![Popular Science Radio show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/031/052/small/popular-science-radio.png)
Summary: Stop drunk driving! Today we’re talking with Charles Michael Yim, the CEO and founder of Breathometer. What’s a Breathometer? It’s the world’s first smartphone breathalizer. Charles tells us about how he came up with the idea, how long it took him to put it together and why it’s a must-have.