Got a problem with the Arduino shift out function and a LED array Answered
After looking at this instructable, I wanted to start building my own LED array. I found this Arduino article. I bought the 74HC595N chips and connected everything exactly as the article showed it, and copied the first example program directly into the Arduino. The Arduino is connected through the USB cable to my computer for power.
My problem comes in when I hook the circuit into the 5V on the Arduino. When I hook it up the Arduino shuts itself off. I wasn't sure if it was overloading the Arduino, so I hooked it up to an old, plug in breadboard I have which has a limit of 1.5A. When I hooked up the circuit the breadboard produced a high pitch tone and still nothing happened.
I have checked and rechecked all the connections and jumpers, (even looked at the data sheet for the part) everything seems to check out. The LED's are just simple green LED's, but the resistors I am using are 1k instead of the 220 ohms the article said to use (i had only 1k handy and the LED's still light with a 1k).