| Ben Heck cooks up proximity sensor for cyclists,
still no substitute for keeping eyes open.

Ben Heck’s been busy — again. Within the latest episode of his bi-weekly show he puts his considerable brain power to work on cycle safety. He uses Parallax ping sensors connected to an Arduino to measure whether you’re in any danger from nearby obstacles and traffic. The red and green LED indicators are mounted to ambient light sensors so that they don’t blind you while riding at night.

Click image above to watch episode.