I’m working on a project using Bluetooth to build location aware apps. The new Bluetooth 4.0 standard is a lot more power efficient, and more importantly, allows for unpaired data advertising. This means any number of bluetooth devices could communicate to phones without first having to go through the tedious manual process of pairing.
I built a simple bluetooth transmitter using an nRF24L01+ RF transciever, and is powered by an ATMega328P-PU chip and a battery pack.
I wrote a simple proof-of-concept program in Objective C, which listens for the Bluetooth transmitters and displays which is closest. It works by comparing the signal strength (RSSI value) of each device.
At Hackathon ACT ‘13, I teamed up with four other coders, designers and entrepreneurs to prototype an app from scratch in a weekend.
Our aim was to make queuing quicker, and replacing paperwork for corporate and government service desks. Our app won an award for Best Innovation for Government.
The project involved making an iPhone app for customers to fill in forms while queuing. As well as a web app for handling the filled out forms.