Recently, I fell in love with the simple RGB LED 💡 I love connecting physical things and displaying them on a web browser! So I thought of getting the Neopixel ring and displaying different colored lights and patterns through the control of the web interface. Here are some steps to make that... What we need 60 LED Neopixel ring + USB cable Arduino + USB cable for power Jumper wires 470Ω resistor…
I have been busy learning 2 new things: Beaglebone , a single board computer and Go , a programming language. It was especially fun running a compiled Go script and playing with the GPIO pins of the Beaglebone. In this blog, I wanna share how to run a simple digital write with a blinky LED and read analog values from a potentiometer. Pre-requisites Install Debian Linux for Beaglebone with an SD…
In the past month, I was immersed in DevOps starting up various EC2 and RDS instances in AWS , trying to deploy my app consisting of Rails API server, AngularJS frontend and PostgreSQL database in various environments such as staging or production. It was a challenging time for me as I needed to have a systems view instead of just a single application. Yet, firing up some instances in different…
The coolest thing about being a full-stack engineer is that I get to dabble in all parts of development including ux , frontend, backend and devops . While I love the coding aspect, the real test of the software comes when the user ultimately gets to interact with it. My current project's tech stack included Rails as a pure api server, along with AngularJS as a stand-alone frontend and AWS for…
Angular-pdf is an AngularJS directive based on Mozilla's PDFJS . With this directive, a pdf file can be embedded into a web page with simple controls such as next/previous page, zooming, rotation and jump to a page. demo docs source code feedback Install it for current projects with bower or simply git clone: bower install angular-pdf # or git clone git@github.com:sayanee/angularjs-pdf.git And…
Let's say we have 3 to 4 active projects at any one time. These projects might include, a couple of client projects, a side project or even a blog. Every time when starting each of these projects, typically the following applications need to be opened: Text editor with different folder paths Command line with various panes and tabs Some native applications Browser with various tabs For each of the…
Having a brand new computer is like having a chance to sharpen your tool so that when we work with it, we are in a flow . I took about 7-8 hours in total to get everything working! Model Name: MacBook Pro Model Identifier: MacBookPro11,2 Processor Name: Intel Core i7 Processor Speed: 2 GHz Number of Processors: 1 Total Number of Cores: 4 L2 Cache (per Core): 256 KB L3 Cache: 6 MB Memory: 8 GB…
2013 This was an intense and vibrant year of sharing for me! And I absolutely loved it. As I immersed myself in the world of web technologies, I found myself taking the route of writing , screencasting and podcasting to further strengthen the understanding of my work. After all, teaching and sharing is learning for myself as well. Through this I also made so many wonderful conversations from…