I am trying to power my towerpro MG995 servo using an external regulated 5v supply. The external supply is regulated with 7805 regulator.
The problem I am facing is that the servo responds when i power it with the arduino on-board 5v supply, but dosen't work using the external supply.
I checked that the output voltage of the regulator as 4.88vdc. I connected the GND terminals as well with the GND of the external supply. I have tried the same using a 6v battery as well. Same results. It just dosen't respond to it.
Please read the first post in any forum entitled how to use this forum. http://forum.arduino.cc/index.php/topic,148850.0.html then look down to item #7 about how to post your code.
It will be formatted in a scrolling window that makes it easier to read.
Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png?
Can you post a picture of your project so we can see your component layout?
I have attached a hand drawn circuit diagram which i used. Sorry couldn't give you an actual picture of the setup this time. I will try to upload once i redo the circuit.