Month: March 2009

Arduino Minisumo 01

I really like this little sumo bot based on the ever-popular Arduino microcontroller. The bot features line sensing, obstacle detection, and a nice interface board for the geared motors. Check out the website for more information and the source code. Features: Weight: 332 g Size: L=10cm W=10cm H=12cm Sensors: Dual Front telemeter ranging, Dual Surface […]

Successful amateur EVE space radio bounce

Successful amateur EVE space radio bounce

A group of German amateur radio hobbyists has successfully bounced a radio signal off the planet Venus, over 31 million miles (50 million km) away, and received it back on Earth (Earth-Venus-Earth = EVE). Peter Guelzow (DB2OS), President of AMSAT-DL, writes: On March 25th, 2009, a team from the German space organisation AMSAT-DL reached another […]