D-Link DSP-W215 WiFi Smart Plug (0)


    August 9th, 2015 | Tags: , , , , , , , | Posted in Life, Reviews, Tech

    Package comprise WiFi Smart Plug, Quick Install Card, Quick Installation Guide and miscellaneous leaflets.

    Package comprise WiFi Smart Plug, Quick Install Card, Quick Installation Guide and miscellaneous leaflets.

    Review At A Glance
    Product D-Link DSP-W215 WiFi Smart Plug [product link]
    Summary  A WiFi Smart Plug to realise your own Smart Home. Aside from controlling your home's electronic devices, it is also an energy monitor.
    Pros + Easy to setup
    + Works as intended
    Cons – Does not work with IFTTT
    - Power button slightly obstructed when using 3-pin power plugs
    SRP S$69.00 (at time of post)

     

    The D-Link DSP-W215 WiFi Smart Plug is a multi-purpose, compact and easy-to-use device that allows you to monitor and control your home’s electronic devices. It is one of the products in D-Link’s Smart Home (Connected Home) concept. In this post, I will be reviewing the D-Link DSP-W215 WiFi Smart Plug and mydlink Home app.

     

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    ESP8266 Breadboard Adapter (0)


    August 2nd, 2015 | Tags: , | Posted in Guides, Tech

    ESP8266 (ESP-01) - Breadboard Adaptor with Power Filter (10uF Capacitor).

    ESP8266 (ESP-01) – Breadboard Adaptor with Power Filter (10uF Capacitor).

    Finally did up a ESP8266 Breadboard Adaptor so that I can do quick prototyping with the ESP8266 and breadboard. Added a 10uF tantalum capacitor power supply filter in the process. Just in case you are wondering, the green wire on the ESP8266 links the Reset Pin to GPIO16 to enable deep sleep.

    If you are interested in making one, the part list is below. Just make sure you get the components for 2.54mm pitch.

    1. Stripboard
    2. 2×4 female header
    3. 1×4 male headers
    4. 10uF tantalum capacitor
    5. Soldering equipment/tools, heat shrink tube

     

    Book Review – The Singapore Permanent Portfolio (1)


    July 22nd, 2015 | Tags: , , | Posted in Life, Reviews

    I was having a bad toothache (plus severe headache) from a cracked molar over the long weekend and had to visit the dentist on Monday to fix it. Don’t know whether is it a good thing or not but I ended up with the chance to read “The Singapore Permanent Portfolio” by Alvin Chow while waiting in between dental appointments.

    The Singapore Permanent Portfolio by Alvin Chow

    The Singapore Permanent Portfolio by Alvin Chow

    The idea or methodology of Permanent Portfolio is not new. What I liked about this book is the ease of reading and its contextualised contents.

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    Arduino Dust Sensor with ESP8266 (1)


    June 14th, 2015 | Tags: , , , , | Posted in Guides, Life, Tech

    Comparing the size of ESP8266 with a SD Card

    Comparing the size of ESP8266 with a SD Card

    The ESP8266 comes in various packages (e.g. ESP-12, ESP-07) but I bought the (pretty) bare package for less than US$2.50. For this price, the ESP8266 (ESP-01) has got 80 MHz CPU, 512KB program storage space, WiFi and 2 GPIOs. This tiny Arduino board is very suitable for Internet-of-Things (IoT) implementations.

    With this, I decided to rebuild my previous Arduino-based Dust Sensor. The codes for the ESP8266 is as follow.

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    Arduino Dust Sensor (4)


    May 16th, 2015 | Tags: , , , , , | Posted in Guides, Life, Tech

    Put together a dust sensor using Arduino Mega 2560, Shinyei PPD42NS dust sensor and LCD shield.

    Put together a dust sensor using Arduino Mega 2560, Shinyei PPD42NS dust sensor and LCD shield.

    Put together a Arduino-based dust sensor over the weekend using the following components:

    The codes and wiring instructions for Arduino Mega 2560 and Shinyei PPD42NS is as follow. However, I did include Serial output so you can view the sampling results using Arduino IDE’s Serial Monitor (9600 bauds).

     

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    Docker – A highly Portable and Lightweight software container (0)


    May 9th, 2015 | Tags: , , , , | Posted in Tech

    Docker, a lightweight Software Container Virtualization

    Docker, a lightweight Software Container Virtualization

    Coming from a background that dabbles with application, desktop and server virtualization technologies (e.g. Citrix XenApp/ XenDesktop, XenServer, VMware ESXi), the Docker technology seems new and yet familiar at the same time.

    Docker is somewhat similar to Java Virtual Machine (JVM) whereby it supports application stack portability across platforms (Linux, Mac, Windows, etc.). The difference is that you are not restricted a particular programming language (like Java in the case of JVM).

    You can basically package (any) applications or platforms (e.g. WordPress, Node.js, Git Server) or disk images (e.g OSes like Ubuntu, Centos, Fedora) and run it on the Docker Engine. Best of all, Docker Engine runs on Linux, Mac, Windows, Amazon EC2, Google Cloud Platform, Microsoft Azure, Synology, and the list goes on and on. Basically, you get Application Stack Portability.

     

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