Sterilizing is an important part in anti-epidemic effort, this model simulates a UV sterilizer.
Switch on the power and wait 10 seconds for the KOI to power on completely.
Hold the first item and press A to train the model to recognize that item.
Hold the second item and press B to train the model to recognize that item.
Press A+B to train the model to recognize the background.
Press any button on the KOI to start recognition.
The light will turn on when an item is recognized.