website is a collection of related web pages, including multimedia content, that people can access anytime from anywhere of the Internet.

A website facilities the exchange of information between multiple parties. For instance, when you read the content of this page, I would have, hopefully, share the information of how to host multiple websites from home.

With the proliferation of single-board computers, it is now inexpensive to deploy computing devices to serve web applications from home. If you do not switch off your Internet modem at home, you may want the option of accessing some of these devices when you are away from home.

For example, here are some web applications / websites that you may host from home:

This post documents some procedures that we can follow in order to host multiple websites from home.