Hi, I’m new to spark and didn’t order anything yet.
I want to build two lamps (2.5 V 0.75 W 300 mA). They are supposed to be both connected to the internet and you can switch lamp 1 on with a (hardware) switch on lamp 2 and vice versa.
The idea is very similar to the Good Night Lamp (see http://goodnightlamp.com/ ).
I would like to power the lamps with 4xAA rechargeable battery packs.
Can I somehow use these to power the Photon as well as power the lamp itself? If I see it right, I can connect the package to the photon via the VIN Pin and the lamps via the 3V3 pin. I couldn’t find any maximum for the current of the 3V3, however (Digital pins are 20mA). Can somebody confirm this or push me in the right direction?
Also, how long would you estimate this setting to last on one battery charge?
I am thankful for any tips and thoughts!