Thanks for the help. The lm317 on the schematic is just a placeholder as i couldn't find an lm1117 with the to220 format on the program. As for the capacitors i tried this circuit out on a breadboard before it worked just fine. I checked the output of the regulator and it was 3.6v which should be fine. I hesitated to use the arduino's 3.3v regulator as i feared that it may exceed the maximum current rating of it. (The nrf on the schematic is also a placeholder. I use the one with the sma antenna)