Programming – Photo and Me

Hong Kong Techathon 2015

July 6, 2015 sunny Leave a comment

I was invited to Hong Kong Techathon 2015 to team up with friends. My team AtTempSpace comes with experienced people in Business development and Legal, and they are very friendly people. It went well and we passed the first stage! Although I only can help out on technical side, it was great joy that I could meet many people and listened to many innovative ideas.

Not sure how much point my App worth during the first stage as not many team has their MVP showing, but I built an App in couple hours with search and chat function (And actually I built two apps in 24 hrs because of being stupid that deleted the first app on the first day with some command line tool, and I had to redo it again).

Cheer for all winning teams on first stage, and good luck and prepare for the final! 🙂

My first App on App Store

December 17, 2014 sunny Leave a comment

My First IOS app just published to App store. It is a simple controller app to control Rapiro when it is connected to Red Bear Labs BLE Nano board. Not really a common app, but please support 🙂

https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=939397002&mt=8

GSR Testing

October 8, 2014October 8, 2014 sunny Leave a comment

Got my GSR sensor for Seeedstudio. I don’t know how it works, so I will just copy the product description here:

“GSR, standing for galvanic skin response, is a method of measuring the electrical conductance of the skin. Strong emotion can cause stimulus to your sympathetic nervous system, resulting more sweat being secreted by the sweat glands. Grove – GSR allows you to spot such strong emotions by simple attaching two electrodes to two fingers on one hand, an interesting gear to create emotion related projects, like sleep quality monitor.”

I also created an app to visualise the data from GSR sensor. Here is the Demo Video.

SocketIO and IOS

October 8, 2014 sunny Leave a comment

Today I created an IOS app and web app that would allow a host to change client’s background color. A Demo video is here:

That’s the first IOS app I did with Swift. Client app (both native and web) used websocket to connect to the socketIO server. The Host app was a list of button with Colors, and whenever the button was clicked, the client app would receive an event and updated the background color of the client app.

Arduino realtime data with d3js, nodejs, socketio

September 2, 2014 sunny Leave a comment

Last week I created a client app with Angular Framework that will receive data from a Node server with SocketIO.

Gauge was created with Angular directive and d3js. Main Controller will update the gauge with a SocketIO event. One is for light sensor, and the other one is for temperature sensor. Both sensors are connected to Arduino, and data will send to Node server through serial port.

LineChart was also a real time chart, but it was not perfect yet. Seem SVG won’t redraw when the page is not in focus(on other tab), but it would redraw right away when the page was back in focus…Would have to look where to update the chart when new data come in.

More detail will be post later on http://sunnycyk.com