Wanting to make an impact on the sidewalk quickly? This Spray Chalk Machine is sure to get that done. “This device is controlled by two Arduino Duemilanove boards, which apparently base the chalk “dot†timing on encoders sensing movement in the two wheels that the cart rides on. ”
 Thanks to GearBest for sending in this Opus BT-C3100 V2.0 Intelligent Battery Charger for review. at a quick glance this charger might look like any other charger that you see at the grocery store. Your generic store bought brand probably also has 4 charging bays for AA and AAA batteries, it probably has 2 charging circuits which places 2 cells in series to charge them, it most likely
Computer engineer Lassee Laussen and software engineer Ken Madsen built this ABB Robot made of LEGO bricks. It was an 8 month build to recreate the complex 6 axis machine. If you are interested in seeing some other interesting projects from Lassee and Ken have a look at Brick It. “The LEGO version of the IRB 120 is so accurate that it mimics every shape and curve. It also
