For this project I used one of my ATtiny84a development boards (see my other projects). Instead of having a standard distance measuring demo I decided to make it more fun. By placing the components in a creative manner I was able to create a little sculpture the shape of a person. I displayed it at my booth during one of the STEAM festivals, and kids love to hold and play with it.
The OLED display shows the distance in centimeters and the voltage supplied by the battery. The voltage is measured internally by the ATtiny84a.
ATtiny84 development board
See my other projects for more information