Hey, new here.
Searched the net, the only relevant info I could find was a post on here dating back to 2009. http://arduino.cc/forum/index.php/topic,15056.0.html
I'm finding very little info on how to power devices from an arduino pro mini as I would an arduino uno, etc.
I'm trying to figure out how to successfully power an s3003 servo powered directly from the ardiuno mini. As currently set up it works fine when powered by usb cable (so regulated not raw input). However when I connect a 9 or 12v 1 amp dc wall adapter to the raw/vin pin on the arduino the device seems to continually reset I'm guessing due to lack of power.
Can anyone help me with this? I read a comment on sparkfun that said unregulated power has a maximum supply of 150ma to things connected to vcc. On another post it says the s3003 apparently only draws 65ma, but when I test with a multimeter on an Uno it seems to draw 200ma. Can anyone confirm if the 150ma limit applies to the 5v version of the mini? I'm surprised it works over usb but not over unregulated.
I think I have two options. 1) I can take a 5v 2amp dc wall to usb adapter (which works when plugged in as usb), snip the end and connect it to vcc. Or I could snip the end and connect it to vcc, AND connect the servo directly to it, instead of going through the board.
What makes the most sense? Or other options.