I am ready to change to more processing for our Arduino project and would really like to use the Due.
We have a single 3.7V LiPo battery and I would like to run this without a battery booster.
All other devices run between 2.5 and 3.0V.
Can I connect directly through the 5V regulated output although not recommended? There should be enough headroom on the 3.3V regulator. If not, I would have to boost.
Has anyone tried this successfully? Our project has limited space for electronics.
IIRC the board has a switching regulator down from Vin to 5V and LDO for 3.3V from
that 5V rail. Whether you can put 3.7V on the 5V rail and get the full 3.3V I don't know.
Perhaps the schematic makes things clearer.
Hi,
I'm using Due with LiIon battery (very similar characteristics with LiPo) w/o any problem. I connected my battery to 5V pin of the Due board and it is workign normally.
But please notice that, fully charged battery gives you 4.2V and goes to 3.7V quickly. Specially for the LiPo battery, please carefull about the drain of the battery. Because, if LiPo battery goes below to certain voltage level (lets say 3V) , it may not recharged again.