J.D. Zamfirescu

I teach programming & electronics, and make tools & robots.

In my past life, I was founder/CTO at EtherPad and worked on Google Wave.

Highlights & Recent Work

Rudy the Red Dot

IDE shows in-line program state, evaluation, execution.


Robot bartender mixes drinks ordered by phone

Workshop Weekend &

Workshop Weekend: Arduino

Award-winning workshops in downtown Oakland


YC-funded collaborative editor; acquired by Google

Learning Unlimited

National 501(c)3 supports undergrad teacher program