i assumed i could, i just don't know how to do it..
i was looking around and i came across this topic: TOPIC
and CrossRoads had said:
CrossRoads:
Arduino 5V regulator is only good for 800mA max, and less from a 12V source, the regulator will overheat.
You can supply 12V to arduino, and run12V in parallel to the coin acceptor with its own 5V regulator if needed.
Connect grounds to provide common reference point.
but i have never used a regulator before and i don't foresee me using a breadboard in this project.. it's just basically the arduino - (i honestly i rather use a mini than a whole arduino), coin acceptor and lcd screen, a reset button with a resistor.. was also thinking a speaker/buzzer and a blue led with a resistor... but that's about it.. and maybe something to hold/save constant data changes for power outage as mentioned.