Very Cool App
This app is very easy to use and allows instant feedback on my traffic lights color. This Bluetooth board also makes for a great conversation piece with my friends and creates an awesome atmosphere at parties.
Safety manager
Bought the Bluetooth controller with LED signal. Let me just say, this thing delivers! Easy to setup, signal strength is good and I was able to change the pin code so no one else can change it. It's used for our corp safety program
