Power supply options for circuit

Question

So, I have the above circuit and I have to somehow integrate this into a mobile phone cover. So to power it, I was thinking of using a 3.7v 600mAH Li-Po battery. I want to integrate the battery into the cover in such a way that the cover becomes a rechargeable cover. As the Beetle needs 5V, I will need some sort of booster as well. The other alternative is to use 2 coin cell batteries that supply 3.3 V each.

Some more information on the project:

1. I am creating an interactive game and I basically want this circuit to act as an input to the game that will be played on a mobile phone.
2. The circuit has to fit into a mobile phone cover and the push buttons that you see on the circuit are to be placed on either side of the cover. Both buttons have to be pressed simultaneously to create the required action(s) in the game. I already have this part working.
3. In terms of how long I would like the battery to last between charges: a similar amount of time that a phone battery lasts (if that's any measure to put things into perspective)

I am not sure what the best solution for this will be; by best I mean the easiest and least complex to implement.

Any assistance will be appreciated.

Answer 1

Since Beetle Bluno is based on ATMega328p, which can operate in a range of voltages from 2.7VDC to 5.5VDC, your board can most likely be powered from a single Li-Po battery, fed to the VCC, without any additional circuitry.