How to hookup MegaA328p MC to stepper motor using ULN2003Aafter MC programmed

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1

Hi there, I just bought a Arduino Uno and am trying to work with stepper motor.
I have programed my Atmega328P MC by using Urduino Uno and hooked up the UNO to the ULN2003AN driver and that to the stepper motor. everything works fine:). but now that i know that everything is working fine now i want to take out the MC (since its programmed now) from UNO board and JUST have the MC, Driver, and motor (power supply offcourse!) hooked together, NO UNo board.is it possible?

I tried doing it but nothing is happening!!!:(. HELP please. i have even looked at the data sheet of the Atmega328p and follwed it!!.
so this is wat i have so far:

-stepper motor(unipolor) is hooked up to ULN 2003A pin (13,14,15,16), and the two center taps to the power supply.
-ULN 2003A pin 8 to grnd and 9 to power supply
-MC Atmega328P pin 7 to power supply, 8,22 to grnd, and pin 23,24,25,26 to ULN 13,14,15,16, respectively.
WAT am I doing wrong. please help!!!

Atmel_ATMega328P.jpg

ULN2003A.jpg

2

Since you are using an mcu that has been programmed to use a crystal oscillator, you need to include at least the crystal and 2x 22pF capacitors - or ceramic resonator - on pins 9 and 10. You also need to include the 100nF decoupling capacitor between Vcc and Gnd, and you need to connect the AVcc pin 20 to Vcc.