Hi I'm creating a project for school which will allow me to turn on an led through Wi-Fi. My problem is that I noticed that when i power my Arduino + WiFi shield using USB it works fine, but when I use an external power source I need to press the reset button on the Wi-fi Shield in order for it to work. I am going to be using an external power source and I need to to work even without pressing the reset button. Any ideas?
I was thinking that maybe I can search for a code that would reset the arduino the way that the reset button does. But all I found was a software reset which will not fix my problem.