Can I power an Arduino to control a relay to control a load with 1 source like this? Answered
I'm no sure if I can do this or not, I base the schematic of this article http://www.electroschematics.com/8975/arduino-control-relay/
Because I want to use only 1 source to control the whole thing, can I power everything like this? My source can provide 2A, my load uses 100mA
If it's possible, is there any changes that I need to make?