Let's Make Robots!

2x photodiode

face the light with it's evil grin
  Features Lenght: 75 mm  Width: 60 mm  Height: 54 mm  Weight: 44 g Free Forming Technique Read more
This PowerSmart head circuit was solarized, courtesy of Darrell Johnson, and dubbed the Solar Power Smart Head (SPSH). The SPSH circuit has been tweaked from time … Read more