Pretty much every project I've done just lately has required me to test out some servos and experiment with their positions ...

To do so, the Arduino was set up to monitor the BUSY line on the printer’s parallel port, setting the CTS line active whenever the busy line was inactive.

CGA monitors may not be an amazing technological advance these days, but they can generally be found very cheaply. Additionally, they have a DB-9 connector and work off of TTL ranges (0-5VDC) makin… ...

News Arduino Helps Monitor Your Plants, Nurtures Your Precious Saplings By Elizabeth Fish Jun 4, 2012 11:31 am PDT [Credit: Invent Geek] ...