After losing my first circuit board when a wire accidentally touched some wrong trace and blew the 5V regulator on the arduino. Next time I am using a socket to connect that nano to my main board. I was unable to desolder the nano off my board. Why did I not use a socket?!?
Anyhow, I am thinking my design may needs to be changed. My project is based on this instructable:
The 4017 decade counter, 595 shift register, and an 8X8 LED matrix driven by transistors is all powered by the +5V regulated pin on the nano. Now I am thinking that may not be the best idea. Should I have the power come from the VIN instead?
Thanks for the guidance! :)