I’m doing a number of projects with the Raspberry Pi. The latest? I just got Amazon Alexa running on my Raspberry Pi and respond to the wake word “Alexa”. This is all base on the Alexa AVS Sample App, provided by Amazon. Ready to setup it up? So what...
Tutorials
Scrum Overview
What is Scrum? Scrum is a popular project management framework that uses an iterative and incremental methodology in Agile Software Development. Fun Fact Do you know what the word scrum really mean? Here is a quote from a dictionary: Scrum – an ordered formation of players, used to restart...
Raspberry Pi 3 – Overview
I recently ordered a Raspberry Pi 3 to evaluate it for both home automation and education purpose. It is quite an amazing piece of hardware for under $40, and there are tons of open source software available. This is what it looks like when it arrives, it comes in...
Bubble Sort
Sorting algorithm is probably one of the first thing we learn when we study computer science. My goal is to try to provide the simplest tutorial for you that hopefully will inspire you to think in simple way, and learn the underlying data structure and algorithm. What is bubble...
Java Modifiers
With the variety of programming languages out there, and each one of them may have a slightly different implementation on their syntax and behavior. It is kind of hard to remember them all, so it will be very helpful to have some quick cheat sheet that will provide guideline...
Commonly Used SQL in 1 page
SQL (Structured Query Language) has been around for many years and is a very useful tool to access data in small or large scale. If you are like me, that may not be using SQL everyday, but need to use it once in a while. What I like to...
A Simple HTML Page
The internet, also known as the World Wide Web, started to really take shapes in the 1980s, and basically has exploded into all aspects in our society. We can find all kind of information in the internet, we can also interact with it, we shop online, we pay our...
Python via Trinket (2) – Having fun with Spirals
This is part 2 of the Python via Trinket series. Next, let’s do something a bit more complex. Let’s draw some spirals. Creating patterns with spirals are very interesting and relaxing to watch. There are many way to do this, I created 2 reusable functions so the source code...
Python via Trinket (1) – Having fun with shapes !
Have you try Trinket yet? It is an education site that provides lots of interactive education opportunities which I recently stumble over. I find it fascinating to evaluate various online education sites that provide innovative ideas on how to do interactive teaching, both online or in a classroom. The...
Tower of Hanoi – a study of recursive function
The Tower of Hanoi is a classic project assignment that most student of Computer Science would encounter in their academic classes. It is usually used to illustrate the power of recursive logic in a program, of cause that it is also a great puzzle to give some good exercise to...