Hello guys! I'm a new Arduino user and looking on a good way to power my new robot.
Arduino Uno USB board Sabertooth 2x5 motor controller 2x 12V motor (2A max) LCD shield (4x20 from DFRrobot) PS2 Wireless Controller Some sensors... 2 Batteries, both NiMH (7.2V and 12V)
And here is what I intend to do. Is there anything bad in this setup? I'm not sure the 5V/100ma from the sabertooth is enough to power arduino with LCD,so I use a separate battery. This will also isolate both power supplies. And the 7.2V battery should not make the regulator overheat I hope. If any advice/tip can be given, I will gladly take them :) If it seems good, I'll try it as as soon as possible! Thank you!