Quick References

As a constant learner, I get to touch upon many ideas in different areas. This category is for me to capture those ideas which I felt people may reference to get ahead of their tasks. Most of the time, I do come back to this section of my blog to remember what I had learnt in the past.

How to host your Python 3 Flask MVP with Supervisor on Ubuntu Server 16.04

Due to its minimalistic design, the Python Flask framework is ideal for building the web server layer of minimal viable products (MVP) to validate customers’ needs. However, development work is just one part of the user validation efforts. To ensure that our customer can access our Flask MVP and provide feedback as and when they are available, we will need to get it running with as a server daemon.

Supervisor is a convenient tool for running applications as a server daemon.

This post documents the steps that I took to host a Python 3 Flask MVP with Supervisor on an Ubuntu Server 16.04 instance.

How to setup Ubuntu Classic Server 16.04 on Raspberry Pi 3 for running Python 3 applications

Most of the customers who wanted to try out my minimal viable products (MVP) would provide me with an instance of Ubuntu Classic Server 16.0x these days. As such, it makes sense for me to trial my MVPs on the Ubuntu Classic Server 16.0x to ensure that I spend minimal time in deploying my MVPs to validate my customers’ needs. Since I have a few Raspberry Pi 3s lying around in the house, I can install a version of Ubuntu Classic Server 16.0x to serve as the development server for me to trial my MVPs.

Fortunately, the good folks at ubuntu-pi-flavour-maker.org had put up an optimised Ubuntu Classic Server 16.04 image for Raspberry Pi 3.

This post documents the steps that I took to run Ubuntu Classic Server 16.04 on my Raspberry Pi 3 for running Python 3 applications.

How to connect the Raspberry Pi Camera Module to Raspberry Pi 2 or Raspberry Pi 3

Since the Raspberry Pi camera module connects to most of the recent Raspberry Pi boards via the camera serial interface (CSI), the Raspberry Pi camera module is an ideal peripheral for implementing Raspberry Pi based projects that require image capturing.

This post documents how to connect a Raspberry Pi camera module to a Raspberry Pi 3.

Setting up a low cost desktop computer with Raspberry Pi 3

With the advent of single-board computers like Raspberry Pi, we do not have to spend too much money on a computer that can fulfil our basic computing needs. The launch of Raspberry Pi 3 was like icing on the cake; it came with WiFi connectivity. Since WiFi is ubiquitous, the WiFi connectivity of the Raspberry Pi 3 made it a suitable candidate to be used as a low cost desktop computer in the house, office or school.

This post documents how you can setup a low cost desktop computer with Raspberry Pi 3.

How I setup a CCTV camera with Raspberry Pi Zero W and motionEyeOS image for home surveillance

When the Raspberry Pi Zero W was launched, I didn’t think twice before ordering one. Compared to the Raspberry Pi Zero, the Raspberry Pi Zero W comes with WiFi. This meant that I can use my new Raspberry Pi Zero W to replace my Raspberry Pi 3 CCTV camera for home surveillance and use the more powerful Raspberry Pi 3 for other projects.

This post documents how I setup my Raspberry Pi Zero W as a CCTV camera using the MotionEyeOS image.

Installing Octave on my MacBook via Homebrew

Andrew Ng’s Machine Learning course on Coursera brought about the need for me to install Octave on my MacBook. Since I had only two days before I could submit my first Octave assignment without any penalty, I decided to use the simplest method to get Octave running on my MacBook.

This post documents the steps that I took to install Octave on my MacBook via Homebrew.

How to connect Raspberry Pi camera module to Raspberry Pi Zero W and the official case

Equipped with a wireless LAN and priced at only $10, I see the Raspberry Pi Zero W as a good candidate for a low cost CCTV that I can deploy at my house for surveillance purposes. With the arrival of my Raspberry Pi Zero W and the official case, I could free up the Raspberry Pi 3 that I had been using for home surveillance for other projects.

This post documents how I connect my Raspberry Pi camera module to my Raspberry Pi Zero W and the official case.