I've made a prototype for a small music player using arduino pro mini 3.3v.
My question relates to powering the device.
I want to be able to use it outdoors, and eventually power it "straight from the mains" (there's an electrician who can help me later with this part) but right now I'm not sure what type of power input component I should be using for the Arduino. So far I've just been testing with a LiPo 3.7v.
Thanks so much for your help in advance!