How The Chalkbot Works (via ktakeyama) (via Make)

Looks like a fun toy to build at home. I’m thinking servos and texas with an Arduino, rather than the chalk sprayers.

Textas are a bit thin… perhaps a dot matrix + ink ribbon version just for the hell of it? The important factor is autonomy.

Mobile Innovations (via kenyacitizentv)

Kenyan home automation via mobile phone. Looks like 3210s so SMS rather than bluetooth.. good text plan hopefully.

Reminded me of a video I saw a few years ago of an African kid doing 12v lighting in his village with solar and scavenged car batteries. All electrical theory was self taught. With that curiosity and initiative. I wonder if he went much further, like this guy.