As a countermeasure for COVID-19, it is difficult to get a sense even if physically saying that the distance is 2 m. For this reason, I have created a device that visually informs you how far you are from the person.
Trigger: Ultra Sonic SensorAction: NeoPixel (LED) and toio (Sound)
M5Stack and toio are connected by BLE. M5Stack is the central role and toio is the peripheral.
- In this demo video, the trigger distance is set to 10cm, but it is actually 2m.
- I used an apple sherbet case for the exterior.