Lychee Quiz Buzzer

In the scenario of a quiz competition, you may need a set of device to precisely tell you who raised hand first. This app is a replacement of that kind of dedicated set of device.

One device (phone or tablet) runs this app and acts as the Master role.
Another one or more devices runs this app and acts as the Client role.

In order to make this app run, all of you need to connect to the same Wi-Fi hotspot.