Other suggestions on your circuit, I see some question marks there.
R1 and R2 can be anywhere between 220? and 1K?. R2 on Arduino boards is typically 1K so as not to load the pin too heavily and thus making it unable to drive additional external loads.
R3 should be 10K?, not 10?. No harm done, but if there were a reset button, it would draw 500mA from the power supply. Again no harm to the MCU, but many tactile button switches aren't rated for nearly that much current.
AREF should not be connected to Vcc, it should have a 100nF ceramic capacitor to ground.
Similarly, add 100nF capacitors to ground on the Vcc and AVcc pins. All of these 100nF caps should be as close to the chip as possible.