Read the part of the data sheet about data consumption.
The board / chip can draw anywhere between 500 and 2000mA. Make sure your external supply is capable of providing that much current, since USB won't be able to.
Read the part of the data sheet about data consumption.
The board / chip can draw anywhere between 500 and 2000mA. Make sure your external supply is capable of providing that much current, since USB won't be able to.