The project I want to build during this roadtest is a Visible Light Communication (VLC) system between a LED driven by the TPS92512 board and an Android smartphone
The idea behind VLC is very simple: light bulbs are pervasive, have ample access to power, and are often ideally positioned for sensing applications. So, why not transform lighting sources into landmark beacons that can be used, for example, for indoor localization? If each light bulb could uniquely identify itself to nearby mobile devices, it would be possible to localize the mobile devices in all the areas that are not reached by the GPS signal.
For this roadtest, I will build a VLC transmitter based on the TI LaunchPad and the TPS92512 evaluation board
The steps of the project will be as follow
- Introduction of the TPS92512 board
- Development of the application to drive LED
- Development of the Android app
By the way, since it’s tradition in roadtests to take pictures of the unwrapping the kit, here is some pictures of the unboxing ceremony
The content of the kit
The MSP430 Launchpad. The layout, the LCD display and the switch buttons make this board really flexible: I already have tons of projects where such a small, low-power board suits perfectly
Here is the TPS92512EVM board
And finally here are the BLE-enabled LEDs
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