Hi, I'm trying to compile the osz-demo-code from this very intersting tutorial: http://www.ros.org/wiki/rosserial_arduino/Tutorials/Arduino%20Oscilloscope The compilation fails because of missing include Adc.h. I'm using ros-electric and arduino UNO with sdk 022. Ros_lib exists at my sketchdirectory and other rosserial arduino demos ccmpile and work perfect with current ros installation ... Where can I find the correct Adc.h or working Code vor using ADCs ? Thanks in Advance Cheers Christian -- Chrimo Private Google Mail Account