arduino standalone question

this is my first project using the atmega programmed using the arduino, but standalone.

I’m not sure if I made all right, so if you could take a look at the circuit at see if there is any problem on it. Wink

here’s the link:

thanks a bunch Grin

  1. should have a couple of bypass caps between power and gnd.
  2. A pull-up resistor on RESET would be a good idea.
  3. wiring near “digital switch” looks odd, but I’m not exactly sure what that
    is, so I don’t know if it’s actually incorrect. The transistor should probably
    have a base resistor, and if the box is relay coil, the transistor would usually
    be between one side of the coil and gnd, instead of “across” the coil.