# Contactless Door Bell

Touching public facilities is something that should be avoided during a pandemic. This model simulates a contactless door bell.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/bell.png)

### Building Instructions

[Building Instructions Resource Pack Download](https://bit.ly/AIHealthCareSetBuildingGuide)

### Sample Wiring

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/bellcon.png)

### Sample Program

[Contactless Door Bell](https://makecode.microbit.org/_YFV5b8Ax7aqr)

{% embed url="<https://makecode.microbit.org/_YFV5b8Ax7aqr>" %}

### Model Instructions

1. Switch on the power and wait 10 seconds for the KOI to power on completely.
2. Press A to start recognition.
3. The model presses on the door bell when a face has been detected.