A lot of people have used ESP8266 to add inexpensive WiFi connectivity to their projects, but [Oscar] decided to take it one step further and program an Arduino over WiFi with the ESP8266.

18 year old maker and developer Nikodem Bartnik from Poland, has created and awesome Arduino-based dot-matrix printer, capable of creating art on paper 55 cm wide and as long as you need, thanks ...

The Arduino takes this information and uses it to move the motors of the printer, positioning the marker over the correct location of the paper so the user can produce a dot.

Kenneth picked up an old dot matrix printer from a swap meet for only $5–what a steal! He then used a BeagleBone –basically Texas Instruments’s version of an Arduino board, to connect it to ...

This may be our first sand matrix printer, but it’s not our first sand 3D printer. Fail of the Week is a Hackaday column which celebrates failure as a learning tool.