And the erasers were circular, so that their rotation wasn't significant and did... | Hacker News

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

raldi on Sept 11, 2015 | parent | context | favorite | on: Dry erase board lined with IR sensors to record pe...

And the erasers were circular, so that their rotation wasn't significant and didn't need to be known by the software.

jwcacces on Sept 11, 2015 [–]

Yes!

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