Such devices exist and they are LED lights that pedestrians and bicyclists alrea... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

tintor on March 20, 2018 | parent | context | favorite | on: Police Say Video Shows Woman Stepped Suddenly in F...

Such devices exist and they are LED lights that pedestrians and bicyclists already use.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact